469 lines
13 KiB
Groff
469 lines
13 KiB
Groff
.\" Copyright (c) 2002 Murray Stokely <murray@FreeBSD.org>
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd March 12, 2002
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.Dt RELEASE 7
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.Os
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.Sh NAME
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.Nm release
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.Nd "release building infrastructure"
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.Sh DESCRIPTION
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.Fx
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provides a complete build environment suitable for users to make
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full releases of the
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.Fx
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operating system.
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All of the tools necessary to build a release are available from the
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CVS repository in
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.Pa src/release .
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A complete release can actually be built with only a single command,
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including the creation of ISO images suitable for burning to CD-ROM,
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installation floppies, and an FTP install directory.
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This command is aptly named
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.Dq Li "make release" .
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.Pp
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Before attempting to build a release, the user is expected to be
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familiar with the contents of
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.Xr build 7 ,
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and should have experience upgrading systems from source with
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.Dq Li "make world" .
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The release build process requires that
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.Pa /usr/obj
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be populated with the output of
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.Dq Li "make buildworld" .
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This is necessary so that the object files for a complete system can
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be installed into a clean
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.Xr chroot 8
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environment.
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The release procedure also requires that the
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.Xr md 4
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(memory disk) device driver be present in the kernel
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(either by being compiled in or loaded as a module).
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.Pp
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This document does not cover source code management, quality
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assurance, or other aspects of the release engineering process.
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.Sh TARGETS
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The release makefile
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.Pq Pa src/release/Makefile
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is fairly abstruse.
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Most developers will only be concerned with the
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.Cm release
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target.
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.\" XXX: Some sort of introduction to this list? All the others have one.
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.Bl -tag -width ".Cm rerelease"
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.It Cm release
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Uses
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.Dq Li "make installworld"
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to install a clean system into a
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.Xr chroot 8
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environment on the file system.
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Checks out the specified version of the source code and then rebuilds
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the entire system in the clean environment with
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.Dq Li "make world" .
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The detailed steps that follow are then executed to package up the
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different distributions, build the installation floppy disks, build
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release documentation, and so on.
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.It Cm rerelease
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Assumes that the output of a release build has been manually modified,
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and performs the minimal number of steps to rebuild the release using
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the intermediate output of the previous
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.Dq Li "make release" .
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.It Cm floppies
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Generate a new set of boot floppies.
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This will call the
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.Cm release.5 ,
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.Cm release.9 ,
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and
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.Cm release.10
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targets to re-generate the floppy images of a previous
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.Dq Li "make release" .
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This is most often used to build custom boot floppies.
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.El
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.Pp
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Targets called by
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.Dq Li "make release" :
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.Bl -tag -width ".Cm release.10"
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.It Cm release.1
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Cleans out the
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.Pa ${CHROOTDIR}/R
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directory and uses
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.Xr mtree 8
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to build the directory hierarchy for the system.
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.It Cm release.2
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Installs the system into the distribution directories.
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.It Cm release.3
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Builds and installs
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.Dq crypto ,
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.Dq krb4
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and
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.Dq krb5
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distributions.
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.It Cm release.4
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.\" XXX: We build more than one kernel. We build a stripped down
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.\" kernel for the boot media in addition to a full GENERIC kernel.
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Makes and installs the
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.Pa GENERIC
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kernel.
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.It Cm release.5
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Uses
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.Xr crunchgen 1
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to build
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.Dq crunched
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binaries to live on the installation floppies.
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.It Cm release.6
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Builds synthetic distributions, and cleans up the previously built
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distribution trees.
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.It Cm release.7
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Creates tarballs of the assembled distribution trees.
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.It Cm release.8
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Makes source distributions.
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.It Cm release.9
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Creates the boot and MFS root floppies.
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.It Cm release.10
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Creates the fixit floppy.
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.It Cm ftp.1
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Sets up a suitable area for FTP installations in
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.Pa ${CHROOTDIR}/R/ftp .
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.It Cm cdrom.1
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Sets up a suitable area to build CD-ROM images in
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.Pa ${CHROOTDIR}/R/cdrom .
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.It Cm iso.1
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Builds two ISO images (installation and
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.Dq live
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file system) from the CD-ROM release area
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(disabled by default, see
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.Va MAKE_ISOS
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below).
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.It Cm doc.1
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Builds all of the necessary tools to turn the
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.Fx
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Documentation Project source documents (SGML, XML) into HTML
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and text documents that will accompany the release.
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Also, builds and installs the actual user documentation.
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This includes the Handbook, FAQ, articles, and so on.
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.It Cm doc.2
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Builds the release documentation.
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This includes the release notes,
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hardware guide, and installation instructions.
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.El
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.Sh ENVIRONMENT
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Variables that must be specified:
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.Bl -tag -width ".Va BUILDNAME"
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.It Va BUILDNAME
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The name of the release to be built.
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This is used to set the
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.Va RELEASE
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value in
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.Pa sys/conf/newvers.sh ,
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which affects the output of
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.Xr uname 1 .
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.It Va CHROOTDIR
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The directory to be used as the
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.Xr chroot 8
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environment for the entire release build.
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.\" XXX: I recommend against hardcoding specific numbers like "2.3" here;
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.\" XXX: perhaps it should be replaced with something to the effect of
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.\" XXX: "we don't know how much space you'll need, but make sure you have
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.\" XXX: at least 3 GB to be safe" (I know i'm still hardcoding a number,
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.\" XXX: but at least it looks less like a decree and more like an estimate.
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This file system should have at least 2.3 gigabytes of free space on the
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i386 architecture.
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.It Va CVSROOT
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The location of the
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.Fx
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CVS repository.
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This path name is in reference to the real system root,
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.Em not
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the root of the
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.Xr chroot 8
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directory tree.
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.El
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.Pp
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Optional variables:
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.Bl -tag -width ".Va PREFETCHDISTFILES"
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.It Va CVSCMDARGS
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Additional arguments for
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.Xr cvs 1
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.Ic checkout
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and
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.Ic update
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commands.
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For example, setting this variable to
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.Dq Li "-D '01/01/2002 00:00:00 GMT'"
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for
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.Dq Li "make release"
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or
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.Dq Li "make rerelease"
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will ask
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.Xr cvs 1
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to check out or update sources as of 00:00:00 GMT, January 1 2002, respectively.
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.It Va DOC_LANG
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The list of languages and encodings the SGML-based documentation
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should be built for.
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If not set, the documentation is built for all available languages.
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.It Va DOCRELEASETAG
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The CVS tag to use when checking out the documentation tree.
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Usually,
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the head of the documentation tree is used by default.
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If
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.Va RELEASETAG
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specifies a release tag,
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then the associated release version is used as the default instead.
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.It Va EXTLOCALDIR
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The directory that will be copied to
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.Pa ${CHROOTDIR}/usr/local .
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.It Va KERNEL_FLAGS
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The contents of this variable are passed to
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.Xr make 1
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when building kernels during the release build.
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For example, setting this variable to
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.Dq Li "-j 4"
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will instruct
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.Xr make 1
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to execute up to four processes at a time.
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.It Va KERNELS
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Specifies a list of additional kernel configurations to compile and
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install into the
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.Dq base
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distribution.
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Each kernel is installed into
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.Pa /boot/<config>
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so that it can be booted from the loader via
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.Dq Li "boot <config>" .
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.It Va LOCAL_PATCHES
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A patch file against
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.Pa /usr/src
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that will be applied in the
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.Xr chroot 8
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environment before the release build begins.
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.It Va PATCH_FLAGS
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Arguments for the
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.Xr patch 1
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command used to apply
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.Va LOCAL_PATCHES
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patch file.
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.It Va LOCAL_SCRIPT
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A script that will be run in the
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.Xr chroot 8
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environment immediately after any local patches are applied.
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.It Va MAKE_ISOS
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If defined, bootable ISO CD-ROM images will be created from the
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contents of the CD-ROM stage directory.
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.It Va NOCDROM
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If defined, the CD-ROM stage directories will not be created.
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.It Va NODOC
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If set to
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.Dq Li YES ,
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the SGML-based documentation from the
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.Fx
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Documentation Project will not be built.
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However, the
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.Dq doc
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distribution will still be created with the minimal documentation set
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provided in
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.Pa src/share/doc .
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.It Va NO_FLOPPIES
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If defined, no floppy disk image files will be created.
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.It Va NOPORTS
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If set to
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.Dq Li YES
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then the Ports Collection will be omitted from the release.
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.It Va NOPORTREADMES
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If defined, readme files will not be created for each individual port
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in the Ports Collection.
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The default behavior is for
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.Dq Li "make release"
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to run
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.Dq Li "make readmes"
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from
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.Pa ${CHROOTDIR}/usr/ports ,
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which can be a very time consuming operation.
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.It Va PORTSRELEASETAG
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The CVS tag to use when checking out the ports tree.
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Usually,
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the head of the ports tree is used by default.
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If
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.Va RELEASETAG
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specifies a release tag,
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then the associated release version is used as the default instead.
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.It Va PREFETCHDISTFILES
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If this variable is defined,
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then distfiles needed during the release build will be downloaded prior to
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entering the
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.Xr chroot 8
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environment.
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Note that this is done after any distfiles are obtained via
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.Va RELEASEDISTFILES .
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.It Va RELEASEDISTFILES
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The directory where the distribution files for ports required by the
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release build can be found.
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This may save a significant amount of time over downloading the
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distfiles through a slow link.
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.It Va RELEASENOUPDATE
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If this variable is defined for
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.Dq Li "make rerelease" ,
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the source code will not be updated with
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.Dq Li "cvs update" .
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.It Va RELEASETAG
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The CVS tag corresponding to the release that is to be built.
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If undefined, the release will be built from the
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.Dv HEAD
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of the CVS tree
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(a
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.Dq "-CURRENT snapshot" ) .
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.It Va TARGET_ARCH
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The target machine processor architecture.
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This is analogous to the
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.Dq Nm uname Fl p
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output.
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Set this to cross-build for a different architecture.
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.It Va TARGET
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The target hardware platform.
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This is analogous to the
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.Dq Nm uname Fl m
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output.
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This is necessary to cross-build some target architectures.
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For example, cross-building for PC98 machines requires
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.Va TARGET_ARCH Ns = Ns Li i386
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and
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.Va TARGET Ns = Ns Li pc98 .
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.It Va WORLD_FLAGS
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The contents of this variable are passed to
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.Xr make 1
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when building world during the release build.
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For example, setting this variable to
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.Dq Li "-j 4"
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will instruct
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.Xr make 1
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to execute up to four processes at a time.
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.El
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.Sh FILES
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.Bl -tag -compact
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.It Pa /etc/make.conf
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.It Pa /usr/doc/Makefile
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.It Pa /usr/doc/share/mk/doc.project.mk
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.It Pa /usr/ports/Mk/bsd.port.mk
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.It Pa /usr/ports/Mk/bsd.sites.mk
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.It Pa /usr/share/examples/etc/make.conf
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.It Pa /usr/src/Makefile
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.It Pa /usr/src/Makefile.inc1
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.It Pa /usr/src/release/Makefile
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.It Pa /usr/src/release/${arch}/drivers.conf
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.It Pa /usr/src/release/${arch}/boot_crunch.conf
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.It Pa /usr/src/release/${arch}/fixit_crunch.conf
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.El
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.Sh EXAMPLES
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The following sequence of commands was used to build the
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.Fx 4.5
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release:
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.Bd -literal -offset indent
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cd /usr
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cvs co -rRELENG_4_5_0_RELEASE src
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cd src
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make buildworld
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cd release
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make release CHROOTDIR=/local3/release BUILDNAME=4.5-RELEASE \\
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CVSROOT=/host/cvs/usr/home/ncvs RELEASETAG=RELENG_4_5_0_RELEASE
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.Ed
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.Pp
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After running these commands, a complete system suitable for FTP or
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CD-ROM distribution is available in the
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.Pa /local3/release/R
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directory.
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.Pp
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The following sequence of commands can be used to build a
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.Dq "-CURRENT snapshot"
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of a
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locally modified source tree:
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.Bd -literal -offset indent
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cd /usr/src
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cvs diff -u > /path/to/local.patch
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make buildworld
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cd release
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make release CHROOTDIR=/local3/release BUILDNAME=5.0-CURRENT \\
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CVSROOT=/host/cvs/usr/home/ncvs LOCAL_PATCHES=/path/to/local.patch
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.Ed
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.Sh SEE ALSO
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.Xr cc 1 ,
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.Xr crunchgen 1 ,
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.Xr cvs 1 ,
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.Xr install 1 ,
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.Xr make 1 ,
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.Xr patch 1 ,
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.Xr uname 1 ,
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.Xr md 4 ,
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.Xr drivers.conf 5 ,
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.Xr make.conf 5 ,
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.Xr build 7 ,
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.Xr ports 7 ,
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.Xr chroot 8 ,
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.Xr mtree 8
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.Rs
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.%T "FreeBSD Release Engineering"
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.%O http://www.FreeBSD.org/doc/en_US.ISO8859-1/articles/releng/
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.Re
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.Rs
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.%T "FreeBSD Release Engineering of Third Party Packages"
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.%O http://www.FreeBSD.org/doc/en_US.ISO8859-1/articles/releng-packages/
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.Re
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.Rs
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.%T "FreeBSD Developers' Handbook"
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.%O http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/developers-handbook/
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.Re
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.Sh HISTORY
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.Fx
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1.x
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used a manual checklist, compiled by
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.An Rod Grimes ,
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to produce a release.
|
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Apart from being incomplete, the list put a lot of specific demands on
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available file systems and was quite torturous to execute.
|
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.Pp
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As part of the
|
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.Fx 2.0
|
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release engineering effort, significant
|
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effort was spent getting
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.Pa src/release/Makefile
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into a shape where it could at least automate most of the tediousness
|
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of building a release in a sterile environment.
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.Pp
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|
With its almost 1000 revisions spread over multiple branches, the
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.Xr cvs 1
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|
log of
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.Pa src/release/Makefile
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contains a vivid historical record of some
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of the hardships release engineers go through.
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.Sh AUTHORS
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.Pa src/release/Makefile
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was originally written by
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.An -nosplit
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.An Rod Grimes ,
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.An Jordan Hubbard ,
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and
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.An Poul-Henning Kamp .
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|
This manual page was written by
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.An Murray Stokely Aq murray@FreeBSD.org .
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