1 Updating Information for FreeBSD current users.
3 This file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>.
4 See end of file for further details. For commonly done items, please see the
5 COMMON ITEMS: section later in the file. These instructions assume that you
6 basically know what you are doing. If not, then please consult the FreeBSD
9 https://docs.freebsd.org/en/books/handbook/cutting-edge/#makeworld
11 Items affecting the ports and packages system can be found in
12 /usr/ports/UPDATING. Please read that file before updating system packages
15 NOTE TO PEOPLE WHO THINK THAT FreeBSD 14.x IS SLOW:
16 FreeBSD 14.x has many debugging features turned on, in both the kernel
17 and userland. These features attempt to detect incorrect use of
18 system primitives, and encourage loud failure through extra sanity
19 checking and fail stop semantics. They also substantially impact
20 system performance. If you want to do performance measurement,
21 benchmarking, and optimization, you'll want to turn them off. This
22 includes various WITNESS- related kernel options, INVARIANTS, malloc
23 debugging flags in userland, and various verbose features in the
24 kernel. Many developers choose to disable these features on build
25 machines to maximize performance. (To completely disable malloc
26 debugging, define WITH_MALLOC_PRODUCTION in /etc/src.conf and rebuild
27 world, or to merely disable the most expensive debugging functionality
28 at runtime, run "ln -s 'abort:false,junk:false' /etc/malloc.conf".)
31 Commit b69019c14cd8 removes pf's DIOCGETSTATESNV ioctl.
32 As of be70c7a50d32 it is no longer used by userspace, but it does mean
33 users may not be able to enumerate pf states if they update the kernel
34 past b69019c14cd8 without first updating userspace past be70c7a50d32.
37 As of commit 01ad0c007964 if_bridge member interfaces can no longer
38 change their MTU. Changing the MTU of the bridge itself will change the
39 MTU on all member interfaces instead.
42 Commit ee29e6f31111 changed the internal KAPI between the nfscommon
43 and nfsd modules. Therefore, both need to be rebuilt from sources.
44 Bump __FreeBSD_version to 1400026 for this KAPI change.
47 The 20210707 awk update brought in a change in behavior. This has
48 been corrected as of d4d252c49976. Between these dates, if you
49 installed a new awk binary, you may not be able to build a new
50 kernel because the change in behavior affected the genoffset
51 script used to build the kernel. If you did update, the fix is
52 to update your sources past the above hash and do
55 % sudo -E make install
56 to enable building kernels again.
59 Commit 1e0a518d6548 changed the internal KAPI between the NFS
60 modules. They all need to be rebuilt from sources. I did not
61 bump __FreeBSD_version, since it was bumped recently.
64 awk has been updated to the latest one-true-awk version 20210215.
65 This contains a number of minor bug fixes.
68 The NFSv4 client now uses the highest minor version of NFSv4
69 supported by the NFSv4 server by default instead of minor version 0,
71 The "minorversion" mount option may be used to override this default.
74 Bump __FreeBSD_version to 1400024 for LinuxKPI changes.
75 Most notably netdev.h can change now as the (last) dependencies
76 (mlx4/ofed) are now using struct ifnet directly, but also for PCI
80 The directory "blacklisted" under /usr/share/certs/ has been
81 renamed to "untrusted".
84 svnlite has been removed from base. Should you need svn for any reason
85 please install the svn package or port.
88 Commit e1a907a25cfa changed the internal KAPI between the krpc
89 and nfsserver. As such, both modules must be rebuilt from
90 sources. Bump __FreeBSD_version to 1400022.
93 The an(4) driver has been removed from FreeBSD.
96 The vendor/openzfs branch was renamed to vendor/openzfs/legacy to
97 start tracking OpenZFS upstream more closely. Please see
98 https://lists.freebsd.org/archives/freebsd-current/2021-June/000153.html
99 for details on how to correct any errors that might result. The
100 short version is that you need to remove the old branch locally:
101 git update-ref -d refs/remotes/freebsd/vendor/openzfs
102 (assuming your upstream origin is named 'freebsd').
105 Commits 17accc08ae15 and de102f870501 add new files to LinuxKPI
106 which break drm-kmod. In addition various other additions where
107 comitted. Bump __FreeBSD_version to 1400015 to be able to detect this.
110 Commit ca179c4d74f2 changed the package in which the OpenSSL
111 libraries and utilities are packaged.
112 It is recommended for pkgbase user to do:
113 pkg install -f FreeBSD-openssl
114 before pkg upgrade otherwise some dependencies might not be met
115 and pkg will stop working as libssl will not be present anymore
119 Commit 875977314881 changed the internal KAPI between
120 the nfsd and nfscommon modules. As such these modules
121 need to be rebuilt from sources.
122 Without this patch in your NFSv4.1/4.2 server, enabling
123 delegations by setting vfs.nfsd.issue_delegations non-zero
127 Commit 7763814fc9c2 changed the internal KAPI between
128 the krpc and NFS. As such, the krpc, nfscommon and
129 nfscl modules must all be rebuilt from sources.
130 Without this patch, NFSv4.1/4.2 mounts should not
131 be done with the nfscbd(8) daemon running, to avoid
132 needing a working back channel for server->client RPCs.
135 Commit 01ae8969a9ee fixed the NFSv4.1/4.2 server so that it
136 handles binding of the back channel as required by RFC5661.
137 Until this patch is in your server, avoid use of the "nconnects"
138 mount option for Linux NFSv4.1/4.2 mounts.
141 For 64-bit architectures the base system is now built with Position
142 Independent Executable (PIE) support enabled by default. It may be
143 disabled using the WITHOUT_PIE knob. A clean build is required.
146 Various LinuxKPI functionality was added which conflicts with DRM.
147 Please update your drm-kmod port to after the __FreeBSD_verison 1400003
151 PC Card attachments for all devices have been removed. In the case of
152 wi and cmx, the entire drivers were removed because they were only
153 PC Card devices. FreeBSD_version 1300134 should be used for this
154 since it was bumped so recently.
157 Transport-independent parts of HID support have been split off the USB
158 code in to separate subsystem. Kernel configs which include one of
159 ums, ukbd, uhid, atp, wsp, wmt, uaudio, ugold or ucycom drivers should
160 be updated with adding of "device hid" line.
163 ncurses installation has been modified to only keep the widechar
164 enabled version. Incremental build is broken for that change, so it
165 requires a clean build.
168 The FreeBSD project has migrated from Subversion to Git. Temporary
169 instructions can be found at
170 https://github.com/bsdimp/freebsd-git-docs/blob/main/src-cvt.md
171 and other documents in that repo.
174 The services database has been updated to cover more of the basic
175 services expected in a modern system. The database is big enough
176 that it will cause issues in mergemaster in Releases previous to
177 12.2 and 11.3, or in very old current systems from before r358154.
180 Obsolete in-tree GDB 6.1.1 has been removed. GDB (including kgdb)
181 may be installed from ports or packages.
184 ping6 has been merged into ping. It can now be called as "ping -6".
185 See ping(8) for details.
188 Default value of net.add_addr_allfibs has been changed to 0.
189 If you have multi-fib configuration and rely on existence of all
190 interface routes in every fib, you need to set the above sysctl to 1.
193 The internal pre-processor in the calendar(1) program has been
194 extended to support more C pre-processor commands (e.g. #ifdef, #else,
195 and #undef) and to detect unbalanced conditional statements.
196 Error messages have been extended to include the filename and line
197 number if processing stops to help fixing malformed data files.
200 All the data files for the calendar(1) program, except calendar.freebsd,
201 have been moved to the deskutils/calendar-data port, much like the
202 jewish calendar entries were moved to deskutils/hebcal years ago. After
203 make delete-old-files, you need to install it to retain full
204 functionality. calendar(1) will issue a reminder for files it can't
208 LINT files are no longer generated. We now include the relevant NOTES
209 files. Note: This may cause conflicts with updating in some cases.
210 find sys -name LINT\* -delete
211 is suggested across this commit to remove the generated LINT files.
213 If you have tried to update with generated files there, the svn
214 command you want to un-auger the tree is
217 and then do the above find from the top level. Substitute 'amd64'
218 above with where the error message indicates a conflict.
221 OpenZFS support has been integrated. Do not upgrade root pools until
222 the loader is updated to support zstd. Furthermore, we caution against
223 'zpool upgrade' for the next few weeks. The change should be transparent
224 unless you want to use new features.
226 Not all "NO_CLEAN" build scenarios work across these changes. Many
227 scenarios have been tested and fixed, but rebuilding kernels without
228 rebuilding world may fail.
230 The ZFS cache file has moved from /boot to /etc to match the OpenZFS
231 upstream default. A fallback to /boot has been added for mountroot.
233 Pool auto import behavior at boot has been moved from the kernel module
234 to an explicit "zpool import -a" in one of the rc scripts enabled by
235 zfs_enable=YES. This means your non-root zpools won't auto import until
236 you upgrade your /etc/rc.d files.
239 The resume code now notifies devd with the 'kernel' system
240 rather than the old 'kern' subsystem to be consistent with
241 other use. The old notification will be created as well, but
242 will be removed prior to FreeBSD 14.0.
245 r362275 changed the internal API between the kernel RPC and the
246 NFS modules. As such, all the modules must be recompiled from
250 r364330 modified the internal API used between the NFS modules.
251 As such, all the NFS modules must be re-compiled from sources.
254 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
255 been upgraded to 11.0.0. Please see the 20141231 entry below for
256 information about prerequisites and upgrading, if you are not already
257 using clang 3.5.0 or higher.
260 r364092 modified the internal ABI used between the kernel NFS
261 modules. As such, all of these modules need to be rebuilt
262 from sources, so a version bump was done.
265 Makefile.inc has been updated to work around the issue documented in
266 20200729. It was a case where the optimization of using symbolic links
267 to point to binaries created a situation where we'd run new binaries
268 with old libraries starting midway through the installworld process.
271 r363679 has redefined some undefined behavior in regcomp(3); notably,
272 extraneous escapes of most ordinary characters will no longer be
273 accepted. An exp-run has identified all of the problems with this in
274 ports, but other non-ports software may need extra escapes removed to
275 continue to function.
277 Because of this change, installworld may encounter the following error
278 from rtld: Undefined symbol "regcomp@FBSD_1.6" -- It is imperative that
279 you do not halt installworld. Instead, let it run to completion (whether
280 successful or not) and run installworld once more.
283 A new implementation of bc and dc has been imported in r362681. This
284 implementation corrects non-conformant behavior of the previous bc
285 and adds GNU bc compatible options. It offers a number of extensions,
286 is much faster on large values, and has support for message catalogs
287 (a number of languages are already supported, contributions of further
288 languages welcome). The option WITHOUT_GH_BC can be used to build the
289 world with the previous versions of bc and dc.
292 r362639 changed the internal API used between the NFS kernel modules.
293 As such, they all need to be rebuilt from sources.
296 r362158 changed the arguments for VFS_CHECKEXP(). As such, any
297 out of tree file systems need to be modified and rebuilt.
298 Also, any file systems that are modules must be rebuilt.
301 read(2) of a directory fd is now rejected by default. root may
302 re-enable it for system root only on non-ZFS filesystems with the
303 security.bsd.allow_read_dir sysctl(8) MIB if
304 security.bsd.suser_enabled=1.
306 It may be advised to setup aliases for grep to default to `-d skip` if
307 commonly non-recursively grepping a list that includes directories and
308 the potential for the resulting stderr output is not tolerable. Example
309 aliases are now installed, commented out, in /root/.cshrc and
313 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
314 been upgraded to 10.0.1. Please see the 20141231 entry below for
315 information about prerequisites and upgrading, if you are not already
316 using clang 3.5.0 or higher.
319 Support for obsolete compilers has been removed from the build system.
320 Clang 6 and GCC 6.4 are the minimum supported versions.
323 closefrom(2) has been moved under COMPAT12, and replaced in libc with a
324 stub that calls close_range(2). If using a custom kernel configuration,
325 you may want to ensure that the COMPAT_FREEBSD12 option is included, as
326 a slightly older -CURRENT userland and older FreeBSD userlands may not
327 be functional without closefrom(2).
330 Upstream DTS from Linux 5.6 was merged and they now have the SID
331 and THS (Secure ID controller and THermal Sensor) node present.
332 The DTB overlays have now been removed from the tree for the H3/H5 and
333 A64 SoCs and the aw_sid and aw_thermal driver have been updated to
334 deal with upstream DTS. If you are using those overlays you need to
335 remove them from loader.conf and update the DTBs on the FAT partition.
338 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
339 been upgraded to 10.0.0. Please see the 20141231 entry below for
340 information about prerequisites and upgrading, if you are not already
341 using clang 3.5.0 or higher.
344 The amd(8) automount daemon has been removed from the source tree.
345 As of FreeBSD 10.1 autofs(5) is the preferred tool for automounting.
346 amd is still available in the sysutils/am-utils port.
349 Removed brooktree driver (bktr.4) from the tree.
352 The WITH_GPL_DTC option has been removed. The BSD-licenced device tree
353 compiler in usr.bin/dtc is used on all architectures which use dtc, and
354 the GPL dtc is available (if needed) from the sysutils/dtc port.
357 The WITHOUT_LLVM_LIBUNWIND option has been removed. LLVM's libunwind
358 is used by all supported CPU architectures.
361 GCC 4.2.1 has been removed from the tree. The WITH_GCC,
362 WITH_GCC_BOOTSTRAP, and WITH_GNUCXX options are no longer available.
363 Users who wish to build FreeBSD with GCC must use the external toolchain
367 ncurses has been updated to a newer version (6.2-20200215). Given the ABI
368 has changed, users will have to rebuild all the ports that are linked to
372 The size of struct vnet and the magic cookie have changed.
373 Users need to recompile libkvm and all modules using VIMAGE
374 together with their new kernel.
377 Defining the long deprecated NO_CTF, NO_DEBUG_FILES, NO_INSTALLLIB,
378 NO_MAN, NO_PROFILE, and NO_WARNS variables is now an error. Update
379 your Makefiles and scripts to define MK_<var>=no instead as required.
381 One exception to this is that program or library Makefiles should
382 define MAN to empty rather than setting MK_MAN=no.
385 Clang/LLVM is now the default compiler and LLD the default
389 make universe no longer uses GCC 4.2.1 on any architectures.
390 Architectures not supported by in-tree Clang/LLVM require an
391 external toolchain package.
394 GCC 4.2.1 is now not built by default, as part of the GCC 4.2.1
395 retirement plan. Specifically, the GCC, GCC_BOOTSTRAP, and GNUCXX
396 options default to off for all supported CPU architectures. As a
397 short-term transition aid they may be enabled via WITH_* options.
398 GCC 4.2.1 is expected to be removed from the tree on 2020-03-31.
401 Support for armv5 has been disconnected and is being removed. The
402 machine combination MACHINE=arm MACHINE_ARCH=arm is no longer valid.
403 You must now use a MACHINE_ARCH of armv6 or armv7. The default
404 MACHINE_ARCH for MACHINE=arm is now armv7.
407 Clang/LLVM is now the default compiler for all powerpc architectures.
408 LLD is now the default linker for powerpc64. The change for powerpc64
409 also includes a change to the ELFv2 ABI, incompatible with the existing
413 Kernel-loadable random(4) modules are no longer unloadable.
416 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
417 been upgraded to 9.0.1. Please see the 20141231 entry below for
418 information about prerequisites and upgrading, if you are not already
419 using clang 3.5.0 or higher.
422 r355677 has modified the internal interface used between the
423 NFS modules in the kernel. As such, they must all be upgraded
424 simultaneously. I will do a version bump for this.
427 The root certificates of the Mozilla CA Certificate Store have been
428 imported into the base system and can be managed with the certctl(8)
429 utility. If you have installed the security/ca_root_nss port or package
430 with the ETCSYMLINK option (the default), be advised that there may be
431 differences between those included in the port and those included in
432 base due to differences in nss branch used as well as general update
433 frequency. Note also that certctl(8) cannot manage certs in the
434 format used by the security/ca_root_nss port.
437 The amd(8) automount daemon has been disabled by default, and will be
438 removed in the future. As of FreeBSD 10.1 the autofs(5) is available
442 The nctgpio and wbwd drivers have been moved to the superio bus.
443 If you have one of these drivers in a kernel configuration, then
444 you should add device superio to it. If you use one of these drivers
445 as a module and you compile a custom set of modules, then you should
446 add superio to the set.
449 KPIs for network drivers to access interface addresses have changed.
450 Users need to recompile NIC driver modules together with kernel.
453 The net.link.tap.user_open sysctl no longer prevents user opening of
454 already created /dev/tapNN devices. Access is still controlled by
455 node permissions, just like tun devices. The net.link.tap.user_open
456 sysctl is now used only to allow users to perform devfs cloning of
457 tap devices, and the subsequent open may not succeed if the user is not
458 in the appropriate group. This sysctl may be deprecated/removed
459 completely in the future.
462 mips, powerpc, and sparc64 are no longer built as part of
463 universe / tinderbox unless MAKE_OBSOLETE_GCC is defined. If
464 not defined, mips, powerpc, and sparc64 builds will look for
465 the xtoolchain binaries and if installed use them for universe
466 builds. As llvm 9.0 becomes vetted for these architectures, they
467 will be removed from the list.
470 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
471 been upgraded to 9.0.0. Please see the 20141231 entry below for
472 information about prerequisites and upgrading, if you are not already
473 using clang 3.5.0 or higher.
476 The hpt27xx, hptmv, hptnr, and hptrr drivers have been removed from
477 GENERIC. They are available as modules and can be loaded by adding
478 to /boot/loader.conf hpt27xx_load="YES", hptmv_load="YES",
479 hptnr_load="YES", or hptrr_load="YES", respectively.
482 ntpd no longer by default locks its pages in memory, allowing them
483 to be paged out by the kernel. Use rlimit memlock to restore
484 historic BSD behaviour. For example, add "rlimit memlock 32"
485 to ntp.conf to lock up to 32 MB of ntpd address space in memory.
488 Several of ping6's options have been renamed for better consistency
489 with ping. If you use any of -ARWXaghmrtwx, you must update your
490 scripts. See ping6(8) for details.
493 The vfs.fusefs.sync_unmount and vfs.fusefs.init_backgrounded sysctls
494 and the "-o sync_unmount" and "-o init_backgrounded" mount options have
495 been removed from mount_fusefs(8). You can safely remove them from
496 your scripts, because they had no effect.
498 The vfs.fusefs.fix_broken_io, vfs.fusefs.sync_resize,
499 vfs.fusefs.refresh_size, vfs.fusefs.mmap_enable,
500 vfs.fusefs.reclaim_revoked, and vfs.fusefs.data_cache_invalidate
501 sysctls have been removed. If you felt the need to set any of them to
502 a non-default value, please tell asomers@FreeBSD.org why.
505 Default permissions on the /var/account/acct file (and copies of it
506 rotated by periodic daily scripts) are changed from 0644 to 0640
507 because the file contains sensitive information that should not be
508 world-readable. If the /var/account directory must be created by
509 rc.d/accounting, the mode used is now 0750. Admins who use the
510 accounting feature are encouraged to change the mode of an existing
511 /var/account directory to 0750 or 0700.
514 Entropy collection and the /dev/random device are no longer optional
515 components. The "device random" option has been removed.
516 Implementations of distilling algorithms can still be made loadable
517 with "options RANDOM_LOADABLE" (e.g., random_fortuna.ko).
520 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
521 been upgraded to 8.0.1. Please see the 20141231 entry below for
522 information about prerequisites and upgrading, if you are not already
523 using clang 3.5.0 or higher.
526 A fix was applied to i386 kernel modules to avoid panics with
527 dpcpu or vnet. Users need to recompile i386 kernel modules
528 having pcpu or vnet sections or they will refuse to load.
531 User-wired pages now have their own counter,
532 vm.stats.vm.v_user_wire_count. The vm.max_wired sysctl was renamed
533 to vm.max_user_wired and changed from an unsigned int to an unsigned
534 long. bhyve VMs wired with the -S are now subject to the user
535 wiring limit; the vm.max_user_wired sysctl may need to be tuned to
536 avoid running into the limit.
539 The IPSEC option has been removed from GENERIC. Users requiring
540 ipsec(4) must now load the ipsec(4) kernel module.
543 The tap(4) driver has been folded into tun(4), and the module has been
544 renamed to tuntap. You should update any kld_list="if_tap" or
545 kld_list="if_tun" entries in /etc/rc.conf, if_tap_load="YES" or
546 if_tun_load="YES" entries in /boot/loader.conf to load the if_tuntap
547 module instead, and "device tap" or "device tun" entries in kernel
548 config files to select the tuntap device instead.
551 The following knobs have been added related to tradeoffs between
552 safe use of the random device and availability in the absence of
555 kern.random.initial_seeding.bypass_before_seeding: tunable; set
556 non-zero to bypass the random device prior to seeding, or zero to
557 block random requests until the random device is initially seeded.
558 For now, set to 1 (unsafe) by default to restore pre-r346250 boot
559 availability properties.
561 kern.random.initial_seeding.read_random_bypassed_before_seeding:
562 read-only diagnostic sysctl that is set when bypass is enabled and
563 read_random(9) is bypassed, to enable programmatic handling of this
564 initial condition, if desired.
566 kern.random.initial_seeding.arc4random_bypassed_before_seeding:
567 Similar to the above, but for for arc4random(9) initial seeding.
569 kern.random.initial_seeding.disable_bypass_warnings: tunable; set
570 non-zero to disable warnings in dmesg when the same conditions are
571 met as for the diagnostic sysctls above. Defaults to zero, i.e.,
572 produce warnings in dmesg when the conditions are met.
575 The loadable random module KPI has changed; the random_infra_init()
576 routine now requires a 3rd function pointer for a bool (*)(void)
577 method that returns true if the random device is seeded (and
578 therefore unblocked).
581 r345895 reverts r320698. This implies that an nfsuserd(8) daemon
582 built from head sources between r320757 (July 6, 2017) and
583 r338192 (Aug. 22, 2018) will not work unless the "-use-udpsock"
584 is added to the command line.
585 nfsuserd daemons built from head sources that are post-r338192 are
586 not affected and should continue to work.
589 The fuse(4) module has been renamed to fusefs(4) for consistency with
590 other filesystems. You should update any kld_load="fuse" entries in
591 /etc/rc.conf, fuse_load="YES" entries in /boot/loader.conf, and
592 "options FUSE" entries in kernel config files.
595 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
596 8.0.0. Please see the 20141231 entry below for information about
597 prerequisites and upgrading, if you are not already using clang 3.5.0
601 geom_uzip(4) depends on the new module xz. If geom_uzip is statically
602 compiled into your custom kernel, add 'device xz' statement to the
606 drm and drm2 have been removed from the tree. Please see
607 https://wiki.freebsd.org/Graphics for the latest information on
608 migrating to the drm ports.
611 Iflib is no longer unconditionally compiled into the kernel. Drivers
612 using iflib and statically compiled into the kernel, now require
613 the 'device iflib' config option. For the same drivers loaded as
614 modules on kernels not having 'device iflib', the iflib.ko module
615 is loaded automatically.
618 The IEEE80211_AMPDU_AGE and AH_SUPPORT_AR5416 kernel configuration
619 options no longer exist since r343219 and r343427 respectively;
620 nothing uses them, so they should be just removed from custom
624 r342635 changes the way efibootmgr(8) works by requiring users to add
625 the -b (bootnum) parameter for commands where the bootnum was previously
626 specified with each option. For example 'efibootmgr -B 0001' is now
627 'efibootmgr -B -b 0001'.
630 r342286 modifies the NFSv4 server so that it obeys vfs.nfsd.nfs_privport
631 in the same as it is applied to NFSv2 and 3. This implies that NFSv4
632 servers that have vfs.nfsd.nfs_privport set will only allow mounts
633 from clients using a reserved port. Since both the FreeBSD and Linux
634 NFSv4 clients use reserved ports by default, this should not affect
638 The XLP config has been removed. We can't support 64-bit atomics in this
639 kernel because it is running in 32-bit mode. XLP users must transition
640 to running a 64-bit kernel (XLP64 or XLPN32).
642 The mips GXEMUL support has been removed from FreeBSD. MALTA* + qemu is
643 the preferred emulator today and we don't need two different ones.
645 The old sibyte / swarm / Broadcom BCM1250 support has been
646 removed from the mips port.
649 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
650 7.0.1. Please see the 20141231 entry below for information about
651 prerequisites and upgrading, if you are not already using clang 3.5.0
655 Remove the timed and netdate programs from the base tree. Setting
656 the time with these daemons has been obsolete for over a decade.
659 On amd64, arm64 and armv7 (architectures that install LLVM's ld.lld
660 linker as /usr/bin/ld) GNU ld is no longer installed as ld.bfd, as
661 it produces broken binaries when ifuncs are in use. Users needing
662 GNU ld should install the binutils port or package.
665 The BSD crtbegin and crtend code has been enabled by default. It has
666 had extensive testing on amd64, arm64, and i386. It can be disabled
667 by building a world with -DWITHOUT_BSD_CRTBEGIN.
670 The set of CTM commands (ctm, ctm_smail, ctm_rmail, ctm_dequeue)
671 has been converted to a port (misc/ctm) and will be removed from
672 FreeBSD-13. It is available as a package (ctm) for all supported
676 The default newsyslog.conf(5) file has been changed to only include
677 files in /etc/newsyslog.conf.d/ and /usr/local/etc/newsyslog.conf.d/ if
678 the filenames end in '.conf' and do not begin with a '.'.
680 You should check the configuration files in these two directories match
681 this naming convention. You can verify which configuration files are
682 being included using the command:
686 Ports for the DRM modules have been simplified. Now, amd64 users should
687 just install the drm-kmod port. All others should install
690 Graphics hardware that's newer than about 2010 usually works with
691 drm-kmod. For hardware older than 2013, however, some users will need
692 to use drm-legacy-kmod if drm-kmod doesn't work for them. Hardware older
693 than 2008 usually only works in drm-legacy-kmod. The graphics team can
694 only commit to hardware made since 2013 due to the complexity of the
695 market and difficulty to test all the older cards effectively. If you
696 have hardware supported by drm-kmod, you are strongly encouraged to use
697 that as you will get better support.
699 Other than KPI chasing, drm-legacy-kmod will not be updated. As outlined
700 elsewhere, the drm and drm2 modules will be eliminated from the src base
701 soon (with a limited exception for arm). Please update to the package
702 asap and report any issues to x11@freebsd.org.
704 Generally, anybody using the drm*-kmod packages should add
705 WITHOUT_DRM_MODULE=t and WITHOUT_DRM2_MODULE=t to avoid nasty
706 cross-threading surprises, especially with automatic driver
707 loading from X11 startup. These will become the defaults in 13-current
711 The ixlv(4) driver has been renamed to iavf(4). As a consequence,
712 custom kernel and module loading configuration files must be updated
713 accordingly. Moreover, interfaces previous presented as ixlvN to the
714 system are now exposed as iavfN and network configuration files must
715 be adjusted as necessary.
718 OpenSSL has been updated to version 1.1.1. This update included
719 additional various API changes throughout the base system. It is
720 important to rebuild third-party software after upgrading. The value
721 of __FreeBSD_version has been bumped accordingly.
724 The legacy DRM modules and drivers have now been added to the loader's
725 module blacklist, in favor of loading them with kld_list in rc.conf(5).
726 The module blacklist may be overridden with the loader.conf(5)
727 'module_blacklist' variable, but loading them via rc.conf(5) is strongly
731 The cam(4) based nda(4) driver will be used over nvd(4) by default on
732 powerpc64. You may set 'options NVME_USE_NVD=1' in your kernel conf or
733 loader tunable 'hw.nvme.use_nvd=1' if you wish to use the existing
734 driver. Make sure to edit /boot/etc/kboot.conf and fstab to use the
738 Reproducible build mode is now on by default, in preparation for
739 FreeBSD 12.0. This eliminates build metadata such as the user,
740 host, and time from the kernel (and uname), unless the working tree
741 corresponds to a modified checkout from a version control system.
742 The previous behavior can be obtained by setting the /etc/src.conf
743 knob WITHOUT_REPRODUCIBLE_BUILD.
746 The Yarrow CSPRNG has been removed from the kernel as it has not been
747 supported by its designers since at least 2003. Fortuna has been the
748 default since FreeBSD-11.
751 devctl freeze/thaw have gone into the tree, the rc scripts have been
752 updated to use them and devmatch has been changed. You should update
753 kernel, userland and rc scripts all at the same time.
756 The default interpreter has been switched from 4th to Lua.
757 LOADER_DEFAULT_INTERP, documented in build(7), will override the default
758 interpreter. If you have custom FORTH code you will need to set
759 LOADER_DEFAULT_INTERP=4th (valid values are 4th, lua or simp) in
760 src.conf for the build. This will create default hard links between
761 loader and loader_4th instead of loader and loader_lua, the new default.
762 If you are using UEFI it will create the proper hard link to loader.efi.
764 bhyve uses userboot.so. It remains 4th-only until some issues are solved
765 regarding coexisting with multiple versions of FreeBSD are resolved.
768 ls(1) now respects the COLORTERM environment variable used in other
769 systems and software to indicate that a colored terminal is both
770 supported and desired. If ls(1) is suddenly emitting colors, they may
771 be disabled again by either removing the unwanted COLORTERM from your
772 environment, or using `ls --color=never`. The ls(1) specific CLICOLOR
773 may not be observed in a future release.
776 The default pager for most commands has been changed to "less". To
777 restore the old behavior, set PAGER="more" and MANPAGER="more -s" in
781 The jedec_ts(4) driver has been removed. A superset of its functionality
782 is available in the jedec_dimm(4) driver, and the manpage for that
783 driver includes migration instructions. If you have "device jedec_ts"
784 in your kernel configuration file, it must be removed.
787 amd64/GENERIC now has EFI runtime services, EFIRT, enabled by default.
788 This should have no effect if the kernel is booted via BIOS/legacy boot.
789 EFIRT may be disabled via a loader tunable, efi.rt.disabled, if a system
790 has a buggy firmware that prevents a successful boot due to use of
794 Atmel AT91RM9200 and AT91SAM9, Cavium CNS 11xx and XScale
795 support has been removed from the tree. These ports were
796 obsolete and/or known to be broken for many years.
799 loader.efi has been augmented to participate more fully in the
800 UEFI boot manager protocol. loader.efi will now look at the
801 BootXXXX environment variable to determine if a specific kernel
802 or root partition was specified. XXXX is derived from BootCurrent.
803 efibootmgr(8) manages these standard UEFI variables.
806 zfsloader's functionality has now been folded into loader.
807 zfsloader is no longer necessary once you've updated your
808 boot blocks. For a transition period, we will install a
809 hardlink for zfsloader to loader to allow a smooth transition
810 until the boot blocks can be updated (hard link because old
811 zfs boot blocks don't understand symlinks).
814 ARM64 now have efifb support, if you want to have serial console
815 on your arm64 board when an screen is connected and the bootloader
816 setup a frame buffer for us to use, just add :
820 For Raspberry Pi 3 (RPI) users, this is needed even if you don't have
821 an screen connected as the firmware will setup a frame buffer are that
822 u-boot will expose as an EFI frame buffer.
825 New uid:gid added, ntpd:ntpd (123:123). Be sure to run mergemaster
826 or take steps to update /etc/passwd before doing installworld on
827 existing systems. Do not skip the "mergemaster -Fp" step before
828 installworld, as described in the update procedures near the bottom
829 of this document. Also, rc.d/ntpd now starts ntpd(8) as user ntpd
830 if the new mac_ntpd(4) policy is available, unless ntpd_flags or
831 the ntp config file contain options that change file/dir locations.
832 When such options (e.g., "statsdir" or "crypto") are used, ntpd can
833 still be run as non-root by setting ntpd_user=ntpd in rc.conf, after
834 taking steps to ensure that all required files/dirs are accessible
838 Big endian arm support has been removed.
841 The static environment setup in kernel configs is no longer mutually
842 exclusive with the loader(8) environment by default. In order to
843 restore the previous default behavior of disabling the loader(8)
844 environment if a static environment is present, you must specify
845 loader_env.disabled=1 in the static environment.
848 The ABI of syscalls used by management tools like sockstat and
849 netstat has been broken to allow 32-bit binaries to work on
850 64-bit kernels without modification. These programs will need
851 to match the kernel in order to function. External programs may
852 require minor modifications to accommodate a change of type in
853 structures from pointers to 64-bit virtual addresses.
856 On i386 and amd64 atomics are now inlined. Out of tree modules using
857 atomics will need to be rebuilt.
860 The '%I' format in the kern.corefile sysctl limits the number of
861 core files that a process can generate to the number stored in the
862 debug.ncores sysctl. The '%I' format is replaced by the single digit
863 index. Previously, if all indexes were taken the kernel would overwrite
864 only a core file with the highest index in a filename.
865 Currently the system will create a new core file if there is a free
866 index or if all slots are taken it will overwrite the oldest one.
869 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
870 6.0.1. Please see the 20141231 entry below for information about
871 prerequisites and upgrading, if you are not already using clang 3.5.0
875 r335753 introduced a new quoting method. However, etc/devd/devmatch.conf
876 needed to be changed to work with it. This change was made with r335763
877 and requires a mergemaster / etcupdate / etc to update the installed
881 r334930 changed the interface between the NFS modules, so they all
882 need to be rebuilt. r335018 did a __FreeBSD_version bump for this.
885 As of r334391 lld is the default amd64 system linker; it is installed
886 as /usr/bin/ld. Kernel build workarounds (see 20180510 entry) are no
890 The kernel / userland interface for devinfo changed, so you'll
891 need a new kernel and userland as a pair for it to work (rebuilding
892 lib/libdevinfo is all that's required). devinfo and devmatch will
893 not work, but everything else will when there's a mismatch.
896 The on-disk format for hwpmc callchain records has changed to include
897 threadid corresponding to a given record. This changes the field offsets
898 and thus requires that libpmcstat be rebuilt before using a kernel
902 The vxge(4) driver has been removed. This driver was introduced into
903 HEAD one week before the Exar left the Ethernet market and is not
904 known to be used. If you have device vxge in your kernel config file
908 The amd64 kernel now requires a ld that supports ifunc to produce a
909 working kernel, either lld or a newer binutils. lld is built by default
910 on amd64, and the 'buildkernel' target uses it automatically. However,
911 it is not the default linker, so building the kernel the traditional
912 way requires LD=ld.lld on the command line (or LD=/usr/local/bin/ld for
913 binutils port/package). lld will soon be default, and this requirement
916 NOTE: As of r334391 lld is the default system linker on amd64, and no
917 workaround is necessary.
920 The nxge(4) driver has been removed. This driver was for PCI-X 10g
921 cards made by s2io/Neterion. The company was acquired by Exar and
922 no longer sells or supports Ethernet products. If you have device
923 nxge in your kernel config file it must be removed.
926 The tz database (tzdb) has been updated to 2018e. This version more
927 correctly models time stamps in time zones with negative DST such as
928 Europe/Dublin (from 1971 on), Europe/Prague (1946/7), and
929 Africa/Windhoek (1994/2017). This does not affect the UT offsets, only
930 time zone abbreviations and the tm_isdst flag.
933 The ixgb(4) driver has been removed. This driver was for an early and
934 uncommon legacy PCI 10GbE for a single ASIC, Intel 82597EX. Intel
935 quickly shifted to the long lived ixgbe family. If you have device
936 ixgb in your kernel config file it must be removed.
939 The lmc(4) driver has been removed. This was a WAN interface
940 card that was already reportedly rare in 2003, and had an ambiguous
941 license. If you have device lmc in your kernel config file it must
945 Support for Arcnet networks has been removed. If you have device
946 arcnet or device cm in your kernel config file they must be
950 Support for FDDI networks has been removed. If you have device
951 fddi or device fpa in your kernel config file they must be
955 In addition to supporting RFC 3164 formatted messages, the
956 syslogd(8) service is now capable of parsing RFC 5424 formatted
957 log messages. The main benefit of using RFC 5424 is that clients
958 may now send log messages with timestamps containing year numbers,
959 microseconds and time zone offsets.
961 Similarly, the syslog(3) C library function has been altered to
962 send RFC 5424 formatted messages to the local system logging
963 daemon. On systems using syslogd(8), this change should have no
964 negative impact, as long as syslogd(8) and the C library are
965 updated at the same time. On systems using a different system
966 logging daemon, it may be necessary to make configuration
967 adjustments, depending on the software used.
969 When using syslog-ng, add the 'syslog-protocol' flag to local
970 input sources to enable parsing of RFC 5424 formatted messages:
973 unix-dgram("/var/run/log" flags(syslog-protocol));
976 When using rsyslog, disable the 'SysSock.UseSpecialParser' option
977 of the 'imuxsock' module to let messages be processed by the
978 regular RFC 3164/5424 parsing pipeline:
980 module(load="imuxsock" SysSock.UseSpecialParser="off")
982 Do note that these changes only affect communication between local
983 applications and syslogd(8). The format that syslogd(8) uses to
984 store messages on disk or forward messages to other systems
985 remains unchanged. syslogd(8) still uses RFC 3164 for these
986 purposes. Options to customize this behaviour will be added in the
987 future. Utilities that process log files stored in /var/log are
988 thus expected to continue to function as before.
990 __FreeBSD_version has been incremented to 1200061 to denote this
994 Support for token ring networks has been removed. If you
995 have "device token" in your kernel config you should remove
996 it. No device drivers supported token ring.
999 makefs was modified to be able to tag ISO9660 El Torito boot catalog
1000 entries as EFI instead of overloading the i386 tag as done previously.
1001 The amd64 mkisoimages.sh script used to build amd64 ISO images for
1002 release was updated to use this. This may mean that makefs must be
1003 updated before "make cdrom" can be run in the release directory. This
1004 should be as simple as:
1006 $ cd $SRCDIR/usr.sbin/makefs
1007 $ make depend all install
1010 FreeBSD boot loader enhanced with Lua scripting. It's purely opt-in for
1011 now by building WITH_LOADER_LUA and WITHOUT_FORTH in /etc/src.conf.
1012 Co-existence for the transition period will come shortly. Booting is a
1013 complex environment and test coverage for Lua-enabled loaders has been
1014 thin, so it would be prudent to assume it might not work and make
1015 provisions for backup boot methods.
1018 devmatch functionality has been turned on in devd. It will automatically
1019 load drivers for unattached devices. This may cause unexpected drivers
1020 to be loaded. Please report any problems to current@ and
1024 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
1025 6.0.0. Please see the 20141231 entry below for information about
1026 prerequisites and upgrading, if you are not already using clang 3.5.0
1030 LLVM's lld linker is now used as the FreeBSD/amd64 bootstrap linker.
1031 This means it is used to link the kernel and userland libraries and
1032 executables, but is not yet installed as /usr/bin/ld by default.
1034 To revert to ld.bfd as the bootstrap linker, in /etc/src.conf set
1035 WITHOUT_LLD_BOOTSTRAP=yes
1038 On i386, pmtimer has been removed. Its functionality has been folded
1039 into apm. It was a no-op on ACPI in current for a while now (but was
1040 still needed on i386 in FreeBSD 11 and earlier). Users may need to
1041 remove it from kernel config files.
1044 The use of RSS hash from the network card aka flowid has been
1045 disabled by default for lagg(4) as it's currently incompatible with
1046 the lacp and loadbalance protocols.
1048 This can be re-enabled by setting the following in loader.conf:
1049 net.link.lagg.default_use_flowid="1"
1052 The SW_WATCHDOG option is no longer necessary to enable the
1053 hardclock-based software watchdog if no hardware watchdog is
1054 configured. As before, SW_WATCHDOG will cause the software
1055 watchdog to be enabled even if a hardware watchdog is configured.
1058 r326887 fixes the issue described in the 20171214 UPDATING entry.
1059 r326888 flips the switch back to building GELI support always.
1062 r362593 broke ZFS + GELI support for reasons unknown. However,
1063 it also broke ZFS support generally, so GELI has been turned off
1064 by default as the lesser evil in r326857. If you boot off ZFS and/or
1065 GELI, it might not be a good time to update.
1068 PowerPC users must update loader(8) by rebuilding world before
1069 installing a new kernel, as the protocol connecting them has
1070 changed. Without the update, loader metadata will not be passed
1071 successfully to the kernel and users will have to enter their
1072 root partition at the kernel mountroot prompt to continue booting.
1073 Newer versions of loader can boot old kernels without issue.
1076 The LOADER_FIREWIRE_SUPPORT build variable has been renamed to
1077 WITH/OUT_LOADER_FIREWIRE. LOADER_{NO_,}GELI_SUPPORT has been renamed
1078 to WITH/OUT_LOADER_GELI.
1081 The naive and non-compliant support of posix_fallocate(2) in ZFS
1082 has been removed as of r325320. The system call now returns EINVAL
1083 when used on a ZFS file. Although the new behavior complies with the
1084 standard, some consumers are not prepared to cope with it.
1085 One known victim is lld prior to r325420.
1088 Building in a FreeBSD src checkout will automatically create object
1089 directories now rather than store files in the current directory if
1090 'make obj' was not ran. Calling 'make obj' is no longer necessary.
1091 This feature can be disabled by setting WITHOUT_AUTO_OBJ=yes in
1092 /etc/src-env.conf (not /etc/src.conf), or passing the option in the
1096 The default MAKEOBJDIR has changed from /usr/obj/<srcdir> for native
1097 builds, and /usr/obj/<arch>/<srcdir> for cross-builds, to a unified
1098 /usr/obj/<srcdir>/<arch>. This behavior can be changed to the old
1099 format by setting WITHOUT_UNIFIED_OBJDIR=yes in /etc/src-env.conf,
1100 the environment, or with -DWITHOUT_UNIFIED_OBJDIR when building.
1101 The UNIFIED_OBJDIR option is a transitional feature that will be
1102 removed for 12.0 release; please migrate to the new format for any
1103 tools by looking up the OBJDIR used by 'make -V .OBJDIR' means rather
1104 than hardcoding paths.
1107 The native-xtools target no longer installs the files by default to the
1108 OBJDIR. Use the native-xtools-install target with a DESTDIR to install
1109 to ${DESTDIR}/${NXTP} where NXTP defaults to /nxb-bin.
1112 As part of the boot loader infrastructure cleanup, LOADER_*_SUPPORT
1113 options are changing from controlling the build if defined / undefined
1114 to controlling the build with explicit 'yes' or 'no' values. They will
1115 shift to WITH/WITHOUT options to match other options in the system.
1118 libstand has turned into a private library for sys/boot use only.
1119 It is no longer supported as a public interface outside of sys/boot.
1122 The arm port has split armv6 into armv6 and armv7. armv7 is now
1123 a valid TARGET_ARCH/MACHINE_ARCH setting. If you have an armv7 system
1124 and are running a kernel from before r324363, you will need to add
1125 MACHINE_ARCH=armv7 to 'make buildworld' to do a native build.
1128 When building multiple kernels using KERNCONF, non-existent KERNCONF
1129 files will produce an error and buildkernel will fail. Previously
1130 missing KERNCONF files silently failed giving no indication as to
1131 why, only to subsequently discover during installkernel that the
1132 desired kernel was never built in the first place.
1135 The default serial number format for CTL LUNs has changed. This will
1136 affect users who use /dev/diskid/* device nodes, or whose FibreChannel
1137 or iSCSI clients care about their LUNs' serial numbers. Users who
1138 require serial number stability should hardcode serial numbers in
1142 For 32-bit arm compiled for hard-float support, soft-floating point
1143 binaries now always get their shared libraries from
1144 LD_SOFT_LIBRARY_PATH (in the past, this was only used if
1145 /usr/libsoft also existed). Only users with a hard-float ld.so, but
1146 soft-float everything else should be affected.
1149 The geli password typed at boot is now hidden. To restore the previous
1150 behavior, see geli(8) for configuration options.
1153 Move PMTUD blackhole counters to TCPSTATS and remove them from bare
1154 sysctl values. Minor nit, but requires a rebuild of both world/kernel
1158 "make check" behavior (made in ^/head@r295380) has been changed to
1159 execute from a limited sandbox, as opposed to executing from
1163 - The "beforecheck" and "aftercheck" targets are now specified.
1164 - ${CHECKDIR} (added in commit noted above) has been removed.
1165 - Legacy behavior can be enabled by setting
1166 WITHOUT_MAKE_CHECK_USE_SANDBOX in src.conf(5) or the environment.
1168 If the limited sandbox mode is enabled, "make check" will execute
1169 "make distribution", then install, execute the tests, and clean up the
1170 sandbox if successful.
1172 The "make distribution" and "make install" targets are typically run as
1173 root to set appropriate permissions and ownership at installation time.
1174 The end-user should set "WITH_INSTALL_AS_USER" in src.conf(5) or the
1175 environment if executing "make check" with limited sandbox mode using
1176 an unprivileged user.
1179 Since the switch to GPT disk labels, fsck for UFS/FFS has been
1180 unable to automatically find alternate superblocks. As of r322297,
1181 the information needed to find alternate superblocks has been
1182 moved to the end of the area reserved for the boot block.
1183 Filesystems created with a newfs of this vintage or later
1184 will create the recovery information. If you have a filesystem
1185 created prior to this change and wish to have a recovery block
1186 created for your filesystem, you can do so by running fsck in
1187 foreground mode (i.e., do not use the -p or -y options). As it
1188 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS''
1189 to which you should answer yes.
1192 As of r321665, an NFSv4 server configuration that services
1193 Kerberos mounts or clients that do not support the uid/gid in
1194 owner/owner_group string capability, must explicitly enable
1195 the nfsuserd daemon by adding nfsuserd_enable="YES" to the
1196 machine's /etc/rc.conf file.
1199 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 5.0.0.
1200 Please see the 20141231 entry below for information about prerequisites
1201 and upgrading, if you are not already using clang 3.5.0 or higher.
1204 WITHOUT_RCMDS is now the default. Set WITH_RCMDS if you need the
1205 r-commands (rlogin, rsh, etc.) to be built with the base system.
1208 The FreeBSD/powerpc platform now uses a 64-bit type for time_t. This is
1209 a very major ABI incompatible change, so users of FreeBSD/powerpc must
1210 be careful when performing source upgrades. It is best to run
1211 'make installworld' from an alternate root system, either a live
1212 CD/memory stick, or a temporary root partition. Additionally, all ports
1213 must be recompiled. powerpc64 is largely unaffected, except in the case
1214 of 32-bit compatibility. All 32-bit binaries will be affected.
1217 Forward compatibility for the "ino64" project have been committed. This
1218 will allow most new binaries to run on older kernels in a limited
1219 fashion. This prevents many of the common foot-shooting actions in the
1220 upgrade as well as the limited ability to roll back the kernel across
1221 the ino64 upgrade. Complicated use cases may not work properly, though
1222 enough simpler ones work to allow recovery in most situations.
1225 Switch back to the BSDL dtc (Device Tree Compiler). Set WITH_GPL_DTC
1226 if you require the GPL compiler.
1229 The internal ABI used for communication between the NFS kernel modules
1230 was changed by r320085, so __FreeBSD_version was bumped to
1231 ensure all the NFS related modules are updated together.
1234 The ABI of struct event was changed by extending the data
1235 member to 64bit and adding ext fields. For upgrade, same
1236 precautions as for the entry 20170523 "ino64" must be
1240 The GNU roff toolchain has been removed from base. To render manpages
1241 which are not supported by mandoc(1), man(1) can fallback on GNU roff
1242 from ports (and recommends to install it).
1243 To render roff(7) documents, consider using GNU roff from ports or the
1244 heirloom doctools roff toolchain from ports via pkg install groff or
1245 via pkg install heirloom-doctools.
1248 The ath(4) and ath_hal(4) modules now build piecemeal to allow for
1249 smaller runtime footprint builds. This is useful for embedded systems
1250 which only require one chipset support.
1252 If you load it as a module, make sure this is in /boot/loader.conf:
1256 This will load the HAL, all chip/RF backends and if_ath_pci.
1257 If you have if_ath_pci in /boot/loader.conf, ensure it is after
1258 if_ath or it will not load any HAL chipset support.
1260 If you want to selectively load things (eg on cheaper ARM/MIPS
1261 platforms where RAM is at a premium) you should:
1264 * load the chip modules in question
1265 * load ath_rate, ath_dfs
1267 * load if_ath_pci and/or if_ath_ahb depending upon your particular
1268 bus bind type - this is where probe/attach is done.
1270 For further comments/feedback, poke adrian@ .
1273 The "ino64" 64-bit inode project has been committed, which extends
1274 a number of types to 64 bits. Upgrading in place requires care and
1275 adherence to the documented upgrade procedure.
1277 If using a custom kernel configuration ensure that the
1278 COMPAT_FREEBSD11 option is included (as during the upgrade the
1279 system will be running the ino64 kernel with the existing world).
1281 For the safest in-place upgrade begin by removing previous build
1282 artifacts via "rm -rf /usr/obj/*". Then, carefully follow the full
1283 procedure documented below under the heading "To rebuild everything and
1284 install it on the current system." Specifically, a reboot is required
1285 after installing the new kernel before installing world. While an
1286 installworld normally works by accident from multiuser after rebooting
1287 the proper kernel, there are many cases where this will fail across this
1288 upgrade and installworld from single user is required.
1291 The NATM framework including the en(4), fatm(4), hatm(4), and
1292 patm(4) devices has been removed. Consumers should plan a
1293 migration before the end-of-life date for FreeBSD 11.
1296 GNU diff has been replaced by a BSD licensed diff. Some features of GNU
1297 diff has not been implemented, if those are needed a newer version of
1298 GNU diff is available via the diffutils package under the gdiff name.
1301 As of r316810 for ipfilter, keep frags is no longer assumed when
1302 keep state is specified in a rule. r316810 aligns ipfilter with
1303 documentation in man pages separating keep frags from keep state.
1304 This allows keep state to be specified without forcing keep frags
1305 and allows keep frags to be specified independently of keep state.
1306 To maintain previous behaviour, also specify keep frags with
1307 keep state (as documented in ipf.conf.5).
1310 arm64 builds now use the base system LLD 4.0.0 linker by default,
1311 instead of requiring that the aarch64-binutils port or package be
1312 installed. To continue using aarch64-binutils, set
1313 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin .
1316 The UDP optimization in entry 20160818 that added the sysctl
1317 net.inet.udp.require_l2_bcast has been reverted. L2 broadcast
1318 packets will no longer be treated as L3 broadcast packets.
1321 Binds and sends to the loopback addresses, IPv6 and IPv4, will now
1322 use any explicitly assigned loopback address available in the jail
1323 instead of using the first assigned address of the jail.
1326 The ctl.ko module no longer implements the iSCSI target frontend:
1327 cfiscsi.ko does instead.
1329 If building cfiscsi.ko as a kernel module, the module can be loaded
1330 via one of the following methods:
1331 - `cfiscsi_load="YES"` in loader.conf(5).
1332 - Add `cfiscsi` to `$kld_list` in rc.conf(5).
1333 - ctladm(8)/ctld(8), when compiled with iSCSI support
1334 (`WITH_ISCSI=yes` in src.conf(5))
1336 Please see cfiscsi(4) for more details.
1339 The mmcsd.ko module now additionally depends on geom_flashmap.ko.
1340 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the
1341 same source (previously, the dependency of mmcsd.ko on mmc.ko was
1342 missing, but mmcsd.ko now will refuse to load if it is incompatible
1346 The syntax of ipfw(8) named states was changed to avoid ambiguity.
1347 If you have used named states in the firewall rules, you need to modify
1348 them after installworld and before rebooting. Now named states must
1349 be prefixed with colon.
1352 The old drm (sys/dev/drm/) drivers for i915 and radeon have been
1353 removed as the userland we provide cannot use them. The KMS version
1354 (sys/dev/drm2) supports the same hardware.
1357 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0.
1358 Please see the 20141231 entry below for information about prerequisites
1359 and upgrading, if you are not already using clang 3.5.0 or higher.
1362 The code that provides support for ZFS .zfs/ directory functionality
1363 has been reimplemented. It's not possible now to create a snapshot
1364 by mkdir under .zfs/snapshot/. That should be the only user visible
1368 EISA bus support has been removed. The WITH_EISA option is no longer
1372 MCA bus support has been removed.
1375 The WITH_LLD_AS_LD / WITHOUT_LLD_AS_LD build knobs have been renamed
1376 WITH_LLD_IS_LD / WITHOUT_LLD_IS_LD, for consistency with CLANG_IS_CC.
1379 The EM_MULTIQUEUE kernel configuration option is deprecated now that
1380 the em(4) driver conforms to iflib specifications.
1383 The igb(4), em(4) and lem(4) ethernet drivers are now implemented via
1384 IFLIB. If you have a custom kernel configuration that excludes em(4)
1385 but you use igb(4), you need to re-add em(4) to your custom
1389 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1.
1390 Please see the 20141231 entry below for information about prerequisites
1391 and upgrading, if you are not already using clang 3.5.0 or higher.
1394 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0.
1395 Please see the 20141231 entry below for information about prerequisites
1396 and upgrading, if you are not already using clang 3.5.0 or higher.
1399 The layout of the pmap structure has changed for powerpc to put the pmap
1400 statistics at the front for all CPU variations. libkvm(3) and all tools
1401 that link against it need to be recompiled.
1404 isl(4) and cyapa(4) drivers now require a new driver,
1405 chromebook_platform(4), to work properly on Chromebook-class hardware.
1406 On other types of hardware the drivers may need to be configured using
1407 device hints. Please see the corresponding manual pages for details.
1410 The urtwn(4) driver was merged into rtwn(4) and now consists of
1411 rtwn(4) main module + rtwn_usb(4) and rtwn_pci(4) bus-specific
1413 Also, firmware for RTL8188CE was renamed due to possible name
1414 conflict (rtwnrtl8192cU(B) -> rtwnrtl8192cE(B))
1417 GNU rcs has been removed from base. It is available as packages:
1418 - rcs: Latest GPLv3 GNU rcs version.
1419 - rcs57: Copy of the latest version of GNU rcs (GPLv2) before it was
1423 Use of the cc_cdg, cc_chd, cc_hd, or cc_vegas congestion control
1424 modules now requires that the kernel configuration contain the
1425 TCP_HHOOK option. (This option is included in the GENERIC kernel.)
1428 The WITHOUT_ELFCOPY_AS_OBJCOPY src.conf(5) knob has been retired.
1429 ELF Tool Chain's elfcopy is always installed as /usr/bin/objcopy.
1432 Relocatable object files with the extension of .So have been renamed
1433 to use an extension of .pico instead. The purpose of this change is
1434 to avoid a name clash with shared libraries on case-insensitive file
1435 systems. On those file systems, foo.So is the same file as foo.so.
1438 GNU rcs has been turned off by default. It can (temporarily) be built
1439 again by adding WITH_RCS knob in src.conf.
1440 Otherwise, GNU rcs is available from packages:
1441 - rcs: Latest GPLv3 GNU rcs version.
1442 - rcs57: Copy of the latest version of GNU rcs (GPLv2) from base.
1445 The backup_uses_rcs functionality has been removed from rc.subr.
1448 The queue(3) debugging macro, QUEUE_MACRO_DEBUG, has been split into
1449 two separate components, QUEUE_MACRO_DEBUG_TRACE and
1450 QUEUE_MACRO_DEBUG_TRASH. Define both for the original
1451 QUEUE_MACRO_DEBUG behavior.
1454 r304787 changed some ioctl interfaces between the iSCSI userspace
1455 programs and the kernel. ctladm, ctld, iscsictl, and iscsid must be
1456 rebuilt to work with new kernels. __FreeBSD_version has been bumped
1460 The UDP receive code has been updated to only treat incoming UDP
1461 packets that were addressed to an L2 broadcast address as L3
1462 broadcast packets. It is not expected that this will affect any
1463 standards-conforming UDP application. The new behaviour can be
1464 disabled by setting the sysctl net.inet.udp.require_l2_bcast to
1468 Remove the openbsd_poll system call.
1469 __FreeBSD_version has been bumped because of this.
1472 The stable/11 branch has been created from head@r302406.
1475 The libc stub for the pipe(2) system call has been replaced with
1476 a wrapper that calls the pipe2(2) system call and the pipe(2)
1477 system call is now only implemented by the kernels that include
1478 "options COMPAT_FREEBSD10" in their config file (this is the
1479 default). Users should ensure that this option is enabled in
1480 their kernel or upgrade userspace to r302092 before upgrading their
1484 CAM now strips the leading spaces from each SCSI disk's serial number.
1485 This will affect users who create UFS filesystems on SCSI disks using
1486 those disk's diskid device nodes. For example, if /etc/fstab
1487 previously contained a line like
1488 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should
1489 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom
1490 transforms like gmirror may also be affected. ZFS users should
1494 The bitstring(3) API has been updated with new functionality and
1495 improved performance. But it is binary-incompatible with the old API.
1496 Objects built with the new headers may not be linked against objects
1497 built with the old headers.
1500 The brk and sbrk functions have been removed from libc on arm64.
1501 Binutils from ports has been updated to not link to these
1502 functions and should be updated to the latest version before
1503 installing a new libc.
1506 The armv6 port now defaults to hard float ABI. Limited support
1507 for running both hardfloat and soft float on the same system
1508 is available using the libraries installed with -DWITH_LIBSOFT.
1509 This has only been tested as an upgrade path for installworld
1510 and packages may fail or need manual intervention to run. New
1511 packages will be needed.
1513 To update an existing self-hosted armv6hf system, you must add
1514 TARGET_ARCH=armv6 on the make command line for both the build
1515 and the install steps.
1518 Kernel modules compiled outside of a kernel build now default to
1519 installing to /boot/modules instead of /boot/kernel. Many kernel
1520 modules built this way (such as those in ports) already overrode
1521 KMODDIR explicitly to install into /boot/modules. However,
1522 manually building and installing a module from /sys/modules will
1523 now install to /boot/modules instead of /boot/kernel.
1526 The CAM I/O scheduler has been committed to the kernel. There should be
1527 no user visible impact. This does enable NCQ Trim on ada SSDs. While the
1528 list of known rogues that claim support for this but actually corrupt
1529 data is believed to be complete, be on the lookout for data
1530 corruption. The known rogue list is believed to be complete:
1532 o Crucial MX100, M550 drives with MU01 firmware.
1533 o Micron M510 and M550 drives with MU01 firmware.
1534 o Micron M500 prior to MU07 firmware
1535 o Samsung 830, 840, and 850 all firmwares
1536 o FCCT M500 all firmwares
1538 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware
1539 with working NCQ TRIM. For Micron branded drives, see your sales rep for
1540 updated firmware. Black listed drives will work correctly because these
1541 drives work correctly so long as no NCQ TRIMs are sent to them. Given
1542 this list is the same as found in Linux, it's believed there are no
1543 other rogues in the market place. All other models from the above
1546 To be safe, if you are at all concerned, you can quirk each of your
1547 drives to prevent NCQ from being sent by setting:
1548 kern.cam.ada.X.quirks="0x2"
1549 in loader.conf. If the drive requires the 4k sector quirk, set the
1550 quirks entry to 0x3.
1553 The FAST_DEPEND build option has been removed and its functionality is
1554 now the one true way. The old mkdep(1) style of 'make depend' has
1555 been removed. See 20160311 for further details.
1558 Resource range types have grown from unsigned long to uintmax_t. All
1559 drivers, and anything using libdevinfo, need to be recompiled.
1562 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree
1563 builds. It no longer runs mkdep(1) during 'make depend', and the
1564 'make depend' stage can safely be skipped now as it is auto ran
1565 when building 'make all' and will generate all SRCS and DPSRCS before
1566 building anything else. Dependencies are gathered at compile time with
1567 -MF flags kept in separate .depend files per object file. Users should
1568 run 'make cleandepend' once if using -DNO_CLEAN to clean out older
1569 stale .depend files.
1572 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into
1573 kernel modules. Therefore, if you load any kernel modules at boot time,
1574 please install the boot loaders after you install the kernel, but before
1578 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1579 make installkernel KERNCONF=YOUR_KERNEL_HERE
1580 make -C sys/boot install
1581 <reboot in single user>
1583 Then follow the usual steps, described in the General Notes section,
1587 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please
1588 see the 20141231 entry below for information about prerequisites and
1589 upgrading, if you are not already using clang 3.5.0 or higher.
1592 The AIO subsystem is now a standard part of the kernel. The
1593 VFS_AIO kernel option and aio.ko kernel module have been removed.
1594 Due to stability concerns, asynchronous I/O requests are only
1595 permitted on sockets and raw disks by default. To enable
1596 asynchronous I/O requests on all file types, set the
1597 vfs.aio.enable_unsafe sysctl to a non-zero value.
1600 The ELF object manipulation tool objcopy is now provided by the
1601 ELF Tool Chain project rather than by GNU binutils. It should be a
1602 drop-in replacement, with the addition of arm64 support. The
1603 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set
1604 to obtain the GNU version if necessary.
1607 Building ZFS pools on top of zvols is prohibited by default. That
1608 feature has never worked safely; it's always been prone to deadlocks.
1609 Using a zvol as the backing store for a VM guest's virtual disk will
1610 still work, even if the guest is using ZFS. Legacy behavior can be
1611 restored by setting vfs.zfs.vol.recursive=1.
1614 The NONE and HPN patches has been removed from OpenSSH. They are
1615 still available in the security/openssh-portable port.
1618 With the addition of ypldap(8), a new _ypldap user is now required
1619 during installworld. "mergemaster -p" can be used to add the user
1620 prior to installworld, as documented in the handbook.
1623 The tftp loader (pxeboot) now uses the option root-path directive. As a
1624 consequence it no longer looks for a pxeboot.4th file on the tftp
1625 server. Instead it uses the regular /boot infrastructure as with the
1629 The code to start recording plug and play data into the modules has
1630 been committed. While the old tools will properly build a new kernel,
1631 a number of warnings about "unknown metadata record 4" will be produced
1632 for an older kldxref. To avoid such warnings, make sure to rebuild
1633 the kernel toolchain (or world). Make sure that you have r292078 or
1634 later when trying to build 292077 or later before rebuilding.
1637 Debug data files are now built by default with 'make buildworld' and
1638 installed with 'make installworld'. This facilitates debugging but
1639 requires more disk space both during the build and for the installed
1640 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes
1644 r291527 changed the internal interface between the nfsd.ko and
1645 nfscommon.ko modules. As such, they must both be upgraded to-gether.
1646 __FreeBSD_version has been bumped because of this.
1649 Add support for unicode collation strings leads to a change of
1650 order of files listed by ls(1) for example. To get back to the old
1651 behaviour, set LC_COLLATE environment variable to "C".
1653 Databases administrators will need to reindex their databases given
1654 collation results will be different.
1656 Due to a bug in install(1) it is recommended to remove the ancient
1657 locales before running make installworld.
1659 rm -rf /usr/share/locale/*
1662 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring
1663 libcrypto.so.7 or libssl.so.7 must be recompiled.
1666 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0.
1667 Kernel modules isp_2400_multi and isp_2500_multi were removed and
1668 should be replaced with isp_2400 and isp_2500 modules respectively.
1671 The build previously allowed using 'make -n' to not recurse into
1672 sub-directories while showing what commands would be executed, and
1673 'make -n -n' to recursively show commands. Now 'make -n' will recurse
1674 and 'make -N' will not.
1677 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster
1678 and etcupdate will now use this file. A custom sendmail.cf is now
1679 updated via this mechanism rather than via installworld. If you had
1680 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may
1681 want to remove the exclusion or change it to "always install".
1682 /etc/mail/sendmail.cf is now managed the same way regardless of
1683 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using
1684 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior.
1687 Compatibility shims for legacy ATA device names have been removed.
1688 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases
1689 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.*
1690 environment variables, /dev/ad* and /dev/ar* symbolic links.
1693 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0.
1694 Please see the 20141231 entry below for information about prerequisites
1695 and upgrading, if you are not already using clang 3.5.0 or higher.
1698 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/,
1699 and renamed from .symbols to .debug. This reduces the size requirements
1700 on the boot partition or file system and provides consistency with
1701 userland debug files.
1703 When using the supported kernel installation method the
1704 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old)
1705 as is done with /boot/kernel.
1707 Developers wishing to maintain the historical behavior of installing
1708 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5).
1711 The wireless drivers had undergone changes that remove the 'parent
1712 interface' from the ifconfig -l output. The rc.d network scripts
1713 used to check presence of a parent interface in the list, so old
1714 scripts would fail to start wireless networking. Thus, etcupdate(3)
1715 or mergemaster(8) run is required after kernel update, to update your
1716 rc.d scripts in /etc.
1719 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl'
1720 These configurations are now automatically interpreted as
1721 'scrub fragment reassemble'.
1724 Kernel-loadable modules for the random(4) device are back. To use
1725 them, the kernel must have
1728 options RANDOM_LOADABLE
1730 kldload(8) can then be used to load random_fortuna.ko
1731 or random_yarrow.ko. Please note that due to the indirect
1732 function calls that the loadable modules need to provide,
1733 the build-in variants will be slightly more efficient.
1735 The random(4) kernel option RANDOM_DUMMY has been retired due to
1736 unpopularity. It was not all that useful anyway.
1739 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired.
1740 Control over building the ELF Tool Chain tools is now provided by
1741 the WITHOUT_TOOLCHAIN knob.
1744 The polarity of Pulse Per Second (PPS) capture events with the
1745 uart(4) driver has been corrected. Prior to this change the PPS
1746 "assert" event corresponded to the trailing edge of a positive PPS
1747 pulse and the "clear" event was the leading edge of the next pulse.
1749 As the width of a PPS pulse in a typical GPS receiver is on the
1750 order of 1 millisecond, most users will not notice any significant
1751 difference with this change.
1753 Anyone who has compensated for the historical polarity reversal by
1754 configuring a negative offset equal to the pulse width will need to
1755 remove that workaround.
1758 The default group assigned to /dev/dri entries has been changed
1759 from 'wheel' to 'video' with the id of '44'. If you want to have
1760 access to the dri devices please add yourself to the video group
1763 # pw groupmod video -m $USER
1766 The menu.rc and loader.rc files will now be replaced during
1767 upgrades. Please migrate local changes to menu.rc.local and
1768 loader.rc.local instead.
1771 GNU Binutils versions of addr2line, c++filt, nm, readelf, size,
1772 strings and strip have been removed. The src.conf(5) knob
1773 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools.
1776 As ZFS requires more kernel stack pages than is the default on some
1777 architectures e.g. i386, it now warns if KSTACK_PAGES is less than
1778 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing).
1780 Please consider using 'options KSTACK_PAGES=X' where X is greater
1781 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations.
1784 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0
1785 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by
1786 default, i.e., they will not contain "::". For example, instead
1787 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet
1788 to have a more specific match, such as different map entries for
1789 IPv6:0:0 vs IPv6:0. This change requires that configuration
1790 data (including maps, files, classes, custom ruleset, etc.) must
1791 use the same format, so make certain such configuration data is
1792 upgrading. As a very simple check search for patterns like
1793 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old
1794 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or
1795 the cf option UseCompressedIPv6Addresses.
1798 The default kernel entropy-processing algorithm is now
1799 Fortuna, replacing Yarrow.
1801 Assuming you have 'device random' in your kernel config
1802 file, the configurations allow a kernel option to override
1803 this default. You may choose *ONE* of:
1805 options RANDOM_YARROW # Legacy /dev/random algorithm.
1806 options RANDOM_DUMMY # Blocking-only driver.
1808 If you have neither, you get Fortuna. For most people,
1809 read no further, Fortuna will give a /dev/random that works
1810 like it always used to, and the difference will be irrelevant.
1812 If you remove 'device random', you get *NO* kernel-processed
1813 entropy at all. This may be acceptable to folks building
1814 embedded systems, but has complications. Carry on reading,
1815 and it is assumed you know what you need.
1817 *PLEASE* read random(4) and random(9) if you are in the
1818 habit of tweaking kernel configs, and/or if you are a member
1819 of the embedded community, wanting specific and not-usual
1820 behaviour from your security subsystems.
1822 NOTE!! If you use RANDOM_DUMMY and/or have no 'device
1823 random', you will NOT have a functioning /dev/random, and
1824 many cryptographic features will not work, including SSH.
1825 You may also find strange behaviour from the random(3) set
1826 of library functions, in particular sranddev(3), srandomdev(3)
1827 and arc4random(3). The reason for this is that the KERN_ARND
1828 sysctl only returns entropy if it thinks it has some to
1829 share, and with RANDOM_DUMMY or no 'device random' this
1833 An additional fix for the issue described in the 20150614 sendmail
1834 entry below has been committed in revision 284717.
1837 FreeBSD's old make (fmake) has been removed from the system. It is
1838 available as the devel/fmake port or via pkg install fmake.
1841 The fix for the issue described in the 20150614 sendmail entry
1842 below has been committed in revision 284436. The work
1843 around described in that entry is no longer needed unless the
1844 default setting is overridden by a confDH_PARAMETERS configuration
1845 setting of '5' or pointing to a 512 bit DH parameter file.
1848 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from
1849 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf
1850 and devel/kyua to version 0.20+ and adjust any calling code to work
1851 with Kyuafile and kyua.
1854 The import of openssl to address the FreeBSD-SA-15:10.openssl
1855 security advisory includes a change which rejects handshakes
1856 with DH parameters below 768 bits. sendmail releases prior
1857 to 8.15.2 (not yet released), defaulted to a 512 bit
1858 DH parameter setting for client connections. To work around
1859 this interoperability, sendmail can be configured to use a
1860 2048 bit DH parameter by:
1862 1. Edit /etc/mail/`hostname`.mc
1863 2. If a setting for confDH_PARAMETERS does not exist or
1864 exists and is set to a string beginning with '5',
1865 replace it with '2'.
1866 3. If a setting for confDH_PARAMETERS exists and is set to
1867 a file path, create a new file with:
1868 openssl dhparam -out /path/to/file 2048
1869 4. Rebuild the .cf file:
1870 cd /etc/mail/; make; make install
1871 5. Restart sendmail:
1872 cd /etc/mail/; make restart
1874 A sendmail patch is coming, at which time this file will be
1878 Generation of legacy formatted entries have been disabled by default
1879 in pwd_mkdb(8), as all base system consumers of the legacy formatted
1880 entries were converted to use the new format by default when the new,
1881 machine independent format have been added and supported since FreeBSD
1884 Please see the pwd_mkdb(8) manual page for further details.
1887 Clang and llvm have been upgraded to 3.6.1 release. Please see the
1888 20141231 entry below for information about prerequisites and upgrading,
1889 if you are not already using 3.5.0 or higher.
1892 TI platform code switched to using vendor DTS files and this update
1893 may break existing systems running on Beaglebone, Beaglebone Black,
1896 - dtb files should be regenerated/reinstalled. Filenames are the
1897 same but content is different now
1898 - GPIO addressing was changed, now each GPIO bank (32 pins per bank)
1899 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old
1900 addressing scheme is now pin 25 on /dev/gpioc3.
1901 - Pandaboard: /etc/ttys should be updated, serial console device is
1902 now /dev/ttyu2, not /dev/ttyu0
1905 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim.
1906 If you need the GNU extension from groff soelim(1), install groff
1907 from package: pkg install groff, or via ports: textproc/groff.
1910 chmod, chflags, chown and chgrp now affect symlinks in -R mode as
1911 defined in symlink(7); previously symlinks were silently ignored.
1914 The const qualifier has been removed from iconv(3) to comply with
1915 POSIX. The ports tree is aware of this from r384038 onwards.
1918 Libraries specified by LIBADD in Makefiles must have a corresponding
1919 DPADD_<lib> variable to ensure correct dependencies. This is now
1920 enforced in src.libnames.mk.
1923 From legacy ata(4) driver was removed support for SATA controllers
1924 supported by more functional drivers ahci(4), siis(4) and mvs(4).
1925 Kernel modules ataahci and ataadaptec were removed completely,
1926 replaced by ahci and mvs modules respectively.
1929 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see
1930 the 20141231 entry below for information about prerequisites and
1931 upgrading, if you are not already using 3.5.0 or higher.
1934 The 32-bit PowerPC kernel has been changed to a position-independent
1935 executable. This can only be booted with a version of loader(8)
1936 newer than January 31, 2015, so make sure to update both world and
1937 kernel before rebooting.
1940 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014),
1941 but before r278950, the RNG was not seeded properly. Immediately
1942 upgrade the kernel to r278950 or later and regenerate any keys (e.g.
1943 ssh keys or openssl keys) that were generated w/ a kernel from that
1944 range. This does not affect programs that directly used /dev/random
1945 or /dev/urandom. All userland uses of arc4random(3) are affected.
1948 The autofs(4) ABI was changed in order to restore binary compatibility
1949 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work
1950 with the new kernel.
1953 The powerpc64 kernel has been changed to a position-independent
1954 executable. This can only be booted with a new version of loader(8),
1955 so make sure to update both world and kernel before rebooting.
1958 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix
1959 only release, no new features have been added. Please see the 20141231
1960 entry below for information about prerequisites and upgrading, if you
1961 are not already using 3.5.0.
1964 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now
1965 taken from the ELF Tool Chain project rather than GNU binutils. They
1966 should be drop-in replacements, with the addition of arm64 support.
1967 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the
1968 binutils tools, if necessary. See 20150805 for updated information.
1971 The default Unbound configuration now enables remote control
1972 using a local socket. Users who have already enabled the
1973 local_unbound service should regenerate their configuration
1974 by running "service local_unbound setup" as root.
1977 The GNU texinfo and GNU info pages have been removed.
1978 To be able to view GNU info pages please install texinfo from ports.
1981 Clang, llvm and lldb have been upgraded to 3.5.0 release.
1983 As of this release, a prerequisite for building clang, llvm and lldb is
1984 a C++11 capable compiler and C++11 standard library. This means that to
1985 be able to successfully build the cross-tools stage of buildworld, with
1986 clang as the bootstrap compiler, your system compiler or cross compiler
1987 should either be clang 3.3 or later, or gcc 4.8 or later, and your
1988 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or
1991 On any standard FreeBSD 10.x or 11.x installation, where clang and
1992 libc++ are on by default (that is, on x86 or arm), this should work out
1995 On 9.x installations where clang is enabled by default, e.g. on x86 and
1996 powerpc, libc++ will not be enabled by default, so libc++ should be
1997 built (with clang) and installed first. If both clang and libc++ are
1998 missing, build clang first, then use it to build libc++.
2000 On 8.x and earlier installations, upgrade to 9.x first, and then follow
2001 the instructions for 9.x above.
2003 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by
2004 default, and do not build clang.
2006 Many embedded systems are resource constrained, and will not be able to
2007 build clang in a reasonable time, or in some cases at all. In those
2008 cases, cross building bootable systems on amd64 is a workaround.
2010 This new version of clang introduces a number of new warnings, of which
2011 the following are most likely to appear:
2015 This warns in two cases, for both C and C++:
2016 * When the code is trying to take the absolute value of an unsigned
2017 quantity, which is effectively a no-op, and almost never what was
2018 intended. The code should be fixed, if at all possible. If you are
2019 sure that the unsigned quantity can be safely cast to signed, without
2020 loss of information or undefined behavior, you can add an explicit
2021 cast, or disable the warning.
2023 * When the code is trying to take an absolute value, but the called
2024 abs() variant is for the wrong type, which can lead to truncation.
2025 If you want to disable the warning instead of fixing the code, please
2026 make sure that truncation will not occur, or it might lead to unwanted
2029 -Wtautological-undefined-compare and
2030 -Wundefined-bool-conversion
2032 These warn when C++ code is trying to compare 'this' against NULL, while
2033 'this' should never be NULL in well-defined C++ code. However, there is
2034 some legacy (pre C++11) code out there, which actively abuses this
2035 feature, which was less strictly defined in previous C++ versions.
2037 Squid and openjdk do this, for example. The warning can be turned off
2038 for C++98 and earlier, but compiling the code in C++11 mode might result
2039 in unexpected behavior; for example, the parts of the program that are
2040 unreachable could be optimized away.
2043 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER)
2044 kernel sources have been removed. The .h files remain, since some
2045 utilities include them. This will need to be fixed later.
2046 If "mount -t oldnfs ..." is attempted, it will fail.
2047 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used,
2048 the utilities will report errors.
2051 The handling of LOCAL_LIB_DIRS has been altered to skip addition of
2052 directories to top level SUBDIR variable when their parent
2053 directory is included in LOCAL_DIRS. Users with build systems with
2054 such hierarchies and without SUBDIR entries in the parent
2055 directory Makefiles should add them or add the directories to
2059 faith(4) and faithd(8) have been removed from the base system. Faith
2060 has been obsolete for a very long time.
2063 vt(4), the new console driver, is enabled by default. It brings
2064 support for Unicode and double-width characters, as well as
2065 support for UEFI and integration with the KMS kernel video
2068 You may need to update your console settings in /etc/rc.conf,
2069 most probably the keymap. During boot, /etc/rc.d/syscons will
2070 indicate what you need to do.
2072 vt(4) still has issues and lacks some features compared to
2073 syscons(4). See the wiki for up-to-date information:
2074 https://wiki.freebsd.org/Newcons
2076 If you want to keep using syscons(4), you can do so by adding
2077 the following line to /boot/loader.conf:
2081 pjdfstest has been integrated into kyua as an opt-in test suite.
2082 Please see share/doc/pjdfstest/README for more details on how to
2086 gperf has been removed from the base system for architectures
2087 that use clang. Ports that require gperf will obtain it from the
2091 pjdfstest has been moved from tools/regression/pjdfstest to
2095 At svn r271982, The default linux compat kernel ABI has been adjusted
2096 to 2.6.18 in support of the linux-c6 compat ports infrastructure
2097 update. If you wish to continue using the linux-f10 compat ports,
2098 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are
2099 encouraged to update their linux-compat packages to linux-c6 during
2100 their next update cycle.
2103 The ofwfb driver, used to provide a graphics console on PowerPC when
2104 using vt(4), no longer allows mmap() of all physical memory. This
2105 will prevent Xorg on PowerPC with some ATI graphics cards from
2106 initializing properly unless x11-servers/xorg-server is updated to
2110 The xdev targets have been converted to using TARGET and
2111 TARGET_ARCH instead of XDEV and XDEV_ARCH.
2114 The default unbound configuration has been modified to address
2115 issues with reverse lookups on networks that use private
2116 address ranges. If you use the local_unbound service, run
2117 "service local_unbound setup" as root to regenerate your
2118 configuration, then "service local_unbound reload" to load the
2122 The GNU texinfo and GNU info pages are not built and installed
2123 anymore, WITH_INFO knob has been added to allow to built and install
2125 UPDATE: see 20150102 entry on texinfo's removal
2128 The GNU readline library is now an INTERNALLIB - that is, it is
2129 statically linked into consumers (GDB and variants) in the base
2130 system, and the shared library is no longer installed. The
2131 devel/readline port is available for third party software that
2135 The Itanium architecture (ia64) has been removed from the list of
2136 known architectures. This is the first step in the removal of the
2140 Commit r268115 has added NFSv4.1 server support, merged from
2141 projects/nfsv4.1-server. Since this includes changes to the
2142 internal interfaces between the NFS related modules, a full
2143 build of the kernel and modules will be necessary.
2144 __FreeBSD_version has been bumped.
2147 The WITHOUT_VT_SUPPORT kernel config knob has been renamed
2148 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning
2149 which differs from the behaviour controlled by this knob.)
2152 Maximal length of the serial number in CTL was increased from 16 to
2153 64 chars, that breaks ABI. All CTL-related tools, such as ctladm
2154 and ctld, need to be rebuilt to work with a new kernel.
2157 The libatf-c and libatf-c++ major versions were downgraded to 0 and
2158 1 respectively to match the upstream numbers. They were out of
2159 sync because, when they were originally added to FreeBSD, the
2160 upstream versions were not respected. These libraries are private
2161 and not yet built by default, so renumbering them should be a
2162 non-issue. However, unclean source trees will yield broken test
2163 programs once the operator executes "make delete-old-libs" after a
2164 "make installworld".
2166 Additionally, the atf-sh binary was made private by moving it into
2167 /usr/libexec/. Already-built shell test programs will keep the
2168 path to the old binary so they will break after "make delete-old"
2171 If you are using WITH_TESTS=yes (not the default), wipe the object
2172 tree and rebuild from scratch to prevent spurious test failures.
2173 This is only needed once: the misnumbered libraries and misplaced
2174 binaries have been added to OptionalObsoleteFiles.inc so they will
2175 be removed during a clean upgrade.
2178 Clang and llvm have been upgraded to 3.4.1 release.
2181 We bogusly installed src.opts.mk in /usr/share/mk. This file should
2182 be removed to avoid issues in the future (and has been added to
2186 /etc/src.conf now affects only builds of the FreeBSD src tree. In the
2187 past, it affected all builds that used the bsd.*.mk files. The old
2188 behavior was a bug, but people may have relied upon it. To get this
2189 behavior back, you can .include /etc/src.conf from /etc/make.conf
2190 (which is still global and isn't changed). This also changes the
2191 behavior of incremental builds inside the tree of individual
2192 directories. Set MAKESYSPATH to ".../share/mk" to do that.
2193 Although this has survived make universe and some upgrade scenarios,
2194 other upgrade scenarios may have broken. At least one form of
2195 temporary breakage was fixed with MAKESYSPATH settings for buildworld
2196 as well... In cases where MAKESYSPATH isn't working with this
2197 setting, you'll need to set it to the full path to your tree.
2199 One side effect of all this cleaning up is that bsd.compiler.mk
2200 is no longer implicitly included by bsd.own.mk. If you wish to
2201 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk
2205 The lindev device has been removed since /dev/full has been made a
2206 standard device. __FreeBSD_version has been bumped.
2209 The knob WITHOUT_VI was added to the base system, which controls
2210 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1)
2211 in order to reorder files share/termcap and didn't build ex(1) as a
2212 build tool, so building/installing with WITH_VI is highly advised for
2213 build hosts for older releases.
2215 This issue has been fixed in stable/9 and stable/10 in r277022 and
2216 r276991, respectively.
2219 The YES_HESIOD knob has been removed. It has been obsolete for
2220 a decade. Please move to using WITH_HESIOD instead or your builds
2221 will silently lack HESIOD.
2224 The uart(4) driver has been changed with respect to its handling
2225 of the low-level console. Previously the uart(4) driver prevented
2226 any process from changing the baudrate or the CLOCAL and HUPCL
2227 control flags. By removing the restrictions, operators can make
2228 changes to the serial console port without having to reboot.
2229 However, when getty(8) is started on the serial device that is
2230 associated with the low-level console, a misconfigured terminal
2231 line in /etc/ttys will now have a real impact.
2232 Before upgrading the kernel, make sure that /etc/ttys has the
2233 serial console device configured as 3wire without baudrate to
2234 preserve the previous behaviour. E.g:
2235 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure
2238 Support for libwrap (TCP wrappers) in rpcbind was disabled by default
2239 to improve performance. To re-enable it, if needed, run rpcbind
2240 with command line option -W.
2243 Switched back to the GPL dtc compiler due to updates in the upstream
2244 dts files not being supported by the BSDL dtc compiler. You will need
2245 to rebuild your kernel toolchain to pick up the new compiler. Core dumps
2246 may result while building dtb files during a kernel build if you fail
2247 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler.
2250 Clang and llvm have been upgraded to 3.4 release.
2253 The nve(4) driver has been removed. Please use the nfe(4) driver
2254 for NVIDIA nForce MCP Ethernet adapters instead.
2257 An ABI incompatibility crept into the libc++ 3.4 import in r261283.
2258 This could cause certain C++ applications using shared libraries built
2259 against the previous version of libc++ to crash. The incompatibility
2260 has now been fixed, but any C++ applications or shared libraries built
2261 between r261283 and r261801 should be recompiled.
2264 OpenSSH will now ignore errors caused by kernel lacking of Capsicum
2265 capability mode support. Please note that enabling the feature in
2266 kernel is still highly recommended.
2269 OpenSSH is now built with sandbox support, and will use sandbox as
2270 the default privilege separation method. This requires Capsicum
2271 capability mode support in kernel.
2274 The libelf and libdwarf libraries have been updated to newer
2275 versions from upstream. Shared library version numbers for
2276 these two libraries were bumped. Any ports or binaries
2277 requiring these two libraries should be recompiled.
2278 __FreeBSD_version is bumped to 1100006.
2281 If a Makefile in a tests/ directory was auto-generating a Kyuafile
2282 instead of providing an explicit one, this would prevent such
2283 Makefile from providing its own Kyuafile in the future during
2284 NO_CLEAN builds. This has been fixed in the Makefiles but manual
2285 intervention is needed to clean an objdir if you use NO_CLEAN:
2286 # find /usr/obj -name Kyuafile | xargs rm -f
2289 The behavior of gss_pseudo_random() for the krb5 mechanism
2290 has changed, for applications requesting a longer random string
2291 than produced by the underlying enctype's pseudo-random() function.
2292 In particular, the random string produced from a session key of
2293 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
2294 be different at the 17th octet and later, after this change.
2295 The counter used in the PRF+ construction is now encoded as a
2296 big-endian integer in accordance with RFC 4402.
2297 __FreeBSD_version is bumped to 1100004.
2300 The WITHOUT_ATF build knob has been removed and its functionality
2301 has been subsumed into the more generic WITHOUT_TESTS. If you were
2302 using the former to disable the build of the ATF libraries, you
2303 should change your settings to use the latter.
2306 The default version of mtree is nmtree which is obtained from
2307 NetBSD. The output is generally the same, but may vary
2308 slightly. If you found you need identical output adding
2309 "-F freebsd9" to the command line should do the trick. For the
2310 time being, the old mtree is available as fmtree.
2313 libbsdyml has been renamed to libyaml and moved to /usr/lib/private.
2314 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg
2315 1.1.4_8 and verify bsdyml not linked in, before running "make
2317 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean
2319 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml
2322 The stable/10 branch has been created in subversion from head
2329 Sometimes, obscure build problems are the result of environment
2330 poisoning. This can happen because the make utility reads its
2331 environment when searching for values for global variables. To run
2332 your build attempts in an "environmental clean room", prefix all make
2333 commands with 'env -i '. See the env(1) manual page for more details.
2334 Occasionally a build failure will occur with "make -j" due to a race
2335 condition. If this happens try building again without -j, and please
2336 report a bug if it happens consistently.
2338 When upgrading from one major version to another it is generally best to
2339 upgrade to the latest code in the currently installed branch first, then
2340 do an upgrade to the new branch. This is the best-tested upgrade path,
2341 and has the highest probability of being successful. Please try this
2342 approach if you encounter problems with a major version upgrade. Since
2343 the stable 4.x branch point, one has generally been able to upgrade from
2344 anywhere in the most recent stable branch to head / current (or even the
2345 last couple of stable branches). See the top of this file when there's
2348 The update process will emit an error on an attempt to perform a build
2349 or install from a FreeBSD version below the earliest supported version.
2350 When updating from an older version the update should be performed one
2351 major release at a time, including running `make delete-old` at each
2354 When upgrading a live system, having a root shell around before
2355 installing anything can help undo problems. Not having a root shell
2356 around can lead to problems if pam has changed too much from your
2357 starting point to allow continued authentication after the upgrade.
2359 This file should be read as a log of events. When a later event changes
2360 information of a prior event, the prior event should not be deleted.
2361 Instead, a pointer to the entry with the new information should be
2362 placed in the old entry. Readers of this file should also sanity check
2363 older entries before relying on them blindly. Authors of new entries
2364 should write them with this in mind.
2368 When upgrading the boot ZFS pool to a new version, always follow
2371 1.) recompile and reinstall the ZFS boot loader and boot block
2372 (this is part of "make buildworld" and "make installworld")
2374 2.) update the ZFS boot block on your boot drive
2376 The following example updates the ZFS boot block on the
2377 freebsd-boot partition of a GPT partitioned drive ada0:
2378 "gpart bootcode -p /boot/gptzfsboot -i $N ada0"
2379 The value $N will typically be 1 (if booting from BIOS) or 2 (if
2382 Non-boot pools do not need these updates.
2386 If you are updating from a prior version of FreeBSD (even one just
2387 a few days old), you should follow this procedure. It is the most
2388 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
2390 make kernel-toolchain
2391 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
2392 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
2394 To test a kernel once
2395 ---------------------
2396 If you just want to boot a kernel once (because you are not sure
2397 if it works, or if you want to boot a known bad kernel to provide
2398 debugging information) run
2399 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
2400 nextboot -k testkernel
2402 To rebuild everything and install it on the current system.
2403 -----------------------------------------------------------
2404 # Note: sometimes if you are running current you gotta do more than
2405 # is listed here if you are upgrading from a really old current.
2407 <make sure you have good level 0 dumps>
2409 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2410 make installkernel KERNCONF=YOUR_KERNEL_HERE
2412 <reboot in single user> [3]
2419 To cross-install current onto a separate partition
2420 --------------------------------------------------
2421 # In this approach we use a separate partition to hold
2422 # current's root, 'usr', and 'var' directories. A partition
2423 # holding "/", "/usr" and "/var" should be about 2GB in
2426 <make sure you have good level 0 dumps>
2429 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2430 <maybe newfs current's root partition>
2431 <mount current's root partition on directory ${CURRENT_ROOT}>
2432 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC
2433 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
2434 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
2435 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
2436 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
2437 <reboot into current>
2438 <do a "native" rebuild/install as described in the previous section>
2439 <maybe install compatibility libraries from ports/misc/compat*>
2443 To upgrade in-place from stable to current
2444 ----------------------------------------------
2445 <make sure you have good level 0 dumps>
2447 make buildkernel KERNCONF=YOUR_KERNEL_HERE [8]
2448 make installkernel KERNCONF=YOUR_KERNEL_HERE
2450 <reboot in single user> [3]
2457 Make sure that you've read the UPDATING file to understand the
2458 tweaks to various things you need. At this point in the life
2459 cycle of current, things change often and you are on your own
2460 to cope. The defaults can also change, so please read ALL of
2461 the UPDATING entries.
2463 Also, if you are tracking -current, you must be subscribed to
2464 freebsd-current@freebsd.org. Make sure that before you update
2465 your sources that you have read and understood all the recent
2466 messages there. If in doubt, please track -stable which has
2467 much fewer pitfalls.
2469 [1] If you have third party modules, such as vmware, you should disable
2470 them at this point so they don't crash your system on
2471 reboot. Alternatively, you should rebuild all the modules you have in
2472 your system and install them as well. If you are running -current, you
2473 should seriously consider placing all sources to all the modules for
2474 your system (or symlinks to them) in /usr/local/sys/modules so this
2475 happens automatically. If all your modules come from ports, then adding
2476 the port origin directories to PORTS_MODULES instead is also automatic
2478 PORTS_MODULES+=x11/nvidia-driver
2480 [3] From the bootblocks, boot -s, and then do
2484 sh /etc/rc.d/zfs start # mount zfs filesystem, if needed
2485 cd src # full path to source
2486 adjkerntz -i # if CMOS is wall time
2487 Also, when doing a major release upgrade, it is required that you boot
2488 into single user mode to do the installworld.
2490 [4] Note: This step is non-optional. Failure to do this step
2491 can result in a significant reduction in the functionality of the
2492 system. Attempting to do it by hand is not recommended and those
2493 that pursue this avenue should read this file carefully, as well
2494 as the archives of freebsd-current and freebsd-hackers mailing lists
2495 for potential gotchas. The -U option is also useful to consider.
2496 See mergemaster(8) for more information.
2498 [5] Usually this step is a no-op. However, from time to time
2499 you may need to do this if you get unknown user in the following
2500 step. It never hurts to do it all the time. You may need to
2501 install a new mergemaster (cd src/usr.sbin/mergemaster && make
2502 install) after the buildworld before this step if you last updated
2503 from current before 20130425 or from -stable before 20130430.
2505 [6] This only deletes old files and directories. Old libraries
2506 can be deleted by "make delete-old-libs", but you have to make
2507 sure that no program is using those libraries anymore.
2509 [8] The new kernel must be able to run existing binaries used by an
2510 installworld. When upgrading across major versions, the new kernel's
2511 configuration must include the correct COMPAT_FREEBSD<n> option for
2512 existing binaries (e.g. COMPAT_FREEBSD11 to run 11.x binaries). Failure
2513 to do so may leave you with a system that is hard to boot to recover. A
2514 GENERIC kernel will include suitable compatibility options to run
2515 binaries from older branches. Note that the ability to run binaries
2516 from unsupported branches is not guaranteed.
2518 Make sure that you merge any new devices from GENERIC since the
2519 last time you updated your kernel config file. Options also
2520 change over time, so you may need to adjust your custom kernels
2523 [9] If CPUTYPE is defined in your /etc/make.conf, make sure to use the
2524 "?=" instead of the "=" assignment operator, so that buildworld can
2525 override the CPUTYPE if it needs to.
2527 MAKEOBJDIRPREFIX must be defined in an environment variable, and
2528 not on the command line, or in /etc/make.conf. buildworld will
2529 warn if it is improperly defined.
2532 This file contains a list, in reverse chronological order, of major
2533 breakages in tracking -current. It is not guaranteed to be a complete
2534 list of such breakages, and only contains entries since September 23, 2011.
2535 If you need to see UPDATING entries from before that date, you will need
2536 to fetch an UPDATING file from an older FreeBSD release.
2538 Copyright information:
2540 Copyright 1998-2009 M. Warner Losh <imp@FreeBSD.org>
2542 Redistribution, publication, translation and use, with or without
2543 modification, in full or in part, in any form or format of this
2544 document are permitted without further permission from the author.
2546 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
2547 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
2548 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
2549 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
2550 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
2551 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
2552 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2553 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
2554 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
2555 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2556 POSSIBILITY OF SUCH DAMAGE.
2558 Contact Warner Losh if you have any questions about your use of