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#!/bin/sh
# Ensure that creating many partitions works.
# Copyright (C) 2010-2014, 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/>.
. "${srcdir=.}/init.sh"; path_prepend_ ../parted
require_root_
require_scsi_debug_module_
grep '^#define USE_BLKID 1' "$CONFIG_HEADER" > /dev/null ||
skip_ 'this system lacks a new-enough libblkid'
ss=$sector_size_
partition_sectors=1 # sectors per partition
n_partitions=128 # how many partitions to create
start=34 # start sector for the first partition
gpt_slop=34 # sectors at end of disk reserved for GPT
n_sectors=$(($start + n_partitions * partition_sectors + gpt_slop))
sectors_per_MiB=$((1024 * 1024 / ss))
n_MiB=$(((n_sectors + sectors_per_MiB - 1) / sectors_per_MiB))
# create memory-backed device
scsi_debug_setup_ sector_size=$ss dev_size_mb=$n_MiB > dev-name ||
skip_ 'failed to create scsi_debug device'
scsi_dev=$(cat dev-name)
n=$((n_MiB * sectors_per_MiB))
printf "BYT;\n$scsi_dev:${n}s:scsi:$ss:$ss:gpt:Linux scsi_debug:;\n" \
> exp || fail=1
cmd=
i=1
while :; do
s=$((start + i - 1))
e=$((s + partition_sectors - 1))
cmd="$cmd mkpart p$i ${s}s ${e}s"
test $i = $n_partitions && break; i=$((i+1))
done
# Time the actual command:
parted -m -a min -s $scsi_dev mklabel gpt $cmd u s p > out 2>&1 || fail=1
i=1
while :; do
s=$((start + i - 1))
e=$((s + partition_sectors - 1))
printf "$i:${s}s:${e}s:${partition_sectors}s::p$i:;\n" >> exp
test $i = $n_partitions && break; i=$((i+1))
done
compare exp out || fail=1
Exit $fail
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