3 # Copyright (C) 2007, 2008, 2009 Google Inc.
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 2 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful, but
11 # WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write to the Free Software
17 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
28 # If the target device is not a real block device we'll first losetup it.
29 # This is needed for file disks.
30 if [ ! -b $blockdev ]; then
31 ORIGINAL_BLOCKDEV=$blockdev
32 blockdev=$(losetup -sf $blockdev)
33 CLEANUP+=("losetup -d $blockdev")
36 if [ "$PARTITION_STYLE" = "none" ]; then
37 filesystem_dev=$blockdev
38 elif [ "$PARTITION_STYLE" = "msdos" ]; then
39 filesystem_dev=$(map_disk0 $blockdev)
40 CLEANUP+=("unmap_disk0 $blockdev")
42 echo "Unknown partition style $PARTITION_STYLE"
46 vol_type=$($VOL_ID -t $filesystem_dev)
48 if [ "$vol_type" = "ext3" -o "$vol_type" = "ext2" ]; then
49 dump -0 -q -f - "$filesystem_dev"