Implement the Eifel Dectection Algorithm for TCP (RFC 3522).

[dragonfly.git] / UPDATING

Updating Information for FreeBSD STABLE users

This file is maintained and copyrighted by M. Warner Losh
<imp@village.org>.  See end of file for further details.  For commonly
done items, please see the COMMON ITEMS: section later in the file.

A reverse chronology since 4.0 was released is included, followed by
the common items quick how-tos, followed by entries for versions of
-current prior to 4.0 Release.


20030403:
        FreeBSD 4.8-RELEASE.

20030214:
        OpenSSL 0.97 has been imported, and the libcrypto/libssl
        library versions have been bumped.

20030213:
        sendmail 8.12.7 has been imported.  It has one important
        change for IPv6 users.  The default submit.mc now uses
        '[127.0.0.1]' instead of 'localhost' meaning only IPv4 is
        used to connect to the MTA.  Users on IPv6-only machines
        will need to edit /etc/mail/submit.mc appropriately.

20021110:
        The definitions of the standard file streams (stdin, stdout, and
        stderr) have changed so that they are no longer compile-time 
        constants.  Some older binaries may require updated 3.X 
        compatability libraries (for example, by setting COMPAT3X=yes 
        for a buildworld/installworld).

20021010:
        FreeBSD 4.7-RELEASE.

20020807:
        COPY is being deprecated.  The 20020703 change was reverted, as
        it causes far more pain than was expected, and to always compare
        before installing, please use INSTALL="install -C" again.  The
        -C option is now silently ignored when used with the -d option.

20020704:
        OpenSSH has been upgraded to 3.4p1 and fully PAMified.  Note
        that the protocol version now defaults to 2 rather than 1,
        which means clients might get warnings about unknown host keys
        their hostfiles only list the ssh1 RSA key.  See ssh_config(5)
        and sshd_config(5) for more information on configuring ssh and
        sshd.

20020703:
        The install(1) utility no longer allows the -d and -C options
        to be specified together.  "INSTALL=install -C" in make.conf
        should be replaced with "COPY=-C".

20020615:
        FreeBSD 4.6-RELEASE.

20020515:
        The k5su utility installed as part of Kerberos 5 is no longer
        installed with the set-user-ID bit set by default.  Add
        ENABLE_SUID_K5SU=yes to /etc/make.conf to have it installed
        with the set-user-ID bit set.

20020501:
        The ephemeral port range change that was previously mentioned
        in this document has been reverted, so any changes it required
        to your system may be reverted as well.  Those who missed the
        change should ignore this notice.

20020421:
        inetd_enable was changed back to YES, to match the defaults
        earlier in the 4.0-stable branch.  This change restores the
        daemons that were enabled prior to April 15th.

        When exec'ing set[ug]id executables, the kernel now ensures that the
        stdio file descriptors (0..2) are open.  See FreeBSD-SA-02:23.stdio.

20020420:
        sendmail_enable was changed back to YES, to match the
        defaults earlier in the 4.0-stable branch.

20020415:
        Many denizens of /etc were MFC'ed. While most of the changes
        are very benign, some of them have created a bit of a stir.
        Use the new version of mergemaster to update /etc, either by
        updating /etc after installworld, or by doing:
        cd /usr/src/usr.sbin/mergemaster; make -m /usr/src/share/mk all install
        before you run installworld.

        Then use the new -C option to double-check your rc.conf settings.
        You should also double-check settings in [defaults/]rc.conf,
        syslog.conf, newsyslog.conf, and anything else important
        to your system.

        The two most important changes to note: sendmail and inetd were
        turned off by default.  If you need them, please turn them back
        on by adding sendmail_enable=YES and/or inetd_enable=YES to
        /etc/rc.conf.

20020411:
        New sendmail startup scripts have been installed to make it
        easier to use alternative MTAs with FreeBSD.  The rc.conf
        variable mta_start_script can be set to a script for starting
        an alternative MTA or to "" to prevent any MTA from being
        started at boot.

20020404:
        The sendmail startup code in /etc/rc has been changed to deal
        with a non-set-user-ID sendmail binary.  Setting the rc.conf
        variable sendmail_enable to "NO" no longer prevents any sendmail
        daemons from starting.  Instead, set sendmail_enable to "NONE"
        to prevent any MTA from being started at boot.

20020404:
        Due to the import of sendmail 8.12.2 (see 20020325 entry), a new
        user and group are required in order for sendmail to run as a
        set-group-ID binary.  A 'make installworld' will use the new user
        and group to set the owner and group of /var/spool/clientmqueue
        and will fail if the new user and group do not exist.  The 'smmsp'
        user and group must be merged from src/etc/group and
        src/etc/master.passwd before using 'make installworld'.
        'mergemaster -p' will do this.  You may need to install
        mergemaster before this will work if you are updating from a
        very old version of stable.  This can be done with:
        cd /usr/src/usr.sbin/mergemaster; make -m /usr/src/share/mk all install

20020325:
        sendmail 8.12.2 has been imported.  The sendmail binary is no
        longer a set-user-ID root binary and the infrastructure to support
        command line mail submission has changed.  Be sure to run
        mergemaster (especially for updating /etc/rc, /etc/defaults/rc.conf,
        and /etc/mail) and read /etc/mail/README for more details.

20020318:
        The ata(4) driver has been updated from the version in -CURRENT.  
        As a result, some device nodes in /dev have changed; it will be 
        necessary to update MAKEDEV and re-make the device nodes.
        mergemaster(8) will offer to do this as a part of its upgrade
        procedure.

20020129:
        FreeBSD 4.5-RELEASE.

20020105:
        The locale names have been renamed in -stable to match
        -current:
                1. ISO_* -> ISO*
                2. ru_SU* -> ru_RU*
                3. DIS_* -> ISO*-15
                4. *.ASCII -> *.US-ASCII

20011202:
        A security hole in OpenSSH involving `UseLogin yes' has been
        patched.

20011110:
        Some linux module changes, merged from current, require that you
        clean out the old compile directory.  If you are building with
        MODULES_WITH_WORLD=yes, then you need to cd to src/sys/modules/linux
        and run "make cleandir".  If not, then you need to cd
        src/sys/compile/$KERNCONF and do a make modules-clean.

20011102:
        ipfw/bridge/dummynet features merged from current.

20011018:
        The kernel Makefile was enhanced to pass -g to modules builds
        when it is used for kernel building (eg, when the config file
        has DEBUG=-g).  People that have enabled debugging kernels
        will find they need significantly more disk space in their
        slash (/) partition.

20010928:
        The OpenSSH `ChallengeResponseAuthentication' option now
        defaults to `yes'.  This enables S/Key authentication, which
        can result in users receiving an S/Key challenge when logging
        in interactively.  To disable this behavior, add a line to
        your /etc/ssh/sshd_config file:
        `ChallengeResponseAuthentication no'

20010914:
        4.4 Released.

20010814:
        The pci attachment for pcic device was merged from current.  You
        should update your pccardd at the same time as you update your
        kernel.

        Note: Interrupts will now be shared between the CardBus bridge
        and the cards.  This is a change over the hand configuration
        before.

20010811:
        isdn4bsd was updated to version 1.00.1. for users of the isp<N>
        (kernel PPP over ISDN) devices, this means that they now _must_
        use ispppcontrol instead of spppcontrol to configure and control
        their isp<N> devices. see /usr/share/examples/isdn for more info.

20010725:
        The ed driver has been updated.  It now allows mii attachments,
        which means that you must include the miibus in your kernel if
        you use the ed driver.

20010724:
        The gif(4) interface has been converted to use cloning
        rather then allocating a static number of devices a compile
        time.  If you use gif interfaces and configure them by any
        method other then setting standard variables in /etc/rc.conf
        you will need to update your system to create devices with
        "ifconfig gifX create" before attempting to configure them.
        
        See the ifconfig(8) man page and /etc/rc.network for more
        information.

20010611:
        The TCP_RESTRICT_RST option has been removed. You should entirely
        remove it from your kernel configuration.

        The same functionality is available from the blackhole(4) MIB.

20010531:
        The wd compat devices were removed from the ata driver.  Kernels
        after this date will fail to work with /dev/ nodes that you may
        have on your disk.  /etc/fstab is a common place to find these
        files hanging out, as are dump devices in /etc/rc.conf.

20010521:
        Minor repo damange has happened.  This may cause problems
        with cvsup of ports.  If you get errors, please see
        http://www.FreeBSD.org/cgi/query-pr.cgi?pr=27495
        at the bottom for details on a workaround.  The error message
        is
Updater failed: Cannot delete "/usr/ports/www/jakarta-tomcat/files": Directory not empty

20010516:
        Size changes in the cred structures introduced a binary
        incompatibility for modules using the crhold() macro.  Modules
        should be recompiled for kernel later than this date.

20010510:
        The fxp driver from current has been ported to -stable.  This
        requires kernels that include fxp to also include mii bus devices.
        See GENERIC for details.

20010421:
        FreeBSD 4.3 RELEASE

20010402:
        It appears that PERL_THREADED=true in /etc/make.conf is not
        compatible with mod_perl.  Not sure the exact date of this problem,
        but it post dates 4.2 and predates 4.3.

20010202:
        The KERNEL variable for buildkernel and installkernel has been
        deprecated in favor of KERNCONF.  make kernel now combines these
        two steps.

20010117:
        Linksys Fast Ethernet PCCARD cards supported by the ed driver
        now require the addition of flag 0x80000 to their config line
        in pccard.conf(5).  This flag is not optional.  These Linksys
        cards will not be recognized without it.

20010112:
        Important new FreeBSD-version stuff: PAM support has been worked
        in, partially from the "Unix" OpenSSH version.  This requires
        adding the following in pam.conf:
  
        sshd    auth    sufficient      pam_skey.so
        sshd    auth    required        pam_unix.so         try_first_pass
        sshd    session required        pam_permit.so

20010109:
        ipfw interface changed.  Make sure that the userland and kernel match
        or you won't have the firewall rules you think you do.

20001120:
        FreeBSD 4.2 RELEASE.

20001020:
        ****************************** WARNING ******************************
                                Sendmail has been updated.
        ****************************** WARNING ******************************
        o mail.local(8) is no longer installed as a set-user-id binary.
        o sendmail(8) is now built with STARTTLS support unless NO_OPENSSL
          is set.
        o The default /etc/mail/sendmail.cf disables the SMTP EXPN and VRFY
          commands.
        o Now using sendmail's version of vacation(1).
        o The sendmail cf building tools (contrib/sendmail/cf) are installed
          in /usr/share/sendmail/cf.
        o sendmail.cw changed to local-host-names

        More details can be found at
                http://people.freebsd.org/~imp/UPDATING/sendmail-20001010

20001009:
        The ports tree's new layout is in place.  Be sure to update
        your entire ports tree, or you will have problems.

20001006:
        The perl build procedure no longer installs miniperl, nor uses
        the installed miniperl.  It is recommended that you delete
        /usr/bin/miniperl.

20000925:
        FreeBSD 4.1.1 RELEASE.

20000907:
        Changes to libkvm requires a recompile of the usual suspects.
        (find /usr/src -name Makefile | xargs egrep -l LIBKVM)
        This means that your world must match your kernel around this
        point.

20000904:
        A new issue with the sendmail upgrade has come to light.
        /etc/aliases has moved to /etc/mail/aliases.  Mergemaster will 
        incorrectly install the default aliases in /etc/mail rather than
        move the old one from /etc.  So you'll need to manually move the
        file, create a symbolic link, remove the old /etc/aliases.db and
        run newaliases.  For safety sake, you should stop sendmail
        while doing this and run the upgrade when locally sourced email
        is not likely to be generated.

20000827:
        sendmail has been updated from 8.9.3 to 8.11.0.  Some of the more
        visible changes that may immediately affect your configuration
        include:
        - New default file locations from src/contrib/sendmail/cf/README
        - newaliases limited to root and trusted users
        - MSA port (587) turned on by default
        - New queue file naming system so can't go from 8.11 -> 8.9
        - FEATURE(`rbl') renamed to FEATURE(`dnsbl')
        - FEATURE(`nullclient') is more full featured
        - FEATURE(`nouucp') requires an argument: `reject' or `nospecial'
        - mail.local FreeBSD-only -b option changed to -B
        - See src/contrib/sendmail/RELEASE_NOTES for more info

20000803:
        The "installkernel" target has changed slightly. Now even if
        you override KERNEL e.g. 'make installkernel KERNEL=MYKERNEL'
        it will install the MYKERNEL file (built with the buildkernel
        target) as /kernel rather than /MYKERNEL. Those who have
        updated their /boot/loader.conf files to point to /MYKERNEL
        should remove that entry or perform manual rename of /kernel
        to /MYKERNEL.

20000724:
        FreeBSD 4.1 RELEASE

20000711:
        If you use CVSUP or CTM to get CVS trees, AND you used to get 
        the old crypto files from internat.freebsd.org AND you check
        out files from the CVS tree with the cvs command, please read
                http://people.freebsd.org/~imp/internat.txt
        for details on potential problems that you might have and how
        to get around them.

        If you are merely a mirror, or don't answer yes to each of the
        clauses above, you needn't worry.

20000707:
        We started building modules here.  IF you don't wish to
        follow the documented procedure for building kernels, then
        you'll have to install new mk files from src/share/mk, or
        define NO_MODULES.

20000706:
        Binutils were updated.  In order to build a kernel after this
        date, you must follow the updating procedure for building
        kernels exactly as presented here.  You may be able to get away
        with doing it the old way, but if it breaks, make sure that you've
        tried the "To build a kernel" section with a fresh /usr/obj
        first.

20000622:
        The license on the softupdates is now a standard 2 clause
        BSD license.  You may need to remove your symbolic links
        that used to be required when updating.

20000501:
        At approximately this date, an incompatible kernel change
        was made which means that if you update kernels accross
        this boundary, you also have to update modules, and vice
        versa.

20000315:
        FreeBSD 4.0 RELEASE.  Historical entries follow the common
        items.

****************************** 4.0 RELEASE ******************************

COMMON ITEMS:

        To build a kernel
        -----------------
        cd /usr/src
        # If you have not already done so, please buildworld here
        # You will also need to update your config file to 4.x.  Usually
        # people tend to start with GENERIC from 4.x and hack from there.
        make buildkernel KERNCONF=<YOUR_KERNEL_HERE>
        make installkernel  KERNCONF=<YOUR_KERNEL_HERE>
        # Verify that the new kernel works, it will be installed as
        # /kernel

        To rebuild disk /dev entries
        ----------------------------
        MAKEDEV should be copied from src/etc/MAKEDEV to /dev before
        starting the following:

                For N in the list of disks
                        MAKEDEV N                       # eg ad0
                        for M in the list of slices
                                MAKEDEV NsMa            # eg ad0s1a


        To rebuild everything
        ---------------------
        make world

        Except when it doesn't work :-)

        To update from 3.x to 4.x stable
        --------------------------------
        ***********************************************************
        READ -STABLE ARCHIVES FOR THE LAST WEEK OR TWO BEFORE
        STARTING THIS PROCESS.  UPDATING MAY LAG BEHIND A LITTLE
        A GOTCHAS ARE OFTEN REPORTED IN FREEBSD-STABLE@FREEBSD.ORG
        BEFORE BEING INCLUDED HERE.  IF YOU ARE GOING TO DO REMOTE
        MACHINES, MAKE SURE THAT THE EXACT VERSION YOU ARE UPDATING
        THEM TO WORKS ON LOCAL MACHINES BEFORE PROCEEDING.
        ***********************************************************
        <see notes below>                               [3]
        cd /usr/src
        <see notes below>                               [2]
        make buildworld -DNOPERL
        <follow directions to build/install a kernel>
        cd /usr/src/sbin/mknod
        make install
        <follow rebuild disk /dev entries above>        [1]
        reboot
        <in single user>                                [6]
        cd /usr/src
        cd gnu/usr.bin/texinfo/install-info
        make install
        cd ../../../..
        ldconfig -R /usr/obj/usr/src/lib/libc
        make installworld -DNOPERL                      [5]
        mergemaster                                     [4]
        reboot
        <multi-user>

        [1] You may need to switch from wd to ad ala 19991210.  In
        addition, you should disable any third party modules such as
        vmware so that you don't crash your system on reboot.
        [2] If you have any of the following in your /etc/make.conf,
        please comment them out before following these instructions
        and then do a make buildworld + make installworld after you
        are back to <multi-user> above:
                MAKE_KERBEROS4
        [3] Update to 4.x-stable sources.  Make sure that you get all
        the parts.  If you are using cvsup files that are older than a
        couple of months, be sure they have all the components listed
        in /usr/share/examples/cvsup.  Crypto and secure are now
        required.
        [4] This step is not optional.  If you fail to do this, you
        will not have critical system config files updated for their
        4.x functionality.  This will lead to reduced system
        functionality, the biggest problem being with /etc/pam.conf
        not having the entries necessary to allow remote ssh access.
        [5] Note: This won't upgrade your perl install.  You will
        need to rebuild the world on 4.x to update perl.
        [6] From the bootblocks, boot -s, and then do
                fsck -p
                mount -u /
                mount -a
                cd /usr/src
                adjkerntz -i            # if CMOS is wall time

        To update from 4.0-RELEASE or later to the most current
        4.x-STABLE
        ----------
        make buildworld
        make buildkernel KERNCONF=YOUR_KERNEL_HERE
        make installkernel KERNCONF=YOUR_KERNEL_HERE
        reboot  (in single user) [1]
        make installworld
        mergemaster             [2]
        reboot

        [1] You can often get away without doing this step as the
        system will be properly updated.  During the running of the
        installworld, however, system components may break and other
        oddities may happen.  Don't do this on systems that aren't
        otherwise quiet as unpredictable results may happen.  If in
        doubt, reboot into single user.  For remote installs, keep
        a separate kernel around and use a serial console if at all
        possible.  See also note [6] above.
        [2] If you do not run mergemaster, you will likely hit a
        number of show stopper problems.  The biggest one is that
        your /etc/pam.conf won't let you log in using ssh.

What follows are older entries for those people upgrading from earlier
versions of -stable/-current.

20000308:
        The binary interface of perl to its modules changed.  You
        will need to recompile any perl moudles after an
        installworld.  This includes all ports matching the pattern 
        /usr/ports/*/p5-*.

20000303:
        CMSG_XXX macros offset in <sys/socket.h> has changed to
        conform RFC-2292.  All affected applications have been
        corrected.  The i386 platform's offsets haven't changed, but
        the alpha's did.  When you build and install new kernel on
        FreeBSD/alpha, you must also do a make world.

20000225:
        OpenSSH has been added to FreeBSD.  This may conflict with the
        ports/security/ssh port since it installs binaries into
        /usr/bin and the port goes into /usr/local/bin.  Most paths
        have /usr/bin in the path before /usr/local/bin, so problems
        may arise.  If you don't want OpenSSH, add NO_OPENSSH=yes to
        your make.conf.

        You will also need to enable OpenSSH in /etc/rc.conf if you
        want to run the new servers.  You may need to move your host
        key and other config files from /usr/local/etc to /etc/ssh.

        OpenSSH's command line parsing, available options and default
        settings aren't the same as ssh, so some care needs to be
        taken in its operation.  One should do a full audit of all
        configuration settings.

20000205:
        The xinstall problem has kinda sorta been corrected.  The 
        following is known to work by the author of UPDATING.  It
        is what he did to update his laptop.  It is likely the same
        effect as the work around listed in 20000129.
                make buildworld
                make installworld       This will fail
                cd usr.bin/xinstall
                make clean all install NOSHARED=YES
                cd ../..
                make installworld
        If it doesn't work for you, then I'm sure that there will be
        another 100 messages in -current.

20000204:
        libipsec version number changed from 2 to 0.  The original
        commit of Jan 6 incorrectly set this to 2.  Remove
        /usr/lib/libipsec.so.2* before the buildworld and rebuild
        anything that uses libipsec.so after you install the new
        version.

20000201:
        The rcmd related functions have been aligned with other BSD
        implementations.  rlogind and rshd have been changed to use
        the new API.  A make world is recommended to keep them in sync
        with the libraries they use.

        http://www.FreeBSD.org/cgi/cvsweb.cgi/src/lib/libc/net/rcmd.c
        has the details.

20000129:
        {set,get}flags have been added to the tree for rather dubious
        reasons.

        IF AND ONLY IF installworld fails:
                make -k -DNOFSCHG installworld
                make installworld
        This issue was resolved Feb 5, 2000.

20000125:
        rcmd_af() is added for multiple address family support.  rsh
        and rlogin have been updated to use this to support INET6.  A
        make world is recommended to keep them in sync with the
        libraries they use.

20000124:
        The default way that virtual tables in our default C++
        compiler has changed.  We used to use THUNKS for virtual
        inheritance.  Unfortunately there are bugs that The GCC
        developers thought would be fixed in GCC 2.95.  However it
        isn't.

        After this change existing applications written in C++ may
        give errors like below when you try to run them:

/usr/libexec/ld-elf.so.1: /usr/lib/libstdc++.so.3: Undefined symbol "__vt_7filebuf"

        The only fix is to rebuild the application and any C++
        libraries used.

20000124:
        The management of next_writeable has been move from the
        kernel to userspace. This means that the burncd command
        must be in sync with the kernel. So make world is your
        friend.

20000117:
        GNU texinfo upgraded to 4.0.  It is recommended that you use
        make buildworld to update.

20000117:
        CAM_VERSION has been increased.  Recompile all programs that
        depend on it (tosha, camcontrol, etc) when moving to kernels
        past this date.

20000115:
        pccard ioctls changed with a commit to have the kernel tell
        pccardd which device it created, rather than having pccardd
        dictate it to the kernel.  Recompile kernel and
        pccardd/pccardc together.  pccardd/pccardc rely on a kernel
        Makefile that must be installed prior to building them.  Make
        world will automatically take care of this issue, but you need
        to know if you are building by hand.

20000109:
        Your kernel config files need to be changed to s/controller/device/
        in them.  You will need a new version of config to do this.

20000107:
        chown & chgrp moved again

        This is a heads up to let you know that you need to 
                    rm -f /sbin/chown /bin/chgrp
        after your next `make world'.  Additionally you need to install
        a new /dev/MAKEDEV (mergemaster(8) will assist you in this).

20000107:
        SHA-1 password support gone

        As warned yesterday, I've just removed the ability for
        libcrypt to understand SHA-1 passwords. This was present but
        undocumented in the tree for the past few months and was
        removed so it can be reimplemented properly as part of a
        revamped libcrypt at a later date. Anyone who was actually
        making use of the feature will have to update their passwords
        back to MD5 before they reinstall the library.

20000106:
        ioctl numbers changed for dvdio ioctls.  You will need to recompile
        anything that uses them.  wormcontrol has been deprecated in
        favor of burncd.

19991223:
        Building linux and svr4 compatibility into the kernel now
        requires /usr/bin/genassym.  Go to /usr/src/usr.bin/genassym,
        do "make obj ; make clean depend all install" before building
        your kernel.

19991218:
        sendmail.cf has moved from /etc/sendmail.cf to
        /etc/mail/sendmail.cf.  You may need to adjust /etc/rc.conf
        and /etc/rc to cope as well as moving sendmail.cf.

19991216:
        ntp 4.0.98 has replaced the ancient xntpd.  The daemon name
        changed from xntpd to ntpd, so you may need to update your
        /etc/rc.conf file.  The ntp.conf files are compatible with the
        old release, unless you are using a local reference clock.
        Details about ntp4 can be found at http://www.ntp.org/.

        xntpd will be cvs removed from the repo in about a week.

19991213:
        Soren updated the ata driver.  Please update to at least this
        version before submitting bug reports.

19991210:
        The ata driver has become the primary ata/ide/atapi driver in
        the kernel.  The wd driver is obsolete.  You should upgrade your
        machine to the new ata driver.  You will need to follow the
        directions for updating the devices in the 19991205 entry.  You
        will need to update all occurances of wd to ad in your config files
        (/etc/rc.conf, /etc/fstab, etc).  A compatibility device exists
        for wd for the time being, but once you have determined that
        ata is working for you, transition to the new ad devices.

19991205:
        Block devices are going away.  You will need to update your /dev
        tree with a fresh copy of MAKEDEV for things to always work in 
        the future.  fsck is unable to cope with dirty file systems
        after this change, so it may work for you or it may not.

        See "To rebuild disk /dev entries" at the end of the file.

        *** All uses of block devices must be converted to char devices.
        *** Likely the only thing impacted is dumpdev in /etc/rc.conf

19991204:
        The dc interface has replaced al, ax, dm, pn and mx.  The former
        have been removed.

19991204:
        Support for the old 'sd' device names has been removed in
        favor of 'da'.  Please update your /etc/fstab, /etc/rc.conf
        and any other places you might have sd names cached.
        Generally these changes are as simple as s=/dev/sd=/dev/da=g,
        but be careful to make sure that things are really that
        simple.  You may also need to create /dev entries for the da
        devices as well.

        See "To rebuild disk /dev entries" at the end of the file.

19991203:
        BAD144 support has been removed.  Cope or replace the hardware.

19991129:
        ALPHA users take note.  All klds will need to be recompiled for
        kernels build after this date.  It is a good time to update since
        pal.s will be going away soon.

19991126:
        MFS_ROOT and MFS_ROOT_SIZE are gone, replaced by MD_ROOT and
        MD_ROOT_SIZE options in the md driver.  md driver now deals with
        the hacks.  You should add md driver to kerneles that have
        MFS_ROOT, et al.  See GENERIC or LINT for details.

19991125:
        The ep changed a while ago and can no longer be used with hard
        wired addresses in the config file.

19991122:
        The bridge drivers for sound cards have been committed.  Please
        see LINT for instructions for your card, if it still works at
        all.

19991113:
        Gcc 2.95.2 is now the default compiler.

19991030:
        /etc/radius.conf file format has changed.The format change is
        as follows.  Each server line in the file should now begin
        with a new field containing either "auth" for RADIUS
        authentication, or "acct" for RADIUS accounting.  Formerly
        only authentication was supported.  If the first field isn't
        "auth" or "acct" then the code assumes that "auth" is
        intended.  (That's the compatibility hack.)

19991015:
        PCCARD has been updated to attach pcic to the isa bus.  Therefore
        you will need to modify kernel config files that have pcic/card
        in them as follows:
                controller      pcic0   at isa?
                controller      pcic1   at isa?
                controller      card0

19990929:
        The sigset_t datatype has been changed from an integral type
        to a compound type and can hold 128 signals. Syscalls directly
        or indirectly using the new sigset_t have been added as to
        maintain compatibility with existing binaries. A new kernel must
        be made and installed and booted with before a make world can
        be done.

        ***************************************************************
                RECOMPILE AND REINSTALL KERNEL BEFORE MAKEWORLD
        ***************************************************************

19990919:
        New jail syscall format requires recompilation of jail(8) with
        fresh headers installed (or a make world will do it for you).

19990914:
        Matt Dillon checked in many vm related things and sent a heads up
        to -current urging caution and to report vm problems to him.
        As of the 19th, no killer problems have been reported, but you
        have been warned.

19990908:
        The new miibus has been added to the system.  If you are using
        the dm, rl, sf, sis, ste, tl, wb or xl drivers, you need to
        add "controller miibus0" to your config file.

19990905:
        /var/cron/log has been moved to /var/log/cron to get all the
        log files in one place.

19990831:
        tn3270 has been removed from the base system and added as a port.

19990830:
        User-visible TCP timers are now expressed in units of 1ms, instead
        of 500ms, so if you've customized any timer values under
        ``net.inet.tcp'', multiply them by 500 to preserve TCP's behavior.

19990828:
        RCS Id tags changed to FreeBSD.  This will cause huge cvsup
        updates.

19990821:
        On 28-May-1999 libreadline was upgraded from readline-2.2 to
        readline-4.0.  At that time the shared library major version
        number was bumped from "3" to "4".  It has been deemed that
        the interface change between readline-2.2 and readline-4.0 was
        not sufficient to warrant the version number bump.

        Thus I have reverted it back to "3".  You will need to perform
        the below immediately before your next ``make world'':
            cd /usr/lib
            ls -l libreadline.so.4
                (if you have /usr/lib/libreadline.so.4)
            mv libreadline.so.4 libreadline.so.3
            rm -f libreadline.so
            ln -s libreadline.so.3 libreadline.so

19990801:
        Changes to the pccardd kernel interface require that you recompile
        pccardd for new kernel.

19980725:
        The ipfw interface to the kernel has changed.  You will need to
        recompile ipfw programs for the new kernel.

19990715:
        The bpfilter device has been renamed to bpf.  You will need to 
        change your config files in order to enable this in newer kernels.

19990704:
        src/contrib/sys/softupdates is moving to
        src/sys/contrib/softupdates.  Update your symbolic links/etc.

19990702:
        Major changes have been made to vinum and its interface.  See
        the man page (vinum(8)) for details.  Look at the concat,
        mirror and stripe commands, as well as the SIMPLIFIED
        CONFIGURATION section.

19990628:
        Newsyslog.conf has had a minor, but potentially dangerous,
        change to its username/group syntax.  The old syntax was
        user.group, while the new syntax is user:group.

19990627:
        Inetd wrapping default has changed.  Please see the updated
        man page for details.

19990623:
        Compaq Smart Raid driver committed as ida.

19990622:
        The second phase of syscons cleanup has happened.  Some
        functionality has been made optional.  For details, see
        http://www.freebsd.org/~yokota/sc_update-June.txt
        Everyone will need to re-config(8) their kernels, but old
        binaries will work with the new kernel.

19990620:
        IPFW uid/gid-based filtering support has been committed. This
        breaks binary compatibility with previous copies of
        ipfw(8). Any utilities using the ioctl()s of ipfw (especially
        ipfw(8)) need to be recompiled with the newest headers
        installed.

19990618:
        Inetd now wraps all stream-based services, including internals.
        Syslog "severity" options are honoured. Installed syslog.conf
        and hosts.allow should be checked.

19990509:
        Most of the problems with newbus have been corrected, but
        it is still current and evolving.

        libcam's ABI has changed.  You must recompile the world and
        any ports that use it.

19990427:
        Massive changes to SMP went into the tree that should speed
        things up.  However, if you experience problems with SMP 
        machines, you can back off to the PRE_SMP_VMSHARE tag in the
        CVS repository (or run an MP kernel).

19990420:
        Pccardd and the pccard bus in general seem to be broken or
        most people.  Soren has patches to make it better for some,
        but not all people.  Work is underway to make it better for
        all people.

19990416:
        new bus changes integrated into -current.  Many problems were
        initially reported, but most have been fixed.  You'll need a
        new config and to tweak your kernel config file the way that
        GENERIC was tweaked.  Keep a copy of your old kernel when
        upgrading in case your new kernel doesn't work (and report the
        breakage to current@freebsd.org).

        As of 19990421 the remaining problems/quirks are

        o sio no longer supports pnp nor pccard.  This will be corrected,
          but the new pccard code needs to be completed.
        o Some of the sound drivers broke for some people.  It seems
          inconsistent as to who/what/when/where things broke.
        o Duplicate device entries in your config do not work.  Previously
          they were silently ignored.  psm0 seems to be the most common
          duplicate choice, although some reports have come in from people
          that wired their scsi disk entries.
        o You must move the keyboard and mouse attachments from the
          isa bus to the atkbdc bus.  See GENERIC for details.
        o Machines with multiple host-pci bridges (Intel 450NX) will not
          probe the second pci bus.
        o Some probe ordering may have changed, so device naming may change
          with the new kernel.  If you have multiple devices, please double
          check to make sure they didn't move.  This is especially true
          for cards on different buses.
        o The bus attachment for vga0 is always isa0 and never pci0 when
          it is in fact a pci card.  It is safe to ignore this.
        o The format of the boot messages has changed (and is not
          guaranteed to be constant for a while) so you may see this
          in some shell scripts that diff dmesg from day to day as well
          as scripts that parse dmesg output.

19990414:
        cc -aout sometimes has problems compiling with -g, remove -g
        from those compilation units affected until this is corrected.

        cc -aout has problems with producing some threaded libraries,
        so make world -DWANT_AOUT is not functional at this time.

        Since make world for a.out isn't functional, you cannot do
        make aout-to-elf from a pre-egcs a.out system.  To work around
        this problem, make aout-to-elf using 3.1-stable first (or a
        pre egcs -current) and then a simple make world will take you
        the rest of the way with a -current source base.

19990413:
        Make -j works again for make world.  As always, use it with
        care, and be sure to try a make world w/o -j before reporting
        problems (that is, know if the problem exists w/o -j before
        reporting the problem with -j).

19990413:
        Note cc -aout, which had been broken since the conversion to
        egcs, now supposedly works.  If you have rebuilt things like
        XFree86 a.out libraries, you should rebuild them again or
        progams that use them, including netscape, will fail to work.

19990409:
        NOTE: New c++ compiler cannot be used with c++ binaries from
        the old compiler and vice versa.

19990408:
        In recent days egcs has been imported into the tree.  A number
        of problems have been discussed in -current.  Here is a highlight
        of a few of the more common ones.  With the exception of make
        -j n, they have been claimed to have been fixed.

        c++ is broken after make world: This is correct.  Because we
        changed compilers two make worlds are necessary to get C++
        working again.  The code generated by the old compiler and new
        compiler are not compatible, so things wind up being
        undefined.

        cpp is broken in make world:  There was a window where cpp
        would be built incorrectly.  The fix for this is
                cd src/gnu/usr.bin/cc
                make clean
                make all
                make install
        and this should correct your problems.  See the -current
        archives for a version of this that does moer cleaning.

        Make -j n doesn't work.  Work contiunes to make this work,
        I've seen no reports of success as of April 7th.

19990329:
        Previously, one would define "NOAOUT" to keep from building
        the legacy a.out bits.  Now one would define "WANT_AOUT" to
        build them.

19990316:
        The name of the old wd.c and atapi.c based CDROM driver has
        been changed back to wcd. So update your config file to use
        "device wcd" instead of "device acd".

19990314:
        For those of you using the VN device as a loadable module,
        please be aware that the new VN device has been committed to
        -4.x and cannot yet be used as a loadable module.  This will
        be fixed in the future.
        
19990309:
        New loader.rc mechanism.  Please see src/sys/boot/README for
        details.

19990225:
        struct proc size changed.  Recompile kernel and the
        usual suspects.  Make world if in doubt.

19990214:
        The nlpt driver has changed names back to be the lpt driver.
        See ppbus(4) or http://www.freebsd.org/~nsouch/ppbus.html
        for proper configuration details.

19990210:
        The 'lpt' driver is now obsolete.  Replace it with the 'nlpt'
        driver and 'ppbus' controller combination.

19990209:
        New devstat API requires recompilation of libdevstat, systat,
        iostat, vmstat and rpc.rstatd.  A new kernel is also required.
        make world + building a kernel should do all of this.  Any
        ports that use devstat need to be recompiled as well.

19990125:
        Linux threads options has gone away (they are now standard in
        the FreeBSD kernel).  A recompile of all libkvm using programs
        is in order (or better yet a make world).

19990122:
        On or about this date there was a small window when the boot
        blocks had some minor problems which seemed to force one to
        edit /etc/fstab.  This has been corrected, if you are seeing this
        problem, please rebuild and reinstall your boot blocks.

19990121:
        Vinum has changed.  The "vinum read" command has changed.  For
        updates, please see

http://www.freebsd.org/cgi/getmsg.cgi?fetch=800363+0+current/freebsd-current

        for details.  

        Matt Dillon committed a boatload of VM changes, for
        information please see

http://www.freebsd.org/cgi/getmsg.cgi?fetch=886676+0+current/freebsd-current
        or
http://www.freebsd.org/cgi/getmsg.cgi?fetch=827400+0+current/freebsd-current

        for details.  These changes will likely not impact anybody,
        but large chagnes to the VM need at least a heads up.

19990120:
        Stable branch created.  You might want to consider using this
        branch.  It is tagged with RELENG_3.

19990119:
        More work on the syscons driver has been committed.  Since
        files moved around, you will need to reconfigure your kernel,
        and make clean; make depend before rebuilding the kernel.  No
        config file changes are needed.

19990111:
        New keyboard and video card drivers are introduced as the first
        stage of console driver reorganization.  You are required to
        update the kernel configuration file and rebuild the kernel.
        kbdcontrol, vidcontrol, and screen savers also need recompilation.
        The instruction can be found in

                http://www.freebsd.org/~yokota/sc_update.txt

        It has notes on splash screen too.

19990106:
        Robert Nordier was kind enough to make this page to enable people to
        install the new bootblocks:

                http://www.freebsd.org/~rnordier/boot.txt

        When updating to ELF, make sure that you have updated your
        /etc/rc files which have different ldconfig invocations for
        elf and aout.  Otherwise things like X will stop working with
        messages about being unable to find library files.  The
        mergemaster utility in ports/sysutils/mergemaster helps to
        keep critical files like this in sync, and its use is
        recommended.

19990104:
        Information about ELF day (see 19981230) can be found in

                http://www.freebsd.org/~peter/elfday.html

        about the upcoming change, its motivations and instructions
        for doing the upgrade.

19981230:
        You should install new bootblocks now.  The ELF kernel will
        become default soon.  In addition, you'll need to upgrade
        your userland programs to ELF before then as well.  Use
        make aout-to-elf to upgrade your userland programs (old
        a.out programs in, for example, /usr/local/bin will
        continue to work, even after the upgrade).  See src/Makefile
        for more details.

19981224:
        The old wcd driver has been deleted from the kernel.  The
        driver that replaces it is named acd.  You'll need to change
        this in your configuration files.

        Failure to do this will result in "ATAPI CD-ROMs not
        configured" at boot time.

        The floppy tape driver (ft) has been removed from the kernel,
        with no replacement driver.

19981202:
        New groups from 19981201 commented out of mtree, so they
        aren't strictly needed, but still a good idea to have.

19981201:
        New user/group added: bind.  From src/etc/master.passwd and
        src/etc/group:
                % grep <newstuff> /usr/src/etc/group 
                bind:*:53:
                % grep <newstuff> /usr/src/etc/master.passwd 
                tty:*:4:65533::0:0:Tty Sandbox:/:/sbin/nologin
                kmem:*:5:65533::0:0:KMem Sandbox:/:/sbin/nologin
                bind:*:53:53::0:0:Bind Sandbox:/:/sbin/nologin

19981118:
        PAM integrated into the tree.   Requires new /etc/pam.conf file
        to silence warnings from authentication programs (login, etc).
        See src/etc/pam.conf for a sample.

FORMAT:

This file contains a list, in reverse chronologocal order, of major
breakages in tracking -stable.  Not all things will be listed here,
and it only starts on November 18, 1998.  If you have an earlier
version of FreeBSD, you are on your own to get to November 18, 1998.

Please filter your entries through Warner Losh (imp@village.org) so
that the style, formatting, etc of this file can be maintained.

Copyright information:

Copyright 1998-2002 M. Warner Losh.  All Rights Reserved.

Redistribution, translation and use, with or without modification, in
full or in part, are permitted provided that the above copyright
notice is retained.

THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED.  IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.

If you find this document useful, and you want to, you may buy the
author a beer.

$FreeBSD: src/UPDATING,v 1.73.2.81 2003/04/04 06:25:18 murray Exp $