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#!/bin/sh
# grow a gpt disk, ensure that parted offers to update the gpt size
# Copyright (C) 2009-2012, 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/>.
. "${srcdir=.}/init.sh"; path_prepend_ ../parted
require_512_byte_sector_size_
dev=loop-file
ss=$sector_size_
n_sectors=5000
dd if=/dev/null of=$dev bs=$ss seek=$n_sectors || fail=1
# create gpt label
parted -s $dev mklabel gpt > empty 2>&1 || fail=1
compare /dev/null empty || fail=1
# print the empty table
parted -m -s $dev unit s print > t 2>&1 || fail=1
sed "s,.*/$dev:,$dev:," t > out || fail=1
# check for expected output
printf "BYT;\n$dev:${n_sectors}s:file:$sector_size_:$sector_size_:gpt::;\n" \
> exp || fail=1
compare exp out || fail=1
# grow disk
n_sectors=5500
dd if=/dev/null of=$dev bs=$ss seek=$n_sectors || fail=1
# printing must warn, but not fix in script mode
parted -s $dev print > out 2>&1 || fail=1
# Transform the actual output, to avoid spurious differences when
# $PWD contains a symlink-to-dir. Also, remove the ^M ...^M bogosity.
# normalize the actual output
mv out o2 && sed -e "s,/.*/$dev,DEVICE,;s,
*
,,g;s, $,," \
-e "s,^.*/lt-parted: ,parted: ," o2 > out
# check for expected diagnostic
cat <<EOF > exp || fail=1
Warning: Not all of the space available to DEVICE appears to be used, you can fix the GPT to use all of the space (an extra 500 blocks) or continue with the current setting?
Model: (file)
Disk DEVICE: 2816kB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
EOF
compare exp out || fail=1
# now we fix
printf 'f\n' | parted ---pretend-input-tty $dev print > out 2>&1 || fail=1
# Transform the actual output, to avoid spurious differences when
# $PWD contains a symlink-to-dir. Also, remove the ^M ...^M bogosity.
# normalize the actual output
mv out o2 && sed -e "s,/.*/$dev,DEVICE,;s,
*
,,g;s, $,," \
-e "s,^.*/lt-parted: ,parted: ," o2 > out
# check for expected diagnostic
emit_superuser_warning > exp || fail=1
cat <<EOF >> exp || fail=1
Warning: Not all of the space available to DEVICE appears to be used, you can fix the GPT to use all of the space (an extra 500 blocks) or continue with the current setting?
Fix/Ignore? f
Model: (file)
Disk DEVICE: 2816kB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
EOF
compare exp out || fail=1
# Now should not warn
parted -s $dev print > err 2>&1 || fail=1
grep Warning: err > k ; mv k err
compare /dev/null err || fail=1
Exit $fail
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