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#!/bin/sh
# device-mapper: preserve uuid
# The dm's partitions uuid would be removed when creating new partitions
# Copyright (C) 2012, 2014, 2019-2023 Free Software Foundation, 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 3 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, see <http://www.gnu.org/licenses/>.
. "${srcdir=.}/init.sh"; path_prepend_ ../parted
require_root_
require_udevadm_settle_
test "x$ENABLE_DEVICE_MAPPER" = xyes \
|| skip_ "no device-mapper support"
ss=$sector_size_
ns=300
n_partitions=3
start_sector=34
loop_file=loop-file-$$
dm_name=dm-test-$$
cleanup_() {
dmsetup remove $dm_name
test -n "$dev" && losetup -d "$dev"
rm -f $loop_file;
}
# create a file large enough to hold a GPT partition table
dev=$(loop_setup_ $loop_file) || framework_failure
dmsetup create $dm_name --table "0 $ns linear $dev 0" || framework_failure
dmsetup rename $dm_name --setuuid f139317b-f98a-45d7-ab3b-9b4e0a336872 || framework_failure
cmd=
for ((i=1; i<=$n_partitions; i+=1)); do
s=$((start_sector + i - 1))
cmd="$cmd mkpart p$i ${s}s ${s}s"
done
parted -m -a min -s /dev/mapper/$dm_name mklabel gpt $cmd > /dev/null 2>&1 || fail=1
wait_for_dev_to_appear_ /dev/mapper/${dm_name}p${n_partitions} || fail=1
# Make sure all the partitions have UUIDs
for ((i=1; i<=$n_partitions; i+=1)); do
dmsetup info /dev/mapper/${dm_name}p$i | grep UUID || fail=1
# remove the partitions as we go, otherwise cleanup won't work.
dmsetup remove /dev/mapper/${dm_name}p$i
done
Exit $fail
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