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# Ensure that parted enforces msdos partition limit
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# Copyright (C) 2010-2012 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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. "${srcdir=.}/init.sh"; path_prepend_ ../parted
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require_scsi_debug_module_
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grep '^#define USE_BLKID 1' "$CONFIG_HEADER" > /dev/null ||
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skip_ 'this system lacks a new-enough libblkid'
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partition_sectors=256 # sectors per partition
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n_partitions=61 # how many partitions to create
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start=2048 # start sector for the first partition
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n_sectors=$(($start + n_partitions * partition_sectors))
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sectors_per_MiB=$((1024 * 1024 / ss))
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n_MiB=$(((n_sectors + sectors_per_MiB - 1) / sectors_per_MiB))
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# create memory-backed device
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scsi_debug_setup_ sector_size=$ss dev_size_mb=$n_MiB > dev-name ||
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skip_ 'failed to create scsi_debug device'
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scsi_dev=$(cat dev-name)
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n=$((n_MiB * sectors_per_MiB))
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printf '%s\n' "BYT;" \
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"$scsi_dev:${n}s:scsi:$ss:$ss:msdos:Linux scsi_debug:;" \
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"1:$((start-2))s:$((n-1))s:$((n-start+2))s:::lba;" \
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parted -s $scsi_dev mklabel msdos || fail=1
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parted -s -a min $scsi_dev mkpart extended $((start-2))s 100% || fail=1
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end=$((start + partition_sectors - 2))
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parted -s -a min $scsi_dev mkpart logical ${start}s ${end}s || fail=1
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printf "$((i+4)):${start}s:${end}s:$((end-start+1))s:::;\n" >> exp
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test $i = $((n_partitions - 1)) && break
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start=$((start + partition_sectors))
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parted -m -s $scsi_dev u s p > out || fail=1
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compare exp out || fail=1
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start=$((start + partition_sectors))
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end=$((start + partition_sectors - 2))
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#try one more partition than allowed, make sure it fails
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parted -s -a min $scsi_dev mkpart logical ${start}s ${end}s > out 2>&1
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Error: cannot create any more partitions
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compare exp out || fail=1