ISO/mkarchiso

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#!/bin/sh
CONFIG="$(pwd)/mkarchiso.conf"
CPIOCONFIG="$(pwd)/mkinitcpio.conf"
DEF_CONFIG_DIR="$(pwd)/default-config"
QUIET="y"
SKIP_INSTALL="n"
SKIP_SQUASHFS="n"
SKIP_BOOTIMG="n"
SKIP_ISO="n"
PKGDIR="."
APPNAME=$(basename "${0}")
ALL_ARGS="${@}"
usage ()
{
echo "usage ${APPNAME} [options] working-directory imagename.iso"
echo " -c CONFIG Use CONFIG file. default: /etc/archlive/mkarchiso.conf"
echo " -i CPIO CONFIG Use CONFIG file for mkinitcpio. default: /etc/archlive/mkinitcpio.conf"
echo " -s a,b,c Skip creation section. Valid sections are:"
echo " install : This section installs all packages."
echo " squashfs: This section creates a squashfs root image"
echo " bootimg : This section creates a boot image."
echo " iso : This section builds the final iso."
echo " -v Verbose output. Default: no"
echo " -h This message."
exit 1
}
skipopts ()
{
for i in $@; do
case $i in
install) SKIP_INSTALL="y" ;;
squashfs) SKIP_SQUASHFS="y" ;;
bootimg) SKIP_BOOTIMG="y" ;;
iso) SKIP_ISO="y" ;;
*) echo "invalid section '$i'"; usage ;;
esac
done
}
while getopts 'c:i:n:s:pvh' arg; do
case "$arg" in
c) CONFIG="$OPTARG" ;;
i) CPIOCONFIG="$OPTARG" ;;
s) OLDIFS=$IFS; IFS=,
skipopts $OPTARG
IFS=$OLDIFS ;;
v) QUIET="n" ;;
h|?) usage ;;
*) echo "invalid argument '$arg'"; usage ;;
esac
done
shift $(($OPTIND - 1))
if [ $# -ne 2 ]; then
usage
else
work_dir=${1}
isoname=${2}
fi
if [ -e "${work_dir}" -a "${SKIP_INSTALL}" != "y" ]; then
echo "Working dir '${work_dir}' already exists, aborting..."
exit 1
fi
if [ -e "${isoname}" -a "${SKIP_ISO}" != "y" ]; then
echo "ISO Image '${isoname}' already exists, aborting..."
exit 1
fi
if [ -e "${CONFIG}" ]; then
source "${CONFIG}"
else
echo "Config '${CONFIG}' does not exist, aborting..."
exit 1
fi
if [ -e "${CPIOCONFIG}" ]; then
source "${CPIOCONFIG}"
else
echo "mkinitcpio config '${CPIOCONFIG}' does not exist, aborting..."
exit 1
fi
isoroot="${work_dir}/iso"
instroot="${work_dir}/install"
if [ -z $FAKEROOTKEY ]; then
echo "Switching to fakeroot environment"
fakeroot ${0} ${ALL_ARGS}
exit $?
fi
_kversion ()
{
echo $(pacman -Ql -r "${instroot}" "${kernelpkg}" |\
grep "/lib/modules/[^/]*/$" |\
sed "s|.*/lib/modules/\([^/]*\).*/$|\1|")
}
#Work-arounds for depmod core dumps.... I guess we could just ulimit for now...
_safepacman ()
{
FAKEROOTSAV=$FAKEROOTKEY; unset FAKEROOTKEY
if ! pacman -Sf --noconfirm -r "${instroot}" $* 2>&1 | grep "\[#"; then
echo "pacman failed to install '$*', aborting..."
exit 1
fi
FAKEROOTKEY=$FAKEROOTSAV
}
safe_install_pkgfile ()
{
if [ -e "${1}" ]; then
toinstall=""
while read pkg; do
#skip packages listed in IGNOREPKGS
echo $ignorepkgs | grep "\<$pkg\>" >/dev/null 2>&1 && continue
toinstall="${toinstall} ${pkg}"
done < ${1}
_safepacman "${toinstall}"
fi
}
_pacman ()
{
FAKEROOTSAV=$FAKEROOTKEY; unset FAKEROOTKEY
if ! fakechroot pacman -Sf --noconfirm -r "${instroot}" $* 2>&1 | grep "\[#"; then
echo "pacman failed to install '$*', aborting..."
exit 1
fi
FAKEROOTKEY=$FAKEROOTSAV
}
install_pkgfile ()
{
if [ -e "${1}" ]; then
toinstall=""
while read pkg; do
echo $ignorepkgs | grep "\<$pkg\>" >/dev/null 2>&1 && continue
toinstall="${toinstall} ${pkg}"
done < ${1}
_pacman "${toinstall}"
fi
}
if [ "${SKIP_INSTALL}" = "n" ]; then
mkdir -p "${isoroot}"
mkdir -p "${instroot}"
FAKEROOTSAV=$FAKEROOTKEY; unset FAKEROOTKEY
if ! pacman -Sy -r "${instroot}" 2>&1 | grep -v "cannot open logfile"; then
echo "Error, failed to sync pacman... aborting."
exit 1
fi
FAKEROOTKEY=$FAKEROOTSAV
echo "Installing 'base' packages..."
install_pkgfile "${PKGDIR}/base.packages"
echo "Installing _required_ packages..."
_pacman "memtest86+ unionfs unionfs-utils usbutils libusb pciutils squashfs-tools"
echo "Installing custom packages..."
for fil in ${package_files}; do
#TODO search for file if not absolute...
echo " Installing packages from file '$fil'"
install_pkgfile "${fil}"
done
for pkg in ${additional_packages}; do
echo " Installing package '${pkg}'"
_pacman "${pkg}"
done
echo "Installing kernel '${kernelpkg}'"
# fakechroot and depmod don't get along well. We'll do that stuff
# manually...
# TODO: fix fakechroot instead of working around it like a jackass
FAKEROOTSAV=$FAKEROOTKEY; unset FAKEROOTKEY
if ! _safepacman "${kernelpkg}" ; then
echo "pacman failed to install '${kernelpkg}', aborting..."
exit 1
fi
FAKEROOTKEY=$FAKEROOTSAV
kernelver=$(_kversion)
kernelsuffix=${kernelver##*-}
echo "Kernel Version ${kernelver} (${kernelsuffix}) installed - installing modules..."
safe_install_pkgfile "modules.${kernelsuffix}"
echo "Updating module dependancies"
[ "${kernelsuffix}" == "ARCH" ] && kernelsuffix=""
depmod -a -b "${instroot}" -v "${kernelver}" -F "${instroot}/boot/System.map26${kernelsuffix}" >/dev/null
find "${instroot}/boot" -name *.img -delete
echo "Applying default configuration for the Arch ISO."
cp -rf ${DEF_CONFIG_DIR}/* "${instroot}"
echo "Copyright (C) 2006, Arch Linux (Judd Vinet)" > "${instroot}/etc/copyright"
echo "Creating initial device nodes "
rm -f "${instroot}/dev/console" "${instroot}/dev/null" "${instroot}/dev/zero"
mknod -m 644 "${instroot}/dev/console" c 5 1
mknod -m 666 "${instroot}/dev/null" c 1 3
mknod -m 666 "${instroot}/dev/zero" c 1 5
echo "Creating default home directory"
mkdir -p "${instroot}/home/arch"
# Cleanup
echo "Cleaning up ISO root files..."
find "${instroot}" -name *.pacnew -name *.pacsave -name *.pacorig -delete
kill_dirs="var/abs var/cache/man var/cache/pacman var/log/* var/mail tmp usr/include initrd"
for x in ${kill_dirs}; do
if [ -e "${instroot}/${x}" ]; then
rm -rf "${instroot}/${x}"
fi
done
find "${instroot}/lib" -name *.a -delete
find "${instroot}/usr/lib" -name *.a -delete
# this actually takes up alot of space...
for d in ${instroot}/var/lib/pacman/*; do
[ "$(basename ${d})" != "local" ] && rm -rf "${d}"
done
if [ -e "${instroot}/boot" ]; then
rm -rf "${isoroot}/boot"
mv "${instroot}/boot" "${isoroot}"
fi
fi
if [ "${SKIP_SQUASHFS}" = "n" ]; then
if [ -e "${isoroot}/archlive.sqfs" ]; then
echo -n "Removing old squashfs image..."
rm "${isoroot}/archlive.sqfs"
echo "done."
fi
echo -n "Creating squashfs image. This may take some time..."
start=$(date +%s)
mksquashfs "${instroot}" "${isoroot}/archlive.sqfs" -root-owned > /dev/null
echo "done in $(echo $start $(date +%s) | awk '{ printf "%0.2f",($2-$1)/60 }') minutes."
fi
if [ "${SKIP_BOOTIMG}" = "n" ]; then
kernelver=$(_kversion)
basedir=${instroot}
[ "${instroot:0:1}" != "/" ] && basedir="$(pwd)/${instroot}"
if ! mkinitcpio -c "${CPIOCONFIG}" -b "${basedir}" -k "${kernelver}"\
-g "${isoroot}/boot/archlive.img"; then
echo "initcpio image creation failed..."
exit 1
fi
cp ${instroot}/usr/lib/grub/i386-pc/* "${isoroot}/boot/grub"
fi
if [ "${SKIP_ISO}" = "n" ]; then
echo "Creating ISO image..."
mkisofs ${q} -r -l -b "boot/grub/stage2_eltorito" -uid 0 -gid 0 -no-emul-boot \
-boot-load-size 4 -boot-info-table -publisher "Arch Linux <archlinux.org>" \
-input-charset=UTF-8 \
-p "prepared by $NAME" -A "Arch Linux Live/Rescue CD" -copyright /etc/copyright \
-o "${isoname}" "${isoroot}"
fi
if [ "${qemu_test}" = "y" ]; then
echo "Testing image via qemu..."
qemu -boot d -kernel-kqemu -cdrom "${isoname}" ${qemuparams}
else
echo "Image completed: ${isoname}"
fi