mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-21 13:34:40 +03:00
79 lines
1.9 KiB
Bash
79 lines
1.9 KiB
Bash
#!/usr/bin/env bash
|
|
|
|
# Copyright (C) 2008-2013,2018 Red Hat, Inc. All rights reserved.
|
|
#
|
|
# This copyrighted material is made available to anyone wishing to use,
|
|
# modify, copy, or redistribute it subject to the terms and conditions
|
|
# of the GNU General Public License v.2.
|
|
#
|
|
# 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
|
|
|
|
SKIP_WITH_LVMPOLLD=1
|
|
|
|
. lib/inittest
|
|
|
|
xxd -v || skip
|
|
|
|
aux prepare_devs 3
|
|
get_devs
|
|
|
|
#
|
|
# Test corrupted mda_header.version field, which also
|
|
# causes the mda_header checksum to be bad.
|
|
#
|
|
# FIXME: if a VG has only a single PV, this repair
|
|
# doesn't work since there's no good PV to get
|
|
# metadata from. A more advanced repair capability
|
|
# is needed.
|
|
#
|
|
|
|
dd if=/dev/zero of="$dev1" bs=1M count=1 oflag=direct
|
|
dd if=/dev/zero of="$dev2" bs=1M count=1 oflag=direct
|
|
dd if=/dev/zero of="$dev3" bs=1M count=1 oflag=direct
|
|
|
|
vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3"
|
|
|
|
pvs
|
|
|
|
# read mda_header which is 4k from start of disk
|
|
dd if="$dev1" of=meta1 bs=4k count=1 skip=1
|
|
|
|
# convert binary to text
|
|
xxd meta1 > meta1.txt
|
|
|
|
# Corrupt mda_header by changing the version field from 0100 to 0200
|
|
sed 's/0000010:\ 304e\ 2a3e\ 0100\ 0000\ 0010\ 0000\ 0000\ 0000/0000010:\ 304e\ 2a3e\ 0200\ 0000\ 0010\ 0000\ 0000\ 0000/' meta1.txt > meta1-bad.txt
|
|
|
|
# convert text to binary
|
|
xxd -r meta1-bad.txt > meta1-bad
|
|
|
|
# write bad mda_header back to disk
|
|
dd if=meta1-bad of="$dev1" bs=4k seek=1
|
|
|
|
# pvs reports bad metadata header
|
|
pvs 2>&1 | tee out
|
|
grep "bad metadata header" out
|
|
|
|
pvs "$dev1"
|
|
pvs "$dev2"
|
|
pvs "$dev3"
|
|
|
|
# bad metadata in one mda doesn't prevent using
|
|
# the VG since other mdas are fine and usable
|
|
lvcreate -l1 $vg
|
|
|
|
|
|
vgck --updatemetadata $vg
|
|
|
|
pvs 2>&1 | tee out
|
|
not grep "bad metadata header" out
|
|
|
|
pvs "$dev1"
|
|
pvs "$dev2"
|
|
pvs "$dev3"
|
|
|
|
vgchange -an $vg
|
|
vgremove -ff $vg
|