1 .\" Copyright (c) 2002 Murray Stokely <murray@FreeBSD.org>
2 .\" All rights reserved.
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
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32 .Nd "release building infrastructure"
35 provides a complete build environment suitable for users to make
39 All of the tools necessary to build a release are available from the
41 source code repository in
43 A complete release can actually be built with only a single command,
44 including the creation of ISO images suitable for burning to CD-ROM,
45 memory stick images, and an FTP install directory.
46 This command is aptly named
47 .Dq Li "make release" .
49 For some users, it may be desirable to provide an absolutely clean
50 build environment, with no local modifications to the source tree or to
52 and with clean checkouts of specific versions of the doc, src, and ports
53 trees. For this purpose, a script
54 .Pq Pa src/release/generate-release.sh
55 is provided to automate these checkouts and then execute
60 Before attempting to build a release, the user is expected to be
61 familiar with the contents of
63 and should have experience upgrading systems from source.
65 The release build process requires that
67 be populated with the output of
68 .Dq Li "make buildworld"
70 .Dq Li "make buildkernel" .
71 This is necessary to provide the object files for the release or, when
73 .Pa generate-release.sh ,
74 so that the object files for a complete system can be installed into a clean
76 environment. In this second case, the built world must be capable of running
77 on the build system (i.e. it must be for the same architecture and be
78 compatible with the installed kernel).
79 The release procedure on some architectures may also require that the
81 (memory disk) device driver be present in the kernel
82 (either by being compiled in or available as a module).
84 This document does not cover source code management, quality
85 assurance, or other aspects of the release engineering process.
86 .Sh CLEAN RELEASE GENERATION
87 Official releases of FreeBSD are produced in a totally clean environment to
88 ensure consistency between the versions of the src, ports, and doc trees
89 and to avoid contamination from the host system (e.g. local patches, changes
92 etc.). This is accomplished using the wrapper script
93 .Pa src/release/generate-release.sh .
95 .Ic generate-release.sh
96 svn-branch scratch-dir
98 .Ic generate-release.sh
100 .Dq Li "make installworld"
105 It then checks out the src tree specified by
109 and (optionally) the ports and documentation trees using
113 Once the various source trees have been obtained, it executes
114 .Dq Li "make release"
117 environment and places the result in
119 Note that because this uses a chroot, it cannot be used to cross-build
123 Environment variables:
124 .Bl -tag -width ".Cm MAKE_FLAGS"
126 The CVSUP server to use for the doc and ports trees. One of
130 must be specified for ports and documentation to be included in the release.
134 CVS repository to use for the doc and ports trees. One of
138 must be specified for ports and documentation to be included in the release.
142 is set, that tag will be used for CVS checkouts (doc and ports), otherwise
143 .Ic generate-release.sh
146 This environment variable can be set to pass flags (e.g. -j) to
148 when invoked by the script.
150 The location of the FreeBSD SVN source repository. Defaults to
151 .Pa svn://svn.freebsd.org/base .
153 Optional base name for generated media images (e.g. FreeBSD-9.0-RC2-amd64).
154 Defaults to the output of
155 .Ic `uname -s`-`uname -r`-`uname -p`
160 .Pq Pa src/release/Makefile
162 Most developers will only be concerned with the
167 .\" XXX: Some sort of introduction to this list? All the others have one.
168 .Bl -tag -width ".Cm packagesystem"
170 Meta-target to build all release media and distributions applicable to this
173 Copy all produced release media to
176 Builds installation CD-ROM images. On some systems, this may require that
179 .Pq Pa sysutils/cdrtools
180 and possibly that the
182 (memory disk) device driver be present in the kernel
183 (either by being compiled in or available as a module). This target
184 produces files called
190 Builds an installation memory stick image named
192 Not applicable on all platforms. Requires that the
194 (memory disk) device driver be present in the kernel
195 (either by being compiled in or available as a module).
197 Creates a directory named
199 containing the distribution files used in network installations
200 and suitable for upload to an FTP mirror.
203 Major subtargets called by targets above:
204 .Bl -tag -width ".Cm packagesystem"
206 Generates all the distribution archives (e.g. base, kernel, ports, doc)
207 applicable on this platform.
209 Builds a bootable installation system containing all the distribution files
212 target, and suitable for imaging by the
218 Builds the release documentation.
219 This includes the release notes,
220 hardware guide, and installation instructions. Other documentation (e.g.
221 the Handbook) is built during the
228 .Bl -tag -width ".Va TARGET_ARCH"
230 Location of a directory containing the src tree. By default, the directory
231 above the one containing the makefile
234 Location of a directory containing the ports tree. By default,
236 If it is unset or cannot be found, ports will not be included in the release.
238 Location of a directory containing the doc tree. By default,
240 If it is unset or cannot be found, most documentation will not be included in
245 If defined, the Ports Collection will be omitted from the release.
247 If set, do not include system source code in the release.
249 If defined, the SGML-based documentation from the
251 Documentation Project will not be built.
254 distribution will still be created with the minimal documentation set
258 The target hardware platform.
259 This is analogous to the
262 This is necessary to cross-build some target architectures.
263 For example, cross-building for PC98 machines requires
264 .Va TARGET_ARCH Ns = Ns Li i386
266 .Va TARGET Ns = Ns Li pc98 .
269 defaults to the current hardware platform.
271 The target machine processor architecture.
272 This is analogous to the
275 Set this to cross-build for a different architecture.
278 defaults to the current machine architecture, unless
280 is also set, in which case it defaults to the appropriate
281 value for that platform.
282 Typically, one only needs to set
287 .It Pa /usr/doc/Makefile
288 .It Pa /usr/doc/share/mk/doc.project.mk
289 .It Pa /usr/ports/Mk/bsd.port.mk
290 .It Pa /usr/ports/Mk/bsd.sites.mk
291 .It Pa /usr/share/examples/etc/make.conf
292 .It Pa /usr/src/Makefile
293 .It Pa /usr/src/Makefile.inc1
294 .It Pa /usr/src/release/Makefile
295 .It Pa /usr/src/release/generate-release.sh
298 The following sequence of commands can be used to build a
299 .Dq "-CURRENT snapshot":
300 .Bd -literal -offset indent
302 svn co svn://svn.freebsd.org/base/head src
304 make buildworld buildkernel
307 make install DESTDIR=/var/freebsd-snapshot
310 After running these commands, all produced distribution files (tarballs
311 for FTP, CD-ROM images, etc.) are available in the
312 .Pa /var/freebsd-snapshot
315 The following sequence of commands can be used to build a
316 .Dq "-CURRENT snapshot"
317 in a clean environment, including ports and documentation:
318 .Bd -literal -offset indent
322 export CVSUP_HOST=cvsupN.freebsd.org
323 sh generate-release.sh head /local3/release
326 After running these commands, all prepared release files are available in the
327 .Pa /local3/release/R
334 .Xr svn 1 Pq Pa ports/devel/subversion-freebsd ,
344 .%T "FreeBSD Release Engineering"
345 .%U http://www.FreeBSD.org/doc/en_US.ISO8859-1/articles/releng/
348 .%T "FreeBSD Release Engineering of Third Party Packages"
349 .%U http://www.FreeBSD.org/doc/en_US.ISO8859-1/articles/releng-packages/
352 .%T "FreeBSD Developers' Handbook"
353 .%U http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/developers-handbook/
358 used a manual checklist, compiled by
360 to produce a release.
361 Apart from being incomplete, the list put a lot of specific demands on
362 available file systems and was quite torturous to execute.
366 release engineering effort, significant
367 effort was spent getting
368 .Pa src/release/Makefile
369 into a shape where it could at least automate most of the tediousness
370 of building a release in a sterile environment.
375 .Pa src/release/Makefile
376 was overhauled and the wrapper script
377 .Pa src/release/generate-release.sh
378 introduced to support the introduction of a new installer.
380 At near 1000 revisions spread over multiple branches, the
383 .Pa src/release/Makefile
384 contains a vivid historical record of some
385 of the hardships release engineers go through.
387 .Pa src/release/Makefile
388 was originally written by
393 .An Poul-Henning Kamp .
394 This manual page was written by
395 .An Murray Stokely Aq murray@FreeBSD.org .