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
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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
245 Set to a non-empty value to include the
249 The command run to obtain the source trees.
251 .Qq Cm svn checkout .
255 .Pq Pa src/release/Makefile
257 Most developers will only be concerned with the
262 .\" XXX: Some sort of introduction to this list? All the others have one.
263 .Bl -tag -width ".Cm packagesystem"
265 Meta-target to build all release media and distributions applicable to this
268 Copy all produced release media to
271 Builds installation CD-ROM images.
274 (memory disk) device driver be present in the kernel
275 (either by being compiled in or available as a module).
276 This target produces files called
282 Builds installation DVD-ROM images.
285 (memory disk) device driver be present in the kernel
286 (either by being compiled in or available as a module).
287 This target produces the
291 Builds an installation memory stick image named
293 Not applicable on all platforms.
297 device driver be present in the kernel
298 .Pq either by being compiled in or available as a module .
302 with the exception that the installation distribution sets
305 Creates a directory named
307 containing the distribution files used in network installations
308 and suitable for upload to an FTP mirror.
311 Major subtargets called by targets above:
312 .Bl -tag -width ".Cm packagesystem"
314 Generates all the distribution archives
315 .Pq base, kernel, ports, doc
316 applicable on this platform.
318 Builds a bootable installation system containing all the distribution files
321 target, and suitable for imaging by the
328 Builds the release documentation.
329 This includes the release notes,
330 hardware guide, and installation instructions.
331 Other documentation, such as the Handbook,
339 .Bl -tag -width ".Ev TARGET_ARCH"
341 Optional base name for generated media images
342 .Pq e.g., FreeBSD-9.0-RC2-amd64 .
343 Defaults to the output of
344 .Ic `uname -s`-`uname -r`-`uname -p`
347 Location of a directory containing the src tree.
348 By default, the directory
349 above the one containing the makefile
352 Location of a directory containing the ports tree.
355 If it is unset or cannot be found, ports will not be included in the release.
357 Location of a directory containing the doc tree.
360 If it is unset or cannot be found, most documentation will not be included in
365 If defined, the Ports Collection will be omitted from the release.
367 If set, do not include system source code in the release.
369 If defined, the XML-based documentation from the
371 Documentation Project will not be built.
374 distribution will still be created with the minimal documentation set
378 The target hardware platform.
379 This is analogous to the
382 This is necessary to cross-build some target architectures.
383 For example, cross-building for PC98 machines requires
384 .Ev TARGET_ARCH Ns = Ns Li i386
386 .Ev TARGET Ns = Ns Li pc98 .
389 defaults to the current hardware platform.
391 The target machine processor architecture.
392 This is analogous to the
395 Set this to cross-build for a different architecture.
398 defaults to the current machine architecture, unless
400 is also set, in which case it defaults to the appropriate
401 value for that platform.
402 Typically, one only needs to set
406 .Bl -tag -compact -width Pa
407 .It Pa /usr/doc/Makefile
408 .It Pa /usr/doc/share/mk/doc.project.mk
409 .It Pa /usr/ports/Mk/bsd.port.mk
410 .It Pa /usr/ports/Mk/bsd.sites.mk
411 .It Pa /usr/share/examples/etc/make.conf
412 .It Pa /usr/src/Makefile
413 .It Pa /usr/src/Makefile.inc1
414 .It Pa /usr/src/release/Makefile
415 .It Pa /usr/src/release/release.sh
416 .It Pa /usr/src/release/release.conf.sample
419 The following sequence of commands can be used to build a
420 .Dq "-CURRENT snapshot":
421 .Bd -literal -offset indent
423 svn co svn://svn.freebsd.org/base/head src
425 make buildworld buildkernel
428 make install DESTDIR=/var/freebsd-snapshot
431 After running these commands, all produced distribution files (tarballs
432 for FTP, CD-ROM images, etc.) are available in the
433 .Pa /var/freebsd-snapshot
436 The following sequence of commands can be used to build a
437 .Dq "-CURRENT snapshot"
438 in a clean environment, including ports and documentation:
439 .Bd -literal -offset indent
444 Optionally, a configuration file can be used customize the release build,
445 such as the subversion revision to use, the branch of the subversion tree for
450 .Bd -literal -offset indent
452 sh release.sh -c $HOME/release.conf
455 After running these commands, all prepared release files are available in the
458 The target directory can be changed by specifying the
466 .Xr svn 1 Pq Pa ports/devel/subversion ,
476 .%T "FreeBSD Release Engineering"
477 .%U http://www.FreeBSD.org/doc/en_US.ISO8859-1/articles/releng/
480 .%T "FreeBSD Release Engineering of Third Party Packages"
481 .%U http://www.FreeBSD.org/doc/en_US.ISO8859-1/articles/releng-packages/
484 .%T "FreeBSD Developers' Handbook"
485 .%U http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/developers-handbook/
490 used a manual checklist, compiled by
492 to produce a release.
493 Apart from being incomplete, the list put a lot of specific demands on
494 available file systems and was quite torturous to execute.
498 release engineering effort, significant
499 effort was spent getting
500 .Pa src/release/Makefile
501 into a shape where it could at least automate most of the tediousness
502 of building a release in a sterile environment.
507 .Pa src/release/Makefile
508 was overhauled and the wrapper script
509 .Pa src/release/generate-release.sh
510 introduced to support the introduction of a new installer.
515 .Pa src/release/release.sh
516 was introduced to support per-build configuration files.
517 .Pa src/release/release.sh
518 is heavily based on the
519 .Pa src/release/generate-release.sh
522 At near 1000 revisions spread over multiple branches, the
525 .Pa src/release/Makefile
526 contains a vivid historical record of some
527 of the hardships release engineers go through.
529 .Pa src/release/Makefile
530 was originally written by
535 .An Poul-Henning Kamp .
537 This manual page was originally written by
538 .An Murray Stokely Aq murray@FreeBSD.org .
541 .An Nathan Whitehorn Aq nwhitehorn@FreeBSD.org
543 .Fa generate-release.sh
548 It was later updated by
549 .An Glen Barber Aq gjb@FreeBSD.org