467 lines
14 KiB
Bash
467 lines
14 KiB
Bash
#!/bin/bash
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#-
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# Copyright (c) 2009-2013 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 $?" INT TERM HUP ERR
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info_msg() {
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printf "\033[1m$@\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 $BUILDDIR, exiting."
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umount_kernel_fs
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[ -d "$BUILDDIR" ] && rm -rf "$BUILDDIR"
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exit 1
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}
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umount_kernel_fs() {
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for f in sys/fs/cgroup/systemd sys/fs/cgroup dev/shm dev/pts dev proc sys run; do
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umount -f $ROOTFS/kernel_temp/$f &>/dev/null
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done
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}
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write_etc_motd() {
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cat >> "$ROOTFS/etc/motd" <<_EOF
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###############################################################################
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Autogenerated by void-mklive "@@MKLIVE_VERSION@@"
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-------------------------------------------------------------------------------
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Welcome to the Void Linux Live system, you have been autologged in.
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This user has full sudo(8) permissions without any password, be careful
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executing commands through sudo(8).
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To start the installation please type:
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$ sudo void-installer
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and follow the on-screen instructions. Thanks for trying Void Linux.
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###############################################################################
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_EOF
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}
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write_conf_file() {
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cat > "$1" <<_EOF
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# *-*- sh -*-*
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# Default configuration file for vmklive-@VERSION@.
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#
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# List of packages to be installed into the live image.
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# By default the 'base-system-live' pkg is always installed because
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# it is required to generate a working image.
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#PACKAGE_LIST="foo blah"
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# Syslinux splash image.
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SPLASH_IMAGE=/usr/share/void-artwork/splash.png
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# Default keymap to use.
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KEYMAP=us
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# Default locale to use.
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LOCALE=en_US.UTF-8
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# Path to XBPS utilities.
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#XBPS_INSTALL_CMD=xbps-install
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#XBPS_QUERY_CMD=xbps-query
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#XBPS_RECONFIGURE_CMD=xbps-reconfigure
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#XBPS_REMOVE_CMD=xbps-remove
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#XBPS_RINDEX_CMD=xbps-rindex
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#XBPS_UHELPER_CMD=xbps-uhelper
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# XBPS cache directory to install packages from.
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#REPOSITORY_CACHE=/blah/foo
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_EOF
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chmod 644 "$1"
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}
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usage()
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{
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cat <<_EOF
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Usage: $(basename $0) [options]
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Options:
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-C file Path to configuration file (defaults to ~/.mklive.conf)
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-c (gzip|bzip2|xz) Compression type for the squashfs/initramfs image.
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-l "pkgname ..." Generate a local repository in the image with these packages.
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Packages must be delimited by blanks.
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-r rootdir Use this directory to generate the image (if unset,
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current working directory will be used).
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-o outfile Output file name for the ISO image.
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-s splash Splash image file for isolinux.
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_EOF
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exit 1
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}
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install_packages() {
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for f in ${PACKAGE_LIST}; do
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info_msg " $f"
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done
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# Check that all pkgs are reachable.
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${XBPS_INSTALL_CMD} ${XBPS_ARGS} -n ${PACKAGE_LIST} >>$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} ${XBPS_ARGS} ${PACKAGE_LIST} >>$LOGFILE 2>&1
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${XBPS_INSTALL_CMD} ${XBPS_ARGS} -u >>$LOGFILE 2>&1
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${XBPS_REMOVE_CMD} ${XBPS_ARGS} -o >>$LOGFILE 2>&1
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${XBPS_QUERY_CMD} -r "$ROOTFS" -l > "${OUTPUT_FILE%.iso}"-package-list.txt
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# Reconfigure all pkgs again via linux-user-chroot.
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chroot $ROOTFS /usr/sbin/xbps-reconfigure -fa >>$LOGFILE 2>&1
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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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$XBPS_INSTALL_CMD -r $ROOTFS/kernel_temp -y \
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base-system void-mklive >>$LOGFILE 2>&1
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# Install some required utilities from util-linux.
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install -Dm755 $ROOTFS/kernel_temp/usr/bin/mount "$ROOTFS/usr/bin/mount"
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install -Dm755 $ROOTFS/kernel_temp/usr/sbin/agetty "$ROOTFS/usr/sbin/agetty"
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install -Dm755 $ROOTFS/kernel_temp/usr/bin/lsblk "$ROOTFS/usr/bin/lsblk"
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# Install stdbuf from coreutils, required by void-installer.
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install -Dm755 $ROOTFS/kernel_temp/usr/bin/stdbuf "$ROOTFS/usr/bin/stdbuf"
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install -Dm755 $ROOTFS/kernel_temp/usr/libexec/coreutils/libstdbuf.so \
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"$ROOTFS/usr/libexec/coreutils/libstdbuf.so"
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chroot $ROOTFS/kernel_temp /usr/bin/dracut --no-hostonly \
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--add " dmsquash-live vmklive " --${COMPRESSTYPE} \
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"/boot/initrd.lz" >>$LOGFILE 2>&1
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umount_kernel_fs
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mv $ROOTFS/kernel_temp/boot/initrd.lz $BOOT_DIR
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# We rely on pam now, so let's install the host login config.
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install -Dm644 $ROOTFS/kernel_temp/etc/pam.d/login \
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"$ROOTFS/etc/pam.d/login"
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# Remove pam_motd.so; busybox login already prints it.
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sed -e '/^.*pam_motd.so*/d' -i "$ROOTFS/etc/pam.d/login"
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}
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copy_kernel_and_modules() {
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cp -a $ROOTFS/kernel_temp/boot/vmlinuz-${KERNELVERSION} \
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$BOOT_DIR/vmlinuz
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mkdir -p $ROOTFS/lib/modules
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cp -a $ROOTFS/kernel_temp/lib/modules/${KERNELVERSION} \
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$ROOTFS/lib/modules
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# remove temporary rootfs.
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rm -rf $ROOTFS/kernel_temp
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}
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generate_local_repository() {
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mkdir -p $ROOTFS/packages
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pkgs=$($XBPS_INSTALL_CMD -r /tmp/blah -n ${LOCALREPO_PKGLIST})
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set -- ${pkgs}
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while [ $# -ne 0 ]; do
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pkg=$1; action=$2; arch=$3; repo=$4;
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shift 4
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bpkg=${repo}/${pkg}.${arch}.xbps
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cp -f $bpkg $ROOTFS/packages
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done
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LD_LIBRARY_PATH="$ROOTFS/usr/lib" \
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$ROOTFS/usr/sbin/$XBPS_RINDEX_CMD -a $ROOTFS/packages/*.xbps 2>&1 >>$LOGFILE
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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 $MKLIVE_DATADIR/isolinux.cfg.in \
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"$ISOLINUX_DIR"/isolinux.cfg
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if [ -f "$SPLASH_IMAGE" ]; then
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cp -f $SPLASH_IMAGE "$ISOLINUX_DIR"
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fi
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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}|" $ISOLINUX_DIR/isolinux.cfg
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}
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generate_grub_efi_boot() {
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cp -f $MKLIVE_DATADIR/grub.cfg $GRUB_DIR
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cp -f $MKLIVE_DATADIR/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|@@LOCALE@@|${LOCALE}|" $GRUB_DIR/grub_void.cfg
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mkdir -p $GRUB_DIR/fonts $GRUB_DIR/locale
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cp -f $GRUB_DATADIR/unicode.pf2 $GRUB_DIR/fonts
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cp -f /boot/grub/locale/* $GRUB_DIR/locale
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# Create EFI vfat image.
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dd if=/dev/zero of=$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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mkdir -p "${GRUB_EFI_TMPDIR}/EFI/boot/"
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cd "$BUILDDIR"
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grub-mkstandalone --directory="/usr/lib/grub/x86_64-efi" \
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--format="x86_64-efi" \
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--compression="xz" --output="${GRUB_EFI_TMPDIR}/EFI/boot/bootx64.efi" \
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"boot/grub/grub.cfg" >>$LOGFILE 2>&1
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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 -sk "$ROOTFS"|awk '{print $1}')
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mkdir -p "$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_SIZE/6)))K" 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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cd $BUILDDIR
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cp -a rootfs/* tmp-rootfs/
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umount -f "$BUILDDIR/tmp-rootfs"
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mkdir -p "$BUILDDIR/LiveOS"
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mksquashfs "$BUILDDIR/tmp" "$BUILDDIR/LiveOS/squashfs.img" \
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-comp ${COMPRESSTYPE} >>$LOGFILE 2>&1
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chmod 444 "$BUILDDIR/LiveOS/squashfs.img"
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# Remove rootfs and temporary dirs, we don't need them anymore.
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rm -rf "$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 --efi-boot boot/grub/efiboot.img -no-emul-boot \
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-isohybrid-mbr $SYSLINUX_DATADIR/isohdpfx.bin \
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-output "$OUTPUT_FILE" "$BUILDDIR" >>$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 "C:c:l:o:r:s:h" opt; do
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case $opt in
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C) CONFIG_FILE="$OPTARG";;
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c) COMPRESSTYPE="$OPTARG";;
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l) LOCALREPO_PKGLIST="$OPTARG";;
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o) OUTPUT_FILE="$OPTARG";;
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r) ROOTDIR="$OPTARG";;
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s) SPLASH_IMAGE="$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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if [ -z "$CONFIG_FILE" ]; then
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CONFIG_FILE="$HOME/.mklive.conf"
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fi
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LOGFILE="$(mktemp -t vmklive-XXXXXXXXXX.log)"
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if [ -z "$SYSLINUX_DATADIR" ]; then
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SYSLINUX_DATADIR=/usr/share/syslinux
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fi
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if [ -z "$GRUB_DATADIR" ]; then
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GRUB_DATADIR=/usr/share/grub
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fi
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if [ -z "$MKLIVE_DATADIR" ]; then
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MKLIVE_DATADIR=/usr/share/void-mklive
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fi
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if [ -z "$SPLASH_IMAGE" ]; then
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SPLASH_IMAGE=/usr/share/void-artwork/splash.png
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fi
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if [ -z "$XBPS_INSTALL_CMD" ]; then
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XBPS_INSTALL_CMD=xbps-install
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fi
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if [ -z "$XBPS_REMOVE_CMD" ]; then
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XBPS_REMOVE_CMD=xbps-remove
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fi
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if [ -z "$XBPS_QUERY_CMD" ]; then
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XBPS_QUERY_CMD=xbps-query
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fi
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if [ -z "$XBPS_RINDEX_CMD" ]; then
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XBPS_RINDEX_CMD=xbps-rindex
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fi
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if [ -z "$XBPS_UHELPER_CMD" ]; then
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XBPS_UHELPER_CMD=xbps-uhelper
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fi
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if [ -z "$XBPS_RECONFIGURE_CMD" ]; then
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XBPS_RECONFIGURE_CMD=xbps-reconfigure
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fi
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if [ -z "$COMPRESSTYPE" ]; then
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COMPRESSTYPE=xz
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fi
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# Create or read configuration file.
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if [ ! -r $CONFIG_FILE ]; then
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info_msg "Creating config file at $CONFIG_FILE."
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write_conf_file $CONFIG_FILE
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fi
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. $CONFIG_FILE
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if [ -z "$PACKAGE_LIST" ]; then
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PACKAGE_LIST="base-system-live"
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else
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PACKAGE_LIST="base-system-live $PACKAGE_LIST"
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fi
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if [ ! -f $SYSLINUX_DATADIR/isolinux.bin ]; then
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echo "Missing required isolinux files in $SYSLINUX_DATADIR, exiting..."
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exit 1
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fi
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# Check for root permissions.
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if [ "$(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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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 $BUILDDIR)
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ROOTFS="$BUILDDIR/rootfs"
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BOOT_DIR="$BUILDDIR/boot"
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ISOLINUX_DIR="$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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mkdir -p $ISOLINUX_DIR $GRUB_DIR
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#
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# Check there are repos registered before anything.
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#
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${XBPS_QUERY_CMD} -L >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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echo "No repositories available, exiting..."
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error_out
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fi
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XBPS_ARGS="-r $ROOTFS -y"
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if [ -n "$REPOSITORY_CACHE" ]; then
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XBPS_ARGS="$XBPS_ARGS -c $REPOSITORY_CACHE"
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fi
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XBPS_VERSION=$($XBPS_QUERY_CMD -V|awk '{print $2}')
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case $XBPS_VERSION in
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# XBPS >= 0.21
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[0-9].[2-9][1-9]*) ;;
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*) echo "Your xbps utilities are too old ($XBPS_VERSION), 0.21 is required."; exit 1;;
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esac
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KERNELVERSION=$($XBPS_QUERY_CMD -R --property version kernel)
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if [ -z "$OUTPUT_FILE" ]; then
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OUTPUT_FILE="$HOME/void-live-$(uname -m)-${KERNELVERSION}-$(date +%Y%m%d).iso"
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fi
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info_msg "Redirecting stdout/stderr to $LOGFILE ..."
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#
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# Install live system and specified packages.
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#
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info_msg "[1/9] Installing packages into the rootfs..."
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install_packages
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#
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# Prepare /etc/motd.
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#
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mkdir -p "$ROOTFS"/etc
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write_etc_motd
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#
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# Generate the initramfs.
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#
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info_msg "[2/9] Generating initramfs image ($COMPRESSTYPE)..."
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generate_initramfs
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#
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# Copy linux kernel and modules to rootfs.
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#
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info_msg "[3/9] Copying kernel image/modules from temporary rootfs..."
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copy_kernel_and_modules
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#
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# Generate the package local repository for void-installer.
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#
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if [ -z "$LOCALREPO_PKGLIST" ]; then
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_skip="(disabled)"
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fi
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info_msg "[4/9] Generating package local repository ${_skip}..."
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if [ -n "$LOCALREPO_PKGLIST" ]; then
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generate_local_repository
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fi
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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 ($COMPRESSTYPE) from rootfs..."
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generate_squashfs
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#
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# Generate the ISO image.
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#
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info_msg "[8/9] Generating ISO image..."
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generate_iso_image
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info_msg "[9/9] Removing build directory..."
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rm -rf "$BUILDDIR"
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hsize=$(du -sh "$OUTPUT_FILE"|awk '{print $1}')
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info_msg "Created $(readlink -f $OUTPUT_FILE) ($hsize) successfully."
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exit 0
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# vim: set ts=4 sw=4 et:
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