4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
7 .\" 1. Redistributions of source code must retain the above copyright
8 .\" notice, this list of conditions and the following disclaimer.
9 .\" 2. Redistributions in binary form must reproduce the above copyright
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13 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
14 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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17 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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25 .\" $FreeBSD: src/share/man/man7/build.7,v 1.19.2.1 2002/03/18 08:33:02 murray Exp $
32 .Nd information on how to build the system
36 system and applications is located in
38 This directory contains the
40 sources, which is loosely defined as the things required to rebuild
41 the system to a useful state.
42 It also contains the source for the system documentation, including
46 for more information on how to obtain the
50 Third party applications have to be built using the
55 has targets for obtaining the dports tree.
60 gives specifics on how to obtain the tree for building packages.
66 to build and install the things in that directory.
69 command in any directory or
70 subdirectory of those directories has the same effect as issuing the
71 same command in all subdirectories of that directory.
72 With no target specified, the things in that directory are just built.
73 The following list provides the names and actions for other targets:
74 .Bl -tag -width ".Cm install"
76 Removes any files created during the build process.
78 Installs the results of the build for this directory.
84 .Bl -tag -width ".Cm installworld-force"
86 Rebuild everything but the kernel.
90 but skip bootstrap, build and cross-build tool steps.
91 This target can be used for incremental upgrades once a full build of the
92 world has been done with
97 but also skip the depend step.
99 Just do the bootstrap, build and cross-build steps.
101 Install everything built by
103 .It Cm installworld-force
106 This will install to a temporary directory, then copy the main binaries
107 and libraries with a static
111 and finally will issue a normal
115 It is a special case to be used on older systems as a last resort when
123 Rebuild the kernel and the kernel-modules.
125 Rebuild the kernel and the kernel-modules using native tools.
129 but do not clean out the obj modules.
130 This target can be used for incremental upgrades once a full
131 build of the kernel has been done with
133 .It Cm realquickkernel
136 but also skip the depend step.
138 Install the kernel and the kernel-modules.
139 .It Cm reinstallkernel
140 Reinstall the kernel and the kernel-modules.
145 Perform certain upgrades that have to be done before
147 such as adding new users and groups.
149 will complain if they have not been done.
151 Upgrade the files in /etc and also setup the rest of the system for
156 Build and install the statically linked rescue tools.
158 Create the initial ramdisk based on the above rescue tools and install.
160 Build user commands, no libraries or include files.
162 Install user commands, no libraries or include files.
164 Manually archive binaries from installed world to location specified by
167 Delete archive created by
169 .It Cm backup-auto-clean
170 Delete archive created automatically during
173 Restore binaries from archive created by
175 .It Cm restoreworld-auto
176 Restore binaries from archive created automatically during
178 The archive location is specified by
182 .Bl -tag -width ".Ev MAKEOBJDIRPREFIX"
183 .It Ev TARGET_ARCH , TARGET_PLATFORM
184 The target machine processor architecture and hardware platform.
185 These have to be set for cross-building.
192 architecture known as AMD64, x86-64 or Intel 64, use:
193 .Bd -literal -offset indent
198 An existing directory to be the root of
199 the hierarchy where the resulting binaries will be
200 installed (the default is
202 .It Ev MAKEOBJDIRPREFIX
203 The directory hierarchy where the object files will be built (the default is
206 Used to override the path of
209 .Pa /etc/make.conf ) .
211 The name of one or more kernel configurations from which kernels should
212 be built (the default is
213 .Li X86_64_GENERIC ) .
215 The directory where the kernel configuration files are kept (the default is
216 .Pa /usr/src/sys/config ) .
218 Common suffix added to kernel and modules directory names, prefixed by
219 a single dot. For example,
220 .Bd -literal -offset indent
221 make DESTLABEL=test installkernel
225 .Pa /boot/kernel.test/kernel
227 .Pa /boot/kernel.test ,
230 Where to install the kernel and the modules (the default is
232 in the directory hierarchy specified by the environment variable
235 The name of the installed kernel file (the default is
237 under the directory specified by
239 This overrides the effect of
241 .It Ev DESTMODULESNAME
242 The name of the directory to install the kernel modules (the default is
244 under the directory specified by
246 This overrides the effect of
249 Directory for manual backup of binaries of installed world (default:
250 .Pa /var/backups/world_backup ) .
252 Directory for automatic backup of binaries of installed world (default:
253 .Ev MAKEOBJDIRPREFIX Ns /world_binaries/ Ns Ev DESTDIR ) .
255 When defined, the automatic backup feature of
259 Overrides the default optimization flags for kernel and module compiles.
261 Allows you to add additional compiler flags for kernel and module compiles.
264 to specify any optimization overrides, as some modules may have to override
265 it to enforce a lower optimization level.
268 There are two other mechanisms that users should be aware of. First,
272 will make a backup of the current kernel in
273 .Pa /boot/kernel.old .
274 Because people often do multiple installkernel operations, this backup
275 kernel can also get lost in the noise.
276 It is usually prudent to make a backup of the old kernel manually
277 every once in a while when you know that it is a good kernel. you can
278 do this after issuing the
280 by running the command:
281 .Bd -literal -offset indent
282 cpdup /boot/kernel.old /boot/kernel.bak
285 The advantage of this is that no installation mechanism will overwrite
287 .Pa /boot/kernel.bak ,
288 and in addition to that the loader's boot menu will check for its
289 existence and present a menu option 'b' to allow you to boot from it.
291 The second mechanism is related to the two-stage root mount.
292 When using an encrypted root, the system will actually boot from a
293 small initial ramdisk (a.k.a. initrd) image stored as
294 .Pa /boot/kernel/initrd.img.gz .
295 This image will handle the encrypted configuration, mount, and chroot
297 This image is also used as the rescue ramdisk boot menu option.
298 This image is NOT updated automatically by
302 Instead, updating this image has to be done by running the manual command:
303 .Bd -literal -offset indent
307 It is usually a good idea to run this command after rebooting into the new
308 world that you installed (so you know the world you installed is good).
309 This command will update the initrd image in
312 .Bl -tag -width ".Pa /usr/src/Makefile_upgrade.inc" -compact
313 .It Pa /etc/make.conf
314 .It Pa /etc/defaults/make.conf
315 .It Pa /usr/src/share/doc/Makefile
316 .It Pa /usr/src/Makefile
317 .It Pa /usr/src/Makefile.inc1
318 .It Pa /usr/src/Makefile_upgrade.inc
323 method of updating your system from the latest sources is:
324 .Bd -literal -offset indent
326 make buildkernel KERNCONF=FOO
327 make installkernel KERNCONF=FOO
332 After running these commands a system reboot is required,
333 otherwise many programs which have been rebuilt (such as
336 etc.) may not work with the old kernel which is still running.
338 The build and install order in the
340 section enforces that the new kernel is installed before the new
342 Sometimes it might be necessary to reboot the system between those two
345 .Dq Nm make Cm installworld
346 will tell you to do so.
361 .An Mike W. Meyer Aq Mt mwm@mired.org
363 .An Sascha Wildner Aq Mt swildner@gmail.com .