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#!/bin/sh
# Ensure that the extended partition reports the correct length
# after adding another partition.
# Copyright (C) 2015, 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/>.
. "${srcdir=.}/init.sh"; path_prepend_ ../parted
require_root_
require_scsi_debug_module_
# create memory-backed device
ss=$sector_size_
scsi_debug_setup_ sector_size=$ss dev_size_mb=10 > dev-name ||
skip_ 'failed to create scsi_debug device'
scsi_dev=$(cat dev-name)
# Create a DOS label with an extended partition and a primary partition
parted -s $scsi_dev mklabel msdos || fail=1
parted -s $scsi_dev mkpart extended 1 5 > out 2>&1 || fail=1
parted -s $scsi_dev mkpart primary 5 10 > out 2>&1 || fail=1
wait_for_dev_to_appear_ ${scsi_dev}1 || fail=1
# Make sure the size of the extended partition is correct.
# 2 sectors for 512b and 1 sector for larger. /sys/.../size is in
# 512b blocks so convert accordingly.
dev=${scsi_dev#/dev/}
ext_len=$(cat /sys/block/$dev/${dev}1/size)
if [ $ss -eq 512 ]; then
expected_len=2
else
expected_len=$((ss / 512))
fi
[ $ext_len -eq $expected_len ] || fail=1
Exit $fail
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