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#!/bin/bash
# Stolen from ganeti-instance-debootstrap-0.7
# 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
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
set -e
. common.sh
CLEANUP=( )
trap cleanup EXIT
# 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 $blockdev")
fi
if [ "$PARTITION_STYLE" = "none" ]; then
filesystem_dev=$blockdev
elif [ "$PARTITION_STYLE" = "msdos" ]; then
filesystem_dev=$(map_disk0 $blockdev)
CLEANUP+=("unmap_disk0 $blockdev")
else
echo "Unknown partition style $PARTITION_STYLE"
exit 1
fi
vol_type=$($VOL_ID -t $filesystem_dev)
if [ "$vol_type" = "ext3" -o "$vol_type" = "ext2" ]; then
$DUMP -0 -q -f - "$filesystem_dev"
fi
# execute cleanups
cleanup
trap - EXIT
exit 0