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
54 For this purpose, a script
55 .Pq Pa src/release/release.sh
56 is provided to automate these checkouts and then execute
61 Before attempting to build a release, the user is expected to be
62 familiar with the contents of
64 and should have experience upgrading systems from source.
66 The release build process requires that
68 be populated with the output of
69 .Dq Li "make buildworld"
71 .Dq Li "make buildkernel" .
72 This is necessary to provide the object files for the release or, when
75 so that the object files for a complete system can be installed into a clean
79 If the target release build is for a different architecture or machine type,
84 variables must be used.
87 variables for more information.
89 The release procedure on some architectures may also require that the
91 (memory disk) device driver be present in the kernel
92 .Pq either by being compiled in or available as a module .
94 This document does not cover source code management, quality
95 assurance, or other aspects of the release engineering process.
96 .Sh CLEAN RELEASE GENERATION
99 are produced in a totally clean environment to
100 ensure consistency between the versions of the src, ports, and doc trees
101 and to avoid contamination from the host system
102 .Po such as local patches, changes
107 This is accomplished using the wrapper script
108 .Pa src/release/release.sh .
111 .Op Fl c Ar release.conf
122 .Dq Li "make buildworld"
124 .Dq Li "make installworld"
129 .Dq Li "make release"
132 environment and places the result in
137 configuration file supports the following variables:
140 The directory within which the release will be built.
144 host used to check out the various trees.
146 .Pa svn://svn.FreeeBSD.org .
166 The target machine type for cross-building a release.
168 The target machine architecture for cross-building a release.
170 For the supported list of
174 combinations, consult the output of
179 The target kernel configuration to use.
184 entries may be specified.
188 to use for the release build.
191 to prevent polluting the release with local system changes.
195 to use for the release build.
198 to prevent polluting the release with local system changes.
200 Additional flags to pass to
203 Additional flags to pass to
208 Defaults to setting the number of
212 to the number of CPUs available on a SMP-capable system.
214 Additional flags to pass to
219 Defaults to setting the number of
223 to half the number of CPUs available on a SMP-capable system.
225 Set to a non-empty value to skip the
232 distribution package from being created.
234 Set to a non-empty value to skip the
241 distribution package from being created.
242 Setting this also sets
247 .Pq Pa src/release/Makefile
249 Most developers will only be concerned with the
254 .\" XXX: Some sort of introduction to this list? All the others have one.
255 .Bl -tag -width ".Cm packagesystem"
257 Meta-target to build all release media and distributions applicable to this
260 Copy all produced release media to
263 Builds installation CD-ROM images.
266 (memory disk) device driver be present in the kernel
267 (either by being compiled in or available as a module).
268 This target produces files called
274 Builds an installation memory stick image named
276 Not applicable on all platforms.
280 device driver be present in the kernel
281 .Pq either by being compiled in or available as a module .
283 Creates a directory named
285 containing the distribution files used in network installations
286 and suitable for upload to an FTP mirror.
289 Major subtargets called by targets above:
290 .Bl -tag -width ".Cm packagesystem"
292 Generates all the distribution archives
293 .Pq base, kernel, ports, doc
294 applicable on this platform.
296 Builds a bootable installation system containing all the distribution files
299 target, and suitable for imaging by the
305 Builds the release documentation.
306 This includes the release notes,
307 hardware guide, and installation instructions.
308 Other documentation, such as the Handbook,
316 .Bl -tag -width ".Ev TARGET_ARCH"
318 Optional base name for generated media images
319 .Pq e.g., FreeBSD-9.0-RC2-amd64 .
320 Defaults to the output of
321 .Ic `uname -s`-`uname -r`-`uname -p`
324 Location of a directory containing the src tree.
325 By default, the directory
326 above the one containing the makefile
329 Location of a directory containing the ports tree.
332 If it is unset or cannot be found, ports will not be included in the release.
334 Location of a directory containing the doc tree.
337 If it is unset or cannot be found, most documentation will not be included in
342 If defined, the Ports Collection will be omitted from the release.
344 If set, do not include system source code in the release.
346 If defined, the XML-based documentation from the
348 Documentation Project will not be built.
351 distribution will still be created with the minimal documentation set
355 The target hardware platform.
356 This is analogous to the
359 This is necessary to cross-build some target architectures.
360 For example, cross-building for PC98 machines requires
361 .Ev TARGET_ARCH Ns = Ns Li i386
363 .Ev TARGET Ns = Ns Li pc98 .
366 defaults to the current hardware platform.
368 The target machine processor architecture.
369 This is analogous to the
372 Set this to cross-build for a different architecture.
375 defaults to the current machine architecture, unless
377 is also set, in which case it defaults to the appropriate
378 value for that platform.
379 Typically, one only needs to set
383 .Bl -tag -compact -width Pa
384 .It Pa /usr/doc/Makefile
385 .It Pa /usr/doc/share/mk/doc.project.mk
386 .It Pa /usr/ports/Mk/bsd.port.mk
387 .It Pa /usr/ports/Mk/bsd.sites.mk
388 .It Pa /usr/share/examples/etc/make.conf
389 .It Pa /usr/src/Makefile
390 .It Pa /usr/src/Makefile.inc1
391 .It Pa /usr/src/release/Makefile
392 .It Pa /usr/src/release/release.sh
393 .It Pa /usr/src/release/release.conf.sample
396 The following sequence of commands can be used to build a
397 .Dq "-CURRENT snapshot":
398 .Bd -literal -offset indent
400 svn co svn://svn.freebsd.org/base/head src
402 make buildworld buildkernel
405 make install DESTDIR=/var/freebsd-snapshot
408 After running these commands, all produced distribution files (tarballs
409 for FTP, CD-ROM images, etc.) are available in the
410 .Pa /var/freebsd-snapshot
413 The following sequence of commands can be used to build a
414 .Dq "-CURRENT snapshot"
415 in a clean environment, including ports and documentation:
416 .Bd -literal -offset indent
421 Optionally, a configuration file can be used customize the release build,
422 such as the subversion revision to use, the branch of the subversion tree for
427 .Bd -literal -offset indent
429 sh release.sh -c $HOME/release.conf
432 After running these commands, all prepared release files are available in the
435 The target directory can be changed by specifying the
443 .Xr svn 1 Pq Pa ports/devel/subversion ,
453 .%T "FreeBSD Release Engineering"
454 .%U http://www.FreeBSD.org/doc/en_US.ISO8859-1/articles/releng/
457 .%T "FreeBSD Release Engineering of Third Party Packages"
458 .%U http://www.FreeBSD.org/doc/en_US.ISO8859-1/articles/releng-packages/
461 .%T "FreeBSD Developers' Handbook"
462 .%U http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/developers-handbook/
467 used a manual checklist, compiled by
469 to produce a release.
470 Apart from being incomplete, the list put a lot of specific demands on
471 available file systems and was quite torturous to execute.
475 release engineering effort, significant
476 effort was spent getting
477 .Pa src/release/Makefile
478 into a shape where it could at least automate most of the tediousness
479 of building a release in a sterile environment.
484 .Pa src/release/Makefile
485 was overhauled and the wrapper script
486 .Pa src/release/generate-release.sh
487 introduced to support the introduction of a new installer.
492 .Pa src/release/release.sh
493 was introduced to support per-build configuration files.
494 .Pa src/release/release.sh
495 is heavily based on the
496 .Pa src/release/generate-release.sh
499 At near 1000 revisions spread over multiple branches, the
502 .Pa src/release/Makefile
503 contains a vivid historical record of some
504 of the hardships release engineers go through.
506 .Pa src/release/Makefile
507 was originally written by
512 .An Poul-Henning Kamp .
514 This manual page was originally written by
515 .An Murray Stokely Aq murray@FreeBSD.org .
518 .An Nathan Whitehorn Aq nwhitehorn@FreeBSD.org
520 .Fa generate-release.sh
525 It was later updated by
526 .An Glen Barber Aq gjb@FreeBSD.org