295 lines
6.7 KiB
Bash
Executable file
295 lines
6.7 KiB
Bash
Executable file
#!/bin/sh
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#
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# Public Domain, 2009-2011 - Juan RP <xtraeme@gmail.com>
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#
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trap "echo; error_out $?" INT QUIT
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info_msg()
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{
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printf "\033[1m$@\n\033[m"
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}
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mount_pseudofs()
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{
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local fs
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if [ -n "$ROOTDIR" ]; then
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mount --bind "$ROOTDIR" "$ROOTFS" || error_out $?
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fi
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for fs in sys proc dev; do
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if [ ! -d "$ROOTFS/$fs" ]; then
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mkdir -p "$ROOTFS/$fs"
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fi
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mount --bind /$fs "$ROOTFS/$fs" || error_out $?
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done
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}
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umount_pseudofs()
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{
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local fs
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for fs in sys proc dev; do
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umount -f "$ROOTFS/$fs" >/dev/null 2>&1
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done
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if [ -n "$1" -a -n "$ROOTDIR" ]; then
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umount -f "$ROOTFS" >/dev/null 2>&1
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fi
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}
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error_out()
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{
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umount_pseudofs
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if [ "$1" -ne 0 ]; then
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echo "ERROR: stage mentioned above returned $1!"
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fi
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info_msg "Cleaning up $BUILDDIR..."
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rm -rf "$BUILDDIR"
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exit 1
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}
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write_etc_motd()
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{
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cat >> "$ROOTFS/etc/motd" <<_EOF
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###############################################################################
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Autogenerated by vmklive @@MKLIVE_VERSION@@.
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-------------------------------------------------------------------------------
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Welcome to the Void GNU/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 play with package management use the xbps-bin(8) and xbps-repo(8)
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utilities. Please visit:
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http://code.google.com/p/xbps/
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for more information and/or documentation about using the X Binary
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Package System. If you think it is useful, please make a donation
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to improve further development from the above URL, thanks.
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###############################################################################
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_EOF
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}
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write_default_isolinux_conf()
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{
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local kver="$1"
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if [ -r "$SPLASH_IMAGE" ]; then
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BACKGROUND="MENU BACKGROUND $(basename $SPLASH_IMAGE)"
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fi
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cat >> "$ISOLINUX_CFG" << _EOF
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DEFAULT vesamenu.c32
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PROMPT 0
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TIMEOUT 100
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ONTIMEOUT linux
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$BACKGROUND
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MENU VSHIFT 5
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MENU ROWS 20
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MENU TABMSGROW 10
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MENU TABMSG Press ENTER to boot or TAB to edit a menu entry
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MENU AUTOBOOT BIOS default device boot in # second{,s}...
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MENU TIMEOUTROW 12
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MENU COLOR title * #FF5255FF *
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MENU COLOR border * #00000000 #00000000 none
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MENU COLOR sel * #ffffffff #FF5255FF *
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LABEL linux
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MENU LABEL Boot Void GNU/Linux ${kver} ($(uname -m))
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KERNEL /casper/vmlinuz
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INITRD /casper/initrd.lz
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APPEND boot=casper keymap=${KEYMAP:-es} locale=${LOCALE:-es_ES} ro
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LABEL linuxtoram
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MENU LABEL Boot Void GNU/Linux ${kver} (toram) ($(uname -m))
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KERNEL /casper/vmlinuz
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INITRD /casper/initrd.lz
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APPEND boot=casper toram keymap=${KEYMAP:-es} locale=${LOCALE:-es_ES} ro
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LABEL c
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MENU LABEL Boot first HD found by the BIOS
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LOCALBOOT 0x80
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_EOF
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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 comptype Compression type for the squashfs image.
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-o outfile Output file name for the ISO image.
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-r rootdir Rootfs directory.
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-s splash Splash image file for isolinux.
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-v volname ISO Volume name.
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-h Shows this message.
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_EOF
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exit 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:o:r:s:v:h" opt; do
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case $opt in
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c) export SQUASHFS_COMPRESSION="$OPTARG";;
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o) export OUTPUT_FILE="$OPTARG";;
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r) export ROOTDIR="$OPTARG";;
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s) export SPLASH_IMAGE="$OPTARG";;
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v) export ISO_VOLUME="$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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if [ "$(id -u)" -ne 0 ]; then
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echo "ERROR: EPERM... got root?"
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exit 1
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fi
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CONFIG_DIR="$HOME/.mklive"
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CONFIG_FILE="$CONFIG_DIR/default.conf"
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if [ -z "$OUTPUT_FILE" ]; then
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OUTPUT_FILE="$HOME/void-live-$(uname -m)-$(date +%Y%m%d).iso"
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fi
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if [ -z "$ISO_VOLUME" ]; then
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ISO_VOLUME="Void GNU/Linux Live $(uname -m)"
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fi
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#
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# The following vars can be overwritten by the config file.
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#
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SYSLINUX_DATADIR="/usr/share/syslinux"
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XBPS_REPO_CMD="xbps-repo"
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XBPS_BIN_CMD="xbps-bin"
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XBPS_UHELPER_CMD="xbps-uhelper"
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if [ ! -r $CONFIG_FILE ]; then
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echo "Cannot find $CONFIG_FILE! exiting..."
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error_out
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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="xbps-casper base-system"
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else
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PACKAGE_LIST="xbps-casper base-system $PACKAGE_LIST"
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fi
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BUILDDIR=$(mktemp --tmpdir="$(pwd)" -d) || exit 1
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BUILDDIR=$(readlink -f $BUILDDIR)
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ROOTFS="$BUILDDIR/casper/rootfs"
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ISOLINUX_DIR="$BUILDDIR/isolinux"
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ISOLINUX_CFG="$ISOLINUX_DIR/isolinux.cfg"
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if [ ! -f $SYSLINUX_DATADIR/isolinux.bin ]; then
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echo "Missing required isolinux files in $SYSLINUX_DATADIR!"
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error_out
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fi
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#
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# Mount pseudofs in the target rootfs.
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#
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mount_pseudofs
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mkdir -p "$ROOTFS/tmp"
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if [ -z "$ROOTDIR" ]; then
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${XBPS_BIN_CMD} -r "$ROOTFS" -y install ${PACKAGE_LIST} || error_out $?
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${XBPS_BIN_CMD} -r "$ROOTFS" -y autoupdate || error_out $?
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${XBPS_BIN_CMD} -r "$ROOTFS" -yp autoremove || error_out $?
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${XBPS_BIN_CMD} -r "$ROOTFS" -yvp purge all || error_out $?
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fi
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${XBPS_BIN_CMD} -r "$ROOTFS" list > \
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"${OUTPUT_FILE%.iso}"-package-list.txt || error_out $?
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#
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# Prepare /etc/motd.
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#
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info_msg "Creating /etc/motd..."
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write_etc_motd
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#
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# We must know the installed kernel package version.
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#
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kver=$(${XBPS_UHELPER_CMD} -r "$ROOTFS" version kernel)
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if [ -z "$kver" ]; then
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echo "Missing 'kernel' package in repository pool!"
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error_out
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fi
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#
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# Rebuild the initramfs image with LZMA compression.
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#
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info_msg "Copying initramfs image..."
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INITRD_IMAGE=$(echo $ROOTFS/boot/initrd.img-*)
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cp -f "$INITRD_IMAGE" "$BUILDDIR/casper/initrd.lz" || error_out $?
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mkdir -p "$ROOTFS"/cow
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#
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# Copy the linux image to the target directory.
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#
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info_msg "Copying kernel image..."
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KERNEL_IMG=$(echo $ROOTFS/boot/vmlinuz-*)
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cp -f "$KERNEL_IMG" "$BUILDDIR/casper/vmlinuz" || error_out $?
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#
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# Remove stuff that uses a lot of space.
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#
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info_msg "Cleaning up rootfs..."
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rm -f "$ROOTFS"/boot/initrd*
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rm -f "$ROOTFS"/boot/vmlinuz*
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#
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# The pseudofs aren't needed anymore in target rootfs.
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#
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umount_pseudofs
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#
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# Copy required isolinux files in the target rootfs.
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#
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mkdir -p "$ISOLINUX_DIR"
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cp -f $SYSLINUX_DATADIR/isolinux.bin "$ISOLINUX_DIR"
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cp -f $SYSLINUX_DATADIR/vesamenu.c32 "$ISOLINUX_DIR"
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write_default_isolinux_conf ${kver}
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if [ -f "$SPLASH_IMAGE" ]; then
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cp -f $SPLASH_IMAGE "$ISOLINUX_DIR"
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fi
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#
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# Prepare the squashed rootfs image.
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#
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info_msg "Building squashed root filesystem..."
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mksquashfs "$ROOTFS" "$BUILDDIR/casper/filesystem.squashfs" \
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-root-becomes / -comp ${SQUASHFS_COMPRESSION:-gzip} && \
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chmod 444 "$BUILDDIR/casper/filesystem.squashfs" || error_out $?
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if [ -n "$ROOTDIR" ]; then
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umount_pseudofs yes
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else
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info_msg "Removing rootfs directory..."
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rm -rf "$ROOTFS" || error_out $?
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fi
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#
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# Prepare the ISO image.
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#
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info_msg "Building ISO image..."
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mkisofs -J -r -V "$ISO_VOLUME" -b isolinux/isolinux.bin \
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-c isolinux/boot.cat -no-emul-boot \
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-boot-load-size 4 -boot-info-table \
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-o "$OUTPUT_FILE" "$BUILDDIR" || error_out $?
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info_msg "Removing build directory..."
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rm -rf "$BUILDDIR" || error_out $?
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info_msg "Created $(readlink -f $OUTPUT_FILE) successfully."
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exit 0
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