2 # improved MSDOS partition-table recognition
4 # Copyright (C) 2008-2012 Free Software Foundation, Inc.
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
19 . "${srcdir=.}/init.sh"; path_prepend_ ../parted
21 ######################################################################
22 # With vestiges of a preceding FAT file system boot sector in the MBR,
23 # parted 1.8.8.1.29 and earlier would fail to recognize a DOS
25 ######################################################################
30 # create a file to simulate the underlying device
31 dd if=/dev/null of=$dev bs=$ss seek=$N 2> /dev/null || fail=1
34 parted -s $dev mklabel msdos > out 2>&1 || fail=1
35 compare /dev/null out || fail=1 # expect no output
37 # create two partitions
38 parted -s $dev mkpart primary 2048s 4095s \
39 mkpart primary 4096s 8191s > out 2>&1 || fail=1
40 compare /dev/null out || fail=1 # expect no output
42 # write "FAT" where it would cause trouble
43 printf FAT | dd bs=1c seek=82 count=3 of=$dev conv=notrunc || fail=1
45 # print the partition table
46 parted -m -s $dev unit s p > out || fail=1
47 tail -2 out > k && mv k out || fail=1
48 printf "1:2048s:4095s:2048s:::;\n2:4096s:8191s:4096s:::;\n" > exp || fail=1
50 compare exp out || fail=1