Live FreeBSD CD

From: Andrew Turner (andrew_at_fubar.geek.nz)
Date: 11/30/04

  • Next message: Michal Mertl: "enhacement to mdmfs" 
    Date: Tue, 30 Nov 2004 21:37:49 +1300
To: FreeBSD Current <freebsd-current@freebsd.org>

    Using nanobsd as a starting point I have created a live CD system I've
    named liveFreeBSD. It requires syutils/cdrtools to create
    liveFreeBSD.iso. Unlike FreeBSIE it only uses files from the tree with 3
    exceptions.

    To use run the shell archive and set WORLDDIR to an appropriate value
    ie. /usr/src.

    It works in a similar way to nanobsd with the exception of the way it is
    customised. To customise liveFreeBSD create a new directory then have
    CUSTOMIZE point to it. If there is a make.conf file in it liveFreeBSD
    will pick it up and use it in the came way as an /etc/make.conf. Any
    directories will have their contents copied.
    eg.
    $ find /home/andrew/FreeBSD -type f
    /home/andrew/FreeBSD/etc/test1.txt
    /home/andrew/FreeBSD/make.conf

    $ make obj
    $ make CUSTOMIZE=/home/andrew/FreeBSD
    Will build the bootable CD with the file /etc/test1.txt. It will bring
    in any Makefile options from /home/andrew/FreeBSD/make.conf

    I have tested this on HEAD and RELENG_5.

    KNOWN BUGS:
    * Customize will only copy files 1 level deep, ie.
    ${CUSTOMIZE}/etc/<file> but not
    ${CUSTOMIZE}/usr/share/<file>

    Andrew 

    -- 
437742420

    # This is a shell archive. Save it in a file, remove anything before
    # this line, and then unpack it by entering "sh file". Note, it may
    # create directories; files and directories will be owned by you and
    # have default permissions.
    #
    # This archive contains:
    #
    # Makefile
    # etc
    # make.conf
    #
    echo x - Makefile
    sed 's/^X//' >Makefile << 'END-of-Makefile'
    X# Copyright (c) 2003-2004 Poul-Henning Kamp.
    X# Copyright (c) 2004 Thomas Quinot.
    X# Copyright (c) 2004 Andrew Turner.
    X#
    X# See /usr/share/examples/etc/bsd-style-copyright for license terms.
    X#
    X# $FreeBSD: src/tools/tools/nanobsd/Makefile,v 1.8 2004/08/16 22:41:58 thomas Exp $
    X
    X#.include "${.CURDIR}/make.conf"
    X
    X# parallism flag for make.
    XMAKEJ?=
    X
    X# You probably do not need to change these.
    XWORLDDIR?= ${.CURDIR}/../../..
    XWD?= ${.OBJDIR}/_.w
    X
    X# Keep overides for custom builds in the ${.CURDIR}/${CUSTOMIZE} directory
    X#CUSTOMIZE?=test
    X
    X.if defined(CUSTOMIZE) && !empty(CUSTOMIZE)
    X.if ${CUSTOMIZE:C/^\/.*$/\//} == "/"
    XCUSTOMIZE_PATH=${CUSTOMIZE}
    X.elif exists(${.CURDIR}/${CUSTOMIZE})
    XCUSTOMIZE_PATH=${.CURDIR}/${CUSTOMIZE}
    X.endif
    X.endif
    X
    X.if exists(${CUSTOMIZE_PATH}/make.conf)
    XMAKE_CONF_INCLUDE=${CUSTOMIZE_PATH}/make.conf
    X.include "${MAKE_CONF_INCLUDE}"
    X.endif
    X
    X#
    X# The final resulting image is in ${.OBJDIR}/_.i and the single slice
    X# image in ${.OBJDIR}/_.i.s1
    X#
    X
    X# Main target
    Xall: buildworld installworld buildimage
    X
    X#
    X# This is where you customizations to the image can be performed
    X# Please make sure to do everything relative to ${WD} here.
    X#
    X.if defined(CUSTOMIZE_PATH)
    XPATHS!= find ${CUSTOMIZE_PATH} -type d -depth 1
    X.endif
    X
    XCustomize: _.cs
    X_.cs: _.iw _.di _.ik _.di
    X.if defined(CUSTOMIZE_PATH)
    X.for __DIR in ${PATHS}
    X @echo ${WD}${__DIR:S/${CUSTOMIZE_PATH}//}
    X mkdir -p ${WD}${__DIR:S/${CUSTOMIZE_PATH}//}
    X -cp ${__DIR}/* ${WD}/${__DIR:S/${CUSTOMIZE_PATH}//}
    X.endfor
    X.endif
    X touch _.cs
    X
    X###########################################################################
    X#
    X# The rest is pretty (or ugly if you prefer) magic, and should generally
    X# not need to be fiddled with. Good luck if you need to venture past this
    X# point.
    X#
    X
    X# Run a buildworld with our private make.conf
    Xbuildworld: _.bw
    X_.bw:
    X (cd ${WORLDDIR} && \
    X make ${MAKEJ} -s buildworld __MAKE_CONF=${.CURDIR}/make.conf \
    X MAKE_CONF_INCLUDE=${MAKE_CONF_INCLUDE} ) > _.bw.tmp 2>&1
    X mv _.bw.tmp _.bw
    X
    X# Run installworld and install into our object directory
    Xinstallworld: _.iw
    X_.iw: _.bw
    X -rm -rf ${WD} > /dev/null 2>&1
    X -chflags -R noschg ${WD} > /dev/null 2>&1
    X rm -rf ${WD}
    X mkdir -p ${WD}
    X (cd ${WORLDDIR} && \
    X make ${MAKEJ} -s installworld \
    X DESTDIR=${WD} \
    X __MAKE_CONF=${.CURDIR}/make.conf \
    X MAKE_CONF_INCLUDE=${MAKE_CONF_INCLUDE} \
    X ) > _.iw.tmp 2>&1
    X mv _.iw.tmp _.iw
    X
    X# Run distribution target in /etc.
    X_.di: _.iw
    X mkdir -p ${WD}
    X (cd ${WORLDDIR}/etc && \
    X make ${MAKEJ} -s distribution \
    X DESTDIR=${WD} \
    X __MAKE_CONF=${.CURDIR}/make.conf \
    X MAKE_CONF_INCLUDE=${MAKE_CONF_INCLUDE} \
    X ) > _.di.tmp 2>&1
    X mv _.di.tmp _.di
    X
    X# Build kernel
    X_.bk:
    X (cd ${WORLDDIR} && \
    X make ${MAKEJ} -s buildkernel \
    X __MAKE_CONF=${.CURDIR}/make.conf \
    X MAKE_CONF_INCLUDE=${MAKE_CONF_INCLUDE} \
    X ) > _.bk.tmp 2>&1
    X mv _.bk.tmp _.bk
    X
    X# Install kernel and hints file
    X_.ik: _.bk _.di
    X cp ${WORLDDIR}/sys/i386/conf/GENERIC.hints ${WD}/boot/device.hints
    X (cd ${WORLDDIR} && \
    X make ${MAKEJ} installkernel \
    X DESTDIR=${WD} \
    X __MAKE_CONF=${.CURDIR}/make.conf \
    X MAKE_CONF_INCLUDE=${MAKE_CONF_INCLUDE} \
    X ) > _.ik.tmp 2>&1
    X mv _.ik.tmp _.ik
    X
    X
    X# Create a disk image from the installed image
    Xbuildimage: _.md
    X_.md: _.cs
    X -umount ${WD}/dev > /dev/null 2>&1
    X chflags -R noschg ${WD} > /dev/null 2>&1
    X rm -rf ${WD}/var/* ${WD}/dev/* ${WD}/tmp
    X ln -s var/tmp ${WD}/tmp
    X cp ${.CURDIR}/etc/* ${WD}/etc
    X mkisofs -R -U -b boot/cdboot -no-emul-boot \
    X -o liveFreeBSD.iso ${WD}
    X touch _.md
    X
    Xclean:
    X -rm -rf _.* > /dev/null 2>&1
    X -chflags -R noschg _.* > /dev/null 2>&1
    X rm -rf _.* liveFreeBSD.iso
    X
    X.include <bsd.obj.mk>
    END-of-Makefile
    echo c - etc
    mkdir -p etc > /dev/null 2>&1
    echo x - make.conf
    sed 's/^X//' >make.conf << 'END-of-make.conf'
    X#
    X# Copyright (c) 2003-2004 Poul-Henning Kamp.
    X# Copyright (c) 2004 Thomas Quinot.
    X# Copyright (c) 2004 Andrew Turner.
    X#
    X# See /usr/share/examples/etc/bsd-style-copyright for license terms.
    X#
    X# $FreeBSD: src/tools/tools/nanobsd/make.conf,v 1.3 2004/08/16 22:52:40 thomas Exp $
    X#
    XKERNCONF?=GENERIC
    X
    X.if defined (MAKE_CONF_INCLUDE) && !empty(MAKE_CONF_INCLUDE) && exists(${MAKE_CONF_INCLUDE})
    X.include "${MAKE_CONF_INCLUDE}"
    X.endif
    X
    END-of-make.conf

    # This is a shell archive. Save it in a file, remove anything before
    # this line, and then unpack it by entering "sh file". Note, it may
    # create directories; files and directories will be owned by you and
    # have default permissions.
    #
    # This archive contains:
    #
    # etc/fstab
    # etc/host.conf
    # etc/nsswitch.conf
    #
    echo x - etc/fstab
    sed 's/^X//' >etc/fstab << 'END-of-etc/fstab'
    X/dev/acd0 / cd9660 ro 0 0
    X
    END-of-etc/fstab
    echo x - etc/host.conf
    sed 's/^X//' >etc/host.conf << 'END-of-etc/host.conf'
    X# Auto-generated from nsswitch.conf, do not edit
    Xhosts
    Xbind
    END-of-etc/host.conf
    echo x - etc/nsswitch.conf
    sed 's/^X//' >etc/nsswitch.conf << 'END-of-etc/nsswitch.conf'
    Xgroup: compat
    Xgroup_compat: nis
    Xhosts: files dns
    Xnetworks: files
    Xpasswd: compat
    Xpasswd_compat: nis
    Xshells: files
    END-of-etc/nsswitch.conf
    exit

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