-#!/bin/sh
+#!/bin/bash
-# Copyright (C) 2007 Google Inc.
+# Copyright (C) 2007, 2008, 2009 Google Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
set -e
-TEMP=`getopt -o i:b:s: -n '$0' -- "$@"`
+. common.sh
-if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
-
-# Note the quotes around `$TEMP': they are essential!
-eval set -- "$TEMP"
-
-while true; do
- case "$1" in
- -i) instance=$2; shift 2;;
-
- -b) blockdev=$2; shift 2;;
+# If the target device is not a real block device we'll first losetup it.
+# This is needed for file disks.
+if [ ! -b $blockdev ]; then
+ ORIGINAL_BLOCKDEV=$blockdev
+ blockdev=$(losetup -sf $blockdev)
+ CLEANUP+=("losetup -d $blockdev")
+fi
- -s) swapdev=$2; shift 2;;
+if [ "$PARTITION_STYLE" = "none" ]; then
+ filesystem_dev=$blockdev
+elif [ "$PARTITION_STYLE" = "msdos" ]; then
+ # Create one big partition, and make it bootable
+ format_disk0 $blockdev
+ filesystem_dev=$(map_disk0 $blockdev)
+ CLEANUP+=("unmap_disk0 $blockdev")
+else
+ echo "Unknown partition style $PARTITION_STYLE"
+ exit 1
+fi
- --) shift; break;;
+mke2fs -Fjq $filesystem_dev
+root_uuid=$($VOL_ID $filesystem_dev )
- *) echo "Internal error!"; exit 1;;
- esac
-done
-if [ -z "$instance" -o -z "$blockdev" -o -z "$swapdev" ]; then
- echo "Missing -i or -b or -s argument!"
- exit 1
+if [ -n "$swapdev" ]; then
+ mkswap $swapdev
+ swap_uuid=$($VOL_ID $swapdev || true )
fi
-swap_uuid=$(mkswap $swapdev | grep 'UUID' | sed -re 's/.*UUID=//')
-mke2fs -Fjq $blockdev
-root_uuid=$(dumpe2fs -h $blockdev | grep '^Filesystem UUID:' \
- | sed -re 's/.*UUID:\s*//')
-
TMPDIR=`mktemp -d` || exit 1
-trap "umount $TMPDIR; rmdir $TMPDIR" EXIT
+CLEANUP+=("rmdir $TMPDIR")
-# If it's not a block device try to mount it via loopback device.
-# This is needed for file disks.
-MOUNT_OPTIONS=""
-if [ ! -b $blockdev ]; then
- MOUNT_OPTIONS="$MOUNT_OPTIONS -o loop"
-fi
-mount $MOUNT_OPTIONS $blockdev $TMPDIR
+mount $filesystem_dev $TMPDIR
+CLEANUP+=("umount $TMPDIR")
( cd $TMPDIR; restore -r -y -f - )
-rm -f $TMPDIR/etc/udev/rules.d/z25_persistent-net.rules
+rm -f $TMPDIR/etc/udev/rules.d/z*_persistent-net.rules
# Fix /etc/fstab with the new volumes' UUIDs
if [ -e $TMPDIR/etc/fstab ]; then
ROOT_LINE="UUID=$root_uuid / ext3 defaults 0 1"
- SWAP_LINE="UUID=$swap_uuid swap swap defaults 0 0"
- cat $TMPDIR/etc/fstab | \
- sed -re "s#^(/dev/sda|UUID=[a-f0-9-]+)\s+/\s+.*\$#$ROOT_LINE#" \
- -re "s#^(/dev/sdb|UUID=[a-f0-9-]+)\s+swap\s+.*\$#$SWAP_LINE#" \
- > $TMPDIR/etc/fstab.new
+ if [ -n "$swapdev" -a -n "$swap_uuid" ]; then
+ SWAP_LINE="UUID=$swap_uuid swap swap defaults 0 0"
+ cat $TMPDIR/etc/fstab | \
+ sed -re "s#^(/dev/sda|UUID=[a-f0-9-]+)\s+/\s+.*\$#$ROOT_LINE#" \
+ -e "s#^(/dev/sdb|UUID=[a-f0-9-]+)\s+swap\s+.*\$#$SWAP_LINE#" \
+ > $TMPDIR/etc/fstab.new
+ else
+ cat $TMPDIR/etc/fstab | \
+ sed -re "s#^(/dev/sda|UUID=[a-f0-9-]+)\s+/\s+.*\$#$ROOT_LINE#" \
+ > $TMPDIR/etc/fstab.new
+ fi
mv $TMPDIR/etc/fstab.new $TMPDIR/etc/fstab
fi
-umount $TMPDIR
-rmdir $TMPDIR
+# execute cleanups
+cleanup
trap - EXIT
+
+exit 0