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#!/bin/bash
#
# vim: set ts=4 sw=4 et:
#
#-
# Copyright (c) 2009-2013 Juan Romero Pardines.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#-
set -E
trap "echo; error_out $LINENO $?" INT TERM HUP ERR
readonly PROGNAME=$(basename $0)
info_msg() {
printf "\033[1m$@\n\033[m"
}
error_out() {
info_msg "There was an error in line $1 ... cleaning up $BUILDDIR, exiting."
[ -d "$BUILDDIR" ] && rm -rf "$BUILDDIR"
exit 1
}
write_etc_motd() {
cat >> "$ROOTFS/etc/motd" <<_EOF
###############################################################################
Autogenerated by void-mklive "@@MKLIVE_VERSION@@"
###############################################################################
Welcome to the Void Linux Live system, you have been autologged in.
This user has full sudo(8) permissions without any password, be careful
executing commands through sudo(8).
To start the installation please type:
$ sudo void-installer
and follow the on-screen instructions. Thanks for using Void Linux.
http://www.voidlinux.eu
###############################################################################
_EOF
}
write_conf_file() {
cat > "$1" <<_EOF
# *-*- sh -*-*
# Default configuration file for vmklive-@VERSION@.
#
# List of packages to be installed into the live image.
# NOTE: base-system and dialog packages are always added by default.
#
#PACKAGE_LIST=""
# Default keymap to use.
KEYMAP=us
# Default locale to use.
LOCALE=en_US.UTF-8
# Path to XBPS utilities.
#XBPS_INSTALL_CMD=xbps-install
#XBPS_QUERY_CMD=xbps-query
#XBPS_RECONFIGURE_CMD=xbps-reconfigure
#XBPS_REMOVE_CMD=xbps-remove
#XBPS_RINDEX_CMD=xbps-rindex
#XBPS_UHELPER_CMD=xbps-uhelper
# XBPS cache directory to install packages from.
#REPOSITORY_CACHE=/blah/foo
_EOF
chmod 644 "$1"
}
usage() {
cat <<_EOF
Usage: $(basename $0) [options]
Options:
-C file Path to configuration file (defaults to ~/.mklive.conf)
-c (gzip|bzip2|xz) Compression type for the initramfs/squashfs image.
-r rootdir Use this directory to generate the image (if unset, defaults to cwd).
-o outfile Output file name for the ISO image.
-s splash Splash image file for isolinux.
-V Show version.
_EOF
exit 1
}
copy_void_keys() {
if [ ! -d "$1"/var/db/xbps/keys ]; then
mkdir -p "$1"/var/db/xbps/keys
cp /var/db/xbps/keys/*.plist "$1"/var/db/xbps/keys
fi
}
install_packages() {
for f in ${PACKAGE_LIST}; do
info_msg " $f"
done
# Check that all pkgs are reachable.
${XBPS_INSTALL_CMD} ${XBPS_ARGS} -n ${PACKAGE_LIST} >>$LOGFILE 2>&1
if [ $? -ne 0 ]; then
info_msg "Missing required binary packages, exiting..."
error_out
fi
${XBPS_INSTALL_CMD} ${XBPS_ARGS} ${PACKAGE_LIST} >>$LOGFILE 2>&1
${XBPS_INSTALL_CMD} ${XBPS_ARGS} -u >>$LOGFILE 2>&1
${XBPS_REMOVE_CMD} ${XBPS_ARGS} -o >>$LOGFILE 2>&1
# Enable choosen UTF-8 locale and generate it into the target rootfs.
sed -e "s/\#\(${LOCALE}.*\)/\1/g" -i $ROOTFS/etc/default/libc-locales
xbps-uchroot $ROOTFS xbps-reconfigure -f glibc-locales >>$LOGFILE 2>&1
if [ -x installer.sh ]; then
install -Dm755 installer.sh $ROOTFS/usr/sbin/void-installer
else
install -Dm755 /usr/sbin/void-installer $ROOTFS/usr/sbin/void-installer
fi
}
copy_dracut_files() {
mkdir -p $1/usr/lib/dracut/modules.d/01vmklive
cp dracut/*.sh $1/usr/lib/dracut/modules.d/01vmklive/
}
generate_initramfs() {
copy_void_keys $ROOTFS/kernel_temp
copy_dracut_files $ROOTFS/kernel_temp
# Install required pkgs in a temporary rootdir to create
# the initramfs and to copy required files.
$XBPS_INSTALL_CMD -r $ROOTFS/kernel_temp -Sy \
base-system -c $REPOSITORY_CACHE >>$LOGFILE 2>&1
xbps-uchroot $ROOTFS/kernel_temp /usr/bin/dracut --${COMPRESSTYPE} \
--force-add "vmklive" "/boot/initrd.lz" $KERNELVERSION >>$LOGFILE 2>&1
mv $ROOTFS/kernel_temp/boot/initrd.lz $BOOT_DIR
cp $ROOTFS/kernel_temp/boot/vmlinuz-$KERNELVERSION $BOOT_DIR/vmlinuz
rm -rf $ROOTFS/kernel_temp
}
generate_isolinux_boot() {
cp -f $SYSLINUX_DATADIR/isolinux.bin "$ISOLINUX_DIR"
cp -f $SYSLINUX_DATADIR/ldlinux.c32 "$ISOLINUX_DIR"
cp -f $SYSLINUX_DATADIR/libcom32.c32 "$ISOLINUX_DIR"
cp -f $SYSLINUX_DATADIR/vesamenu.c32 "$ISOLINUX_DIR"
cp -f $SYSLINUX_DATADIR/libutil.c32 "$ISOLINUX_DIR"
cp -f $SYSLINUX_DATADIR/chain.c32 "$ISOLINUX_DIR"
cp -f isolinux/isolinux.cfg.in "$ISOLINUX_DIR"/isolinux.cfg
cp -f isolinux/${SPLASH_IMAGE} "$ISOLINUX_DIR"
sed -i -e "s|@@SPLASHIMAGE@@|${SPLASH_IMAGE}|" \
-e "s|@@KERNVER@@|${KERNELVERSION}|" \
-e "s|@@KEYMAP@@|${KEYMAP}|" \
-e "s|@@ARCH@@|$(uname -m)|" \
-e "s|@@LOCALE@@|${LOCALE}|" $ISOLINUX_DIR/isolinux.cfg
}
generate_grub_efi_boot() {
cp -f grub/grub.cfg $GRUB_DIR
cp -f grub/grub_void.cfg.in $GRUB_DIR/grub_void.cfg
sed -i -e "s|@@SPLASHIMAGE@@|${SPLASH_IMAGE}|" \
-e "s|@@KERNVER@@|${KERNELVERSION}|" \
-e "s|@@KEYMAP@@|${KEYMAP}|" \
-e "s|@@ARCH@@|$(uname -m)|" \
-e "s|@@LOCALE@@|${LOCALE}|" $GRUB_DIR/grub_void.cfg
mkdir -p $GRUB_DIR/fonts
cp -f $GRUB_DATADIR/unicode.pf2 $GRUB_DIR/fonts
# Create EFI vfat image.
dd if=/dev/zero of=$GRUB_DIR/efiboot.img bs=1024 count=4096 >>$LOGFILE 2>&1
mkfs.vfat -F12 -S 512 -n "grub_uefi" "$GRUB_DIR/efiboot.img" >>$LOGFILE 2>&1
GRUB_EFI_TMPDIR="$(mktemp --tmpdir=$HOME -d)"
LOOP_DEVICE="$(losetup --show --find ${GRUB_DIR}/efiboot.img)"
mount -o rw,flush -t vfat "${LOOP_DEVICE}" "${GRUB_EFI_TMPDIR}" >>$LOGFILE 2>&1
mkdir -p "${GRUB_EFI_TMPDIR}/EFI/boot/"
cd "$BUILDDIR"
grub-mkstandalone --directory="/usr/lib/grub/x86_64-efi" \
--format="x86_64-efi" \
--compression="xz" --output="${GRUB_EFI_TMPDIR}/EFI/boot/bootx64.efi" \
"boot/grub/grub.cfg" >>$LOGFILE 2>&1
umount "$GRUB_EFI_TMPDIR"
losetup --detach "${LOOP_DEVICE}"
rm -rf $GRUB_EFI_TMPDIR
}
generate_squashfs() {
# Find out required size for the rootfs and create an ext3fs image off it.
modprobe -q loop
ROOTFS_SIZE=$(du -sk "$ROOTFS"|awk '{print $1}')
mkdir -p "$BUILDDIR/tmp/LiveOS"
dd if=/dev/zero of="$BUILDDIR/tmp/LiveOS/ext3fs.img" \
bs="$((${ROOTFS_SIZE}+($ROOTFS_SIZE/6)))K" count=1 >>$LOGFILE 2>&1
mkdir -p "$BUILDDIR/tmp-rootfs"
mkfs.ext3 -F -m1 "$BUILDDIR/tmp/LiveOS/ext3fs.img" >>$LOGFILE 2>&1
mount -o loop "$BUILDDIR/tmp/LiveOS/ext3fs.img" "$BUILDDIR/tmp-rootfs"
cd $BUILDDIR
cp -a rootfs/* tmp-rootfs/
umount -f "$BUILDDIR/tmp-rootfs"
mkdir -p "$BUILDDIR/LiveOS"
mksquashfs "$BUILDDIR/tmp" "$BUILDDIR/LiveOS/squashfs.img" \
-comp ${COMPRESSTYPE} >>$LOGFILE 2>&1
chmod 444 "$BUILDDIR/LiveOS/squashfs.img"
# Remove rootfs and temporary dirs, we don't need them anymore.
rm -rf "$ROOTFS" "$BUILDDIR/tmp-rootfs" "$BUILDDIR/tmp"
}
generate_iso_image() {
xorriso -as mkisofs \
-iso-level 3 -rock -joliet \
-max-iso9660-filenames -omit-period \
-omit-version-number -relaxed-filenames -allow-lowercase \
-volid "VOID_LIVE" \
-eltorito-boot boot/isolinux/isolinux.bin \
-eltorito-catalog boot/isolinux/boot.cat \
-no-emul-boot -boot-load-size 4 -boot-info-table \
-eltorito-alt-boot -e boot/grub/efiboot.img -isohybrid-gpt-basdat -no-emul-boot \
-isohybrid-mbr $SYSLINUX_DATADIR/isohdpfx.bin \
-output "$OUTPUT_FILE" "$BUILDDIR" >>$LOGFILE 2>&1
}
#
# main()
#
while getopts "C:c:o:r:s:hV" opt; do
case $opt in
C) CONFIG_FILE="$OPTARG";;
c) COMPRESSTYPE="$OPTARG";;
o) OUTPUT_FILE="$OPTARG";;
r) ROOTDIR="$OPTARG";;
s) SPLASH_IMAGE="$OPTARG";;
h) usage;;
V) echo "$PROGNAME @@MKLIVE_VERSION@@"; exit 0;;
esac
done
shift $(($OPTIND - 1))
# Set defaults
if [ -z "$CONFIG_FILE" ]; then
CONFIG_FILE="$HOME/.mklive.conf"
fi
LOGFILE="$(mktemp -t vmklive-XXXXXXXXXX.log)"
if [ -z "$SYSLINUX_DATADIR" ]; then
SYSLINUX_DATADIR=/usr/share/syslinux
fi
if [ -z "$GRUB_DATADIR" ]; then
GRUB_DATADIR=/usr/share/grub
fi
if [ -z "$SPLASH_IMAGE" ]; then
SPLASH_IMAGE=splash.png
fi
if [ -z "$XBPS_INSTALL_CMD" ]; then
XBPS_INSTALL_CMD=xbps-install
fi
if [ -z "$XBPS_REMOVE_CMD" ]; then
XBPS_REMOVE_CMD=xbps-remove
fi
if [ -z "$XBPS_QUERY_CMD" ]; then
XBPS_QUERY_CMD=xbps-query
fi
if [ -z "$XBPS_RINDEX_CMD" ]; then
XBPS_RINDEX_CMD=xbps-rindex
fi
if [ -z "$XBPS_UHELPER_CMD" ]; then
XBPS_UHELPER_CMD=xbps-uhelper
fi
if [ -z "$XBPS_RECONFIGURE_CMD" ]; then
XBPS_RECONFIGURE_CMD=xbps-reconfigure
fi
if [ -z "$COMPRESSTYPE" ]; then
COMPRESSTYPE=xz
fi
if [ -z "$REPOSITORYCACHE" ]; then
REPOSITORY_CACHE="/var/cache/xbps"
fi
# Create or read configuration file.
if [ ! -r $CONFIG_FILE ]; then
info_msg "Creating config file at $CONFIG_FILE."
write_conf_file $CONFIG_FILE
fi
. $CONFIG_FILE
if [ -z "$PACKAGE_LIST" ]; then
PACKAGE_LIST="base-system dialog"
else
PACKAGE_LIST="base-system dialog $PACKAGE_LIST"
fi
if [ ! -f $SYSLINUX_DATADIR/isolinux.bin ]; then
echo "Missing required isolinux files in $SYSLINUX_DATADIR, exiting..."
exit 1
fi
# Check for root permissions.
if [ "$(id -u)" -ne 0 ]; then
echo "Must be run as root, exiting..."
exit 1
fi
ISO_VOLUME="VOID_LIVE"
if [ -n "$ROOTDIR" ]; then
BUILDDIR=$(mktemp --tmpdir="$ROOTDIR" -d)
else
BUILDDIR=$(mktemp --tmpdir="$(pwd -P)" -d)
fi
BUILDDIR=$(readlink -f $BUILDDIR)
ROOTFS="$BUILDDIR/rootfs"
BOOT_DIR="$BUILDDIR/boot"
ISOLINUX_DIR="$BOOT_DIR/isolinux"
GRUB_DIR="$BOOT_DIR/grub"
ISOLINUX_CFG="$ISOLINUX_DIR/isolinux.cfg"
mkdir -p $ISOLINUX_DIR $GRUB_DIR
#
# Check there are repos registered before anything.
#
${XBPS_QUERY_CMD} -L >/dev/null 2>&1
if [ $? -ne 0 ]; then
echo "No repositories available, exiting..."
error_out
fi
XBPS_ARGS="-r $ROOTFS -y"
XBPS_ARGS="$XBPS_ARGS -c $REPOSITORY_CACHE"
XBPS_VERSION=$($XBPS_QUERY_CMD -V|awk '{print $2}')
case $XBPS_VERSION in
*) ;;
esac
# Sync index for remote repos first.
copy_void_keys $ROOTFS
$XBPS_INSTALL_CMD -r $ROOTFS -S >/dev/null 2>&1
_linux_series=$($XBPS_QUERY_CMD -r $ROOTFS -Rx linux)
KERNELVERSION=$($XBPS_QUERY_CMD -r $ROOTFS -R --property pkgver ${_linux_series})
KERNELVERSION=$($XBPS_UHELPER_CMD getpkgversion $KERNELVERSION)
if [ -z "$OUTPUT_FILE" ]; then
OUTPUT_FILE="void-live-$(uname -m)-${KERNELVERSION}-$(date +%Y%m%d).iso"
fi
info_msg "Redirecting stdout/stderr to $LOGFILE ..."
#
# Install live system and specified packages.
#
info_msg "[1/7] Installing packages into the rootfs..."
install_packages
#
# Prepare /etc/motd.
#
mkdir -p "$ROOTFS"/etc
write_etc_motd
#
# Generate the initramfs.
#
info_msg "[2/7] Generating initramfs image ($COMPRESSTYPE)..."
generate_initramfs
#
# Generate the isolinux boot.
#
info_msg "[3/7] Generating isolinux support for PC-BIOS systems..."
generate_isolinux_boot
#
# Generate the GRUB EFI boot.
#
info_msg "[4/7] Generating GRUB support for EFI systems..."
generate_grub_efi_boot
#
# Generate the squashfs image from rootfs.
#
info_msg "[5/7] Generating squashfs image ($COMPRESSTYPE) from rootfs..."
generate_squashfs
#
# Generate the ISO image.
#
info_msg "[6/7] Generating ISO image..."
generate_iso_image
info_msg "[7/7] Removing build directory..."
rm -rf "$BUILDDIR"
hsize=$(du -sh "$OUTPUT_FILE"|awk '{print $1}')
info_msg "Created $(readlink -f $OUTPUT_FILE) ($hsize) successfully."
exit 0
|