379 lines
13 KiB
Bash
379 lines
13 KiB
Bash
#!/bin/bash
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#
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# vim: set ts=4 sw=4 et:
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#
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#-
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# Copyright (c) 2009-2014 Juan Romero Pardines.
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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 ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#-
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set -E
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trap "echo; error_out $LINENO $?" INT TERM HUP ERR
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readonly REQUIRED_PKGS="base-files syslinux grub-x86_64-efi squashfs-tools xorriso"
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readonly PROGNAME=$(basename $0)
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info_msg() {
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printf "\033[1m$@\n\033[m"
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}
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error_out() {
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info_msg "There was an error in line $1 ... cleaning up $BUILDDIR, exiting."
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[ -d "$BUILDDIR" ] && rm -rf "$BUILDDIR"
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exit 1
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}
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usage() {
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cat <<_EOF
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Usage: $(basename $0) [options]
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Options:
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-a <xbps-arch> Set XBPS_ARCH (do not use it unless you know what it is)
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-b <system-pkg> Set an alternative base-system package (defaults to base-system).
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-r <repo-url> Use this XBPS repository (may be specified multiple times).
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-c <cachedir> Use this XBPS cache directory (/var/cache/xbps if unset).
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-k <keymap> Default keymap to use (us if unset)
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-l <locale> Default locale to use (en_US.UTF-8 if unset).
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-i <lz4|gzip|bzip2|xz> Compression type for the initramfs image (lz4 if unset).
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-s <gzip|bzip2|xz> Compression type for the squashfs image (xz if unset)
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-S <freesize> Allocate this free size (MB) for the rootfs.
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-o <file> Output file name for the ISO image (auto if unset).
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-p "pkg pkgN ..." Install additional packages into the ISO image.
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-C "cmdline args" Add additional kernel command line arguments.
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-T "title" Modify the bootloader title.
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The $(basename $0) script generates a live image of the Void Linux distribution.
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This ISO image can be written to a CD/DVD-ROM or any USB stick.
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_EOF
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exit 1
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}
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copy_void_keys() {
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mkdir -p "$1"/var/db/xbps/keys
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cp keys/*.plist "$1"/var/db/xbps/keys
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}
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copy_void_conf() {
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install -Dm644 data/void-vpkgs.conf "$1"/usr/share/xbps/virtualpkg.d/void.conf
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}
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install_prereqs() {
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copy_void_conf $VOIDHOSTDIR
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$XBPS_INSTALL_CMD -r $VOIDHOSTDIR $XBPS_REPOSITORY $XBPS_CACHEDIR -y ${REQUIRED_PKGS} >> $LOGFILE 2>&1
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if [ $? -ne 0 ]; then
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info_msg "Failed to install required software, exiting..."
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error_out
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fi
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}
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install_packages() {
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if [ -n "$BASE_ARCH" ]; then
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export XBPS_ARCH="$BASE_ARCH"
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fi
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copy_void_conf $ROOTFS
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# Check that all pkgs are reachable.
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${XBPS_INSTALL_CMD} -r $ROOTFS $XBPS_REPOSITORY $XBPS_CACHEDIR -yn ${PACKAGE_LIST} >>$LOGFILE 2>&1
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if [ $? -ne 0 ]; then
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info_msg "Missing required binary packages, exiting..."
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error_out
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fi
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${XBPS_INSTALL_CMD} -r $ROOTFS $XBPS_REPOSITORY $XBPS_CACHEDIR -y ${PACKAGE_LIST} >>$LOGFILE 2>&1
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${XBPS_INSTALL_CMD} -r $ROOTFS $XBPS_REPOSITORY $XBPS_CACHEDIR -yu >>$LOGFILE 2>&1
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${XBPS_REMOVE_CMD} -r $ROOTFS $XBPS_CACHEDIR -o >>$LOGFILE 2>&1
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# Enable choosen UTF-8 locale and generate it into the target rootfs.
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if [ -f $ROOTFS/etc/default/libc-locales ]; then
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sed -e "s/\#\(${LOCALE}.*\)/\1/g" -i $ROOTFS/etc/default/libc-locales
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xbps-uchroot $ROOTFS xbps-reconfigure -f glibc-locales >>$LOGFILE 2>&1
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fi
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# reconfigure util-linux just to be safe
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xbps-uchroot $ROOTFS xbps-reconfigure -f util-linux >>$LOGFILE 2>&1
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if [ -x installer.sh ]; then
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install -Dm755 installer.sh $ROOTFS/usr/sbin/void-installer
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else
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install -Dm755 /usr/sbin/void-installer $ROOTFS/usr/sbin/void-installer
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fi
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# Cleanup and remove useless stuff.
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rm -rf $ROOTFS/var/cache/* $ROOTFS/run/* $ROOTFS/var/run/*
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unset XBPS_ARCH
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}
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copy_dracut_files() {
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mkdir -p $1/usr/lib/dracut/modules.d/01vmklive
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cp dracut/*.sh $1/usr/lib/dracut/modules.d/01vmklive/
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}
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generate_initramfs() {
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# Install required pkgs in a temporary rootdir to create
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# the initramfs and to copy required files.
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copy_dracut_files $VOIDHOSTDIR
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copy_void_conf $VOIDHOSTDIR
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$XBPS_INSTALL_CMD -r $VOIDHOSTDIR $XBPS_REPOSITORY $XBPS_CACHEDIR -y base-system xz lz4 >>$LOGFILE 2>&1
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if [ "$BASE_SYSTEM_PKG" = "base-system-systemd" ]; then
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_args="--add systemd"
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else
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_args="--omit systemd"
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fi
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xbps-uchroot $VOIDHOSTDIR /usr/bin/dracut --${INITRAMFS_COMPRESSION} \
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--force-add "vmklive" ${_args} "/boot/initrd" $KERNELVERSION >>$LOGFILE 2>&1
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mv $VOIDHOSTDIR/boot/initrd $BOOT_DIR
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cp $VOIDHOSTDIR/boot/vmlinuz-$KERNELVERSION $BOOT_DIR/vmlinuz
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}
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generate_isolinux_boot() {
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cp -f $SYSLINUX_DATADIR/isolinux.bin "$ISOLINUX_DIR"
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cp -f $SYSLINUX_DATADIR/ldlinux.c32 "$ISOLINUX_DIR"
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cp -f $SYSLINUX_DATADIR/libcom32.c32 "$ISOLINUX_DIR"
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cp -f $SYSLINUX_DATADIR/vesamenu.c32 "$ISOLINUX_DIR"
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cp -f $SYSLINUX_DATADIR/libutil.c32 "$ISOLINUX_DIR"
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cp -f $SYSLINUX_DATADIR/chain.c32 "$ISOLINUX_DIR"
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cp -f isolinux/isolinux.cfg.in "$ISOLINUX_DIR"/isolinux.cfg
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cp -f ${SPLASH_IMAGE} "$ISOLINUX_DIR"
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sed -i -e "s|@@SPLASHIMAGE@@|$(basename ${SPLASH_IMAGE})|" \
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-e "s|@@KERNVER@@|${KERNELVERSION}|" \
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-e "s|@@KEYMAP@@|${KEYMAP}|" \
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-e "s|@@ARCH@@|$(uname -m)|" \
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-e "s|@@LOCALE@@|${LOCALE}|" \
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-e "s|@@BOOT_TITLE@@|${BOOT_TITLE}|" \
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-e "s|@@BOOT_CMDLINE@@|${BOOT_CMDLINE}|" \
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$ISOLINUX_DIR/isolinux.cfg
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}
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generate_grub_efi_boot() {
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cp -f grub/grub.cfg $GRUB_DIR
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cp -f grub/grub_void.cfg.in $GRUB_DIR/grub_void.cfg
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sed -i -e "s|@@SPLASHIMAGE@@|$(basename ${SPLASH_IMAGE})|" \
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-e "s|@@KERNVER@@|${KERNELVERSION}|" \
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-e "s|@@KEYMAP@@|${KEYMAP}|" \
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-e "s|@@ARCH@@|$(uname -m)|" \
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-e "s|@@BOOT_TITLE@@|${BOOT_TITLE}|" \
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-e "s|@@BOOT_CMDLINE@@|${BOOT_CMDLINE}|" \
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-e "s|@@LOCALE@@|${LOCALE}|" $GRUB_DIR/grub_void.cfg
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modprobe -q loop || :
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# Create EFI vfat image.
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dd if=/dev/zero of=$GRUB_DIR/efiboot.img bs=1024 count=4096 >>$LOGFILE 2>&1
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mkfs.vfat -F12 -S 512 -n "grub_uefi" "$GRUB_DIR/efiboot.img" >>$LOGFILE 2>&1
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GRUB_EFI_TMPDIR="$(mktemp --tmpdir=$HOME -d)"
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LOOP_DEVICE="$(losetup --show --find ${GRUB_DIR}/efiboot.img)"
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mount -o rw,flush -t vfat "${LOOP_DEVICE}" "${GRUB_EFI_TMPDIR}" >>$LOGFILE 2>&1
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cp -a $IMAGEDIR/boot $VOIDHOSTDIR
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xbps-uchroot $VOIDHOSTDIR grub-mkstandalone --directory="/usr/lib/grub/x86_64-efi" \
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--format="x86_64-efi" \
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--compression="xz" --output="/tmp/bootx64.efi" \
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"boot/grub/grub.cfg" >>$LOGFILE 2>&1
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mkdir -p ${GRUB_EFI_TMPDIR}/EFI/boot
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cp -f $VOIDHOSTDIR/tmp/bootx64.efi ${GRUB_EFI_TMPDIR}/EFI/boot/
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umount "$GRUB_EFI_TMPDIR"
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losetup --detach "${LOOP_DEVICE}"
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rm -rf $GRUB_EFI_TMPDIR
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}
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generate_squashfs() {
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# Find out required size for the rootfs and create an ext3fs image off it.
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ROOTFS_SIZE=$(du -sm "$ROOTFS"|awk '{print $1}')
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if [ -z "$ROOTFS_FREESIZE" ]; then
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ROOTFS_FREESIZE="$((ROOTFS_SIZE/6))"
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fi
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mkdir -p "$BUILDDIR/tmp/LiveOS"
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dd if=/dev/zero of="$BUILDDIR/tmp/LiveOS/ext3fs.img" \
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bs="$((ROOTFS_SIZE+ROOTFS_FREESIZE))M" count=1 >>$LOGFILE 2>&1
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mkdir -p "$BUILDDIR/tmp-rootfs"
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mkfs.ext3 -F -m1 "$BUILDDIR/tmp/LiveOS/ext3fs.img" >>$LOGFILE 2>&1
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mount -o loop "$BUILDDIR/tmp/LiveOS/ext3fs.img" "$BUILDDIR/tmp-rootfs"
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cp -a $ROOTFS/* $BUILDDIR/tmp-rootfs/
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umount -f "$BUILDDIR/tmp-rootfs"
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mkdir -p "$IMAGEDIR/LiveOS"
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mksquashfs "$BUILDDIR/tmp" "$IMAGEDIR/LiveOS/squashfs.img" \
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-comp ${SQUASHFS_COMPRESSION} >>$LOGFILE 2>&1
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chmod 444 "$IMAGEDIR/LiveOS/squashfs.img"
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# Remove rootfs and temporary dirs, we don't need them anymore.
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rm -rf "$ROOTFS" "$BUILDDIR/tmp-rootfs" "$BUILDDIR/tmp"
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}
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generate_iso_image() {
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xorriso -as mkisofs \
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-iso-level 3 -rock -joliet \
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-max-iso9660-filenames -omit-period \
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-omit-version-number -relaxed-filenames -allow-lowercase \
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-volid "VOID_LIVE" \
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-eltorito-boot boot/isolinux/isolinux.bin \
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-eltorito-catalog boot/isolinux/boot.cat \
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-no-emul-boot -boot-load-size 4 -boot-info-table \
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-eltorito-alt-boot -e boot/grub/efiboot.img -isohybrid-gpt-basdat -no-emul-boot \
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-isohybrid-mbr $SYSLINUX_DATADIR/isohdpfx.bin \
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-output "$CURDIR/$OUTPUT_FILE" "$IMAGEDIR" >>$LOGFILE 2>&1
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}
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#
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# main()
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#
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while getopts "a:b:r:c:C:T:k:l:i:s:S:o:p:h" opt; do
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case $opt in
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a) BASE_ARCH="$OPTARG";;
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b) BASE_SYSTEM_PKG="$OPTARG";;
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r) XBPS_REPOSITORY+="--repository=$OPTARG ";;
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c) XBPS_CACHEDIR="--cachedir=$OPTARG";;
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k) KEYMAP="$OPTARG";;
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l) LOCALE="$OPTARG";;
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i) INITRAMFS_COMPRESSION="$OPTARG";;
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s) SQUASHFS_COMPRESSION="$OPTARG";;
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S) ROOTFS_FREESIZE="$OPTARG";;
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o) OUTPUT_FILE="$OPTARG";;
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p) PACKAGE_LIST="$OPTARG";;
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C) BOOT_CMDLINE="$OPTARG";;
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T) BOOT_TITLE="$OPTARG";;
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h) usage;;
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esac
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done
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shift $(($OPTIND - 1))
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# Set defaults
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: ${XBPS_CACHEDIR:=--cachedir=/var/cache/xbps}
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: ${KEYMAP:=us}
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: ${LOCALE:=en_US.UTF-8}
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: ${INITRAMFS_COMPRESSION:=xz}
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: ${SQUASHFS_COMPRESSION:=xz}
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: ${BASE_SYSTEM_PKG:=base-system}
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: ${BOOT_TITLE:="Void Linux"}
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# Required packages in the image for a working system.
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PACKAGE_LIST="$BASE_SYSTEM_PKG $PACKAGE_LIST"
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LOGFILE="$(mktemp -t vmklive-XXXXXXXXXX.log)"
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# Check for root permissions.
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if [ "$(id -u)" -ne 0 ]; then
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echo "Must be run as root, exiting..."
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exit 1
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fi
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readonly CURDIR="$PWD"
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ISO_VOLUME="VOID_LIVE"
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if [ -n "$ROOTDIR" ]; then
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BUILDDIR=$(mktemp --tmpdir="$ROOTDIR" -d)
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else
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BUILDDIR=$(mktemp --tmpdir="$(pwd -P)" -d)
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fi
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BUILDDIR=$(readlink -f $BUILDDIR)
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IMAGEDIR="$BUILDDIR/image"
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ROOTFS="$IMAGEDIR/rootfs"
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VOIDHOSTDIR="$BUILDDIR/void-host"
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BOOT_DIR="$IMAGEDIR/boot"
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ISOLINUX_DIR="$BOOT_DIR/isolinux"
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GRUB_DIR="$BOOT_DIR/grub"
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ISOLINUX_CFG="$ISOLINUX_DIR/isolinux.cfg"
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: ${XBPS_REPOSITORY:=--repository=http://repo.voidlinux.eu/current}
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: ${SYSLINUX_DATADIR:=$VOIDHOSTDIR/usr/share/syslinux}
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: ${SPLASH_IMAGE:=data/splash.png}
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: ${XBPS_INSTALL_CMD:=xbps-install}
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: ${XBPS_REMOVE_CMD:=xbps-remove}
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: ${XBPS_QUERY_CMD:=xbps-query}
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: ${XBPS_RINDEX_CMD:=xbps-rindex}
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: ${XBPS_UHELPER_CMD:=xbps-uhelper}
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: ${XBPS_RECONFIGURE_CMD:=xbps-reconfigure}
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mkdir -p $ROOTFS $VOIDHOSTDIR $ISOLINUX_DIR $GRUB_DIR
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info_msg "Redirecting stdout/stderr to $LOGFILE ..."
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info_msg "[1/9] Synchronizing XBPS repository data..."
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# Sync index for remote repos first.
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copy_void_keys $ROOTFS
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$XBPS_INSTALL_CMD -r $ROOTFS ${XBPS_REPOSITORY} -S
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cp -a $ROOTFS/* $VOIDHOSTDIR
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_linux_series=$($XBPS_QUERY_CMD -r $ROOTFS ${XBPS_REPOSITORY:=-R} -x linux)
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KERNELVERSION=$($XBPS_QUERY_CMD -r $ROOTFS ${XBPS_REPOSITORY:=-R} -p pkgver ${_linux_series})
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KERNELVERSION=$($XBPS_UHELPER_CMD getpkgversion $KERNELVERSION)
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: ${OUTPUT_FILE="void-live-$(uname -m)-${KERNELVERSION}-$(date +%Y%m%d).iso"}
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#
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# Install required packages to generate the image.
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#
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info_msg "[2/9] Installing software to generate the image: ${REQUIRED_PKGS} ..."
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install_prereqs
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#
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# Install live system and specified packages.
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#
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mkdir -p "$ROOTFS"/etc
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[ -s data/motd ] && cp data/motd $ROOTFS/etc
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[ -s data/issue ] && cp data/issue $ROOTFS/etc
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info_msg "[3/9] Installing void pkgs into the rootfs: ${PACKAGE_LIST} ..."
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install_packages
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export PATH=$VOIDHOSTDIR/usr/bin:$VOIDHOSTDIR/usr/sbin:$PATH
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export LD_LIBRARY_PATH=$VOIDHOSTDIR/usr/lib
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#
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# Generate the initramfs.
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#
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info_msg "[4/9] Generating initramfs image ($INITRAMFS_COMPRESSION)..."
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generate_initramfs
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#
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# Generate the isolinux boot.
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#
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info_msg "[5/9] Generating isolinux support for PC-BIOS systems..."
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generate_isolinux_boot
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#
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# Generate the GRUB EFI boot.
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#
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info_msg "[6/9] Generating GRUB support for EFI systems..."
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generate_grub_efi_boot
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#
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# Generate the squashfs image from rootfs.
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#
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info_msg "[7/9] Generating squashfs image ($SQUASHFS_COMPRESSION) from rootfs..."
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generate_squashfs
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#
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# Generate the ISO image.
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#
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info_msg "[8/9] Generating ISO image..."
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generate_iso_image
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info_msg "[9/9] Removing build directory..."
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rm -rf "$BUILDDIR"
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hsize=$(du -sh "$CURDIR/$OUTPUT_FILE"|awk '{print $1}')
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info_msg "Created $(readlink -f $CURDIR/$OUTPUT_FILE) ($hsize) successfully."
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exit 0
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