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lvm2/test/shell/lvm-conf-error.sh
Zdenek Kabelac ca54afd701 tests: check we detect lvm.conf read failure
No coredumps with unreadable lvm.conf.
2020-08-28 21:43:02 +02:00

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#!/usr/bin/env bash
# Copyright (C) 2020 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
# Check what happens when reading of lvm.conf fails
. lib/inittest
MKFS=mkfs.ext3
which $MKFS || skip
which filefrag || skip
aux prepare_vg 1
mkdir mnt
lvcreate -L5M -n $lv1 $vg
$MKFS "$DM_DEV_DIR/$vg/$lv1"
mount "$DM_DEV_DIR/$vg/$lv1" mnt
cp etc/lvm.conf mnt
# Figure where the file is placed in filesystem
filefrag -e mnt/lvm.conf | tee frags
umount mnt
# 1st. sector for filesystem
first_extent_sector=$(get first_extent_sector "$dev1")
# find 1st. 1k block of file and trim '..' from printed number
file_block=$(awk '/0:/ { gsub(/\.\.$/, "", $4); print $4}' frags)
# figure sector position on DM device
file_sector=$(( file_block * 2 + first_extent_sector ))
aux error_dev "$dev1" $file_sector:2
mount "$DM_DEV_DIR/$vg/$lv1" mnt
# force lvm to read lvm.conf from mnt path
LVM_SYSTEM_DIR=mnt lvs 2>&1 | tee out || true
# shell give nice error message
grep "Failed to load config file mnt/lvm.conf" out
aux enable_dev "$dev1"
umount mnt
vgremove -ff $vg