blob: ccd633e5282ff05dfce9f8527ee47b7270dc32a3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
#!/bin/sh
# This is just for the record.
# This test is not run.
# Copyright (C) 2005 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 2 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
# Test for the 2005-10-13 patch to lib/mkdir-p.c that fixed this sort
# of bug in mkdir:
#
# "mkdir -p /a/b/c" no longer fails merely because a leading prefix
# directory (e.g., /a or /a/b) exists on a read-only file system.
#
# Demonstrate the problem, as root:
mount='sudo mount'
cd /tmp \
&& dd if=/dev/zero of=1 bs=8192 count=50 \
&& dd if=/dev/zero of=2 bs=8192 count=50 \
&& mkdir -p mnt-ro && mkfs -t ext2 1 && mkfs -t ext2 2 \
&& $mount -o loop=/dev/loop3 1 mnt-ro \
&& mkdir -p mnt-ro/rw \
&& $mount -o remount,ro mnt-ro \
&& $mount -o loop=/dev/loop4 2 mnt-ro/rw
mkdir -p mnt-ro/rw/sub || fail=1
# To clean up
umount /tmp/2
umount /tmp/1
rm -rf /tmp/[12]
|
