forked from Mirrors/btrfs-progs
btrfs-progs: misc-tests: Superblock corruption and recovery using backup
Signed-off-by: Lakshmipathi.G <Lakshmipathi.G@giis.co.in> Signed-off-by: David Sterba <dsterba@suse.com>master
parent
89093e6fd1
commit
57909d702c
|
@ -0,0 +1,34 @@
|
||||||
|
#!/bin/bash
|
||||||
|
#
|
||||||
|
# Corrupt primary superblock and restore it using backup superblock.
|
||||||
|
|
||||||
|
source "$TOP/tests/common"
|
||||||
|
|
||||||
|
check_prereq btrfs-select-super
|
||||||
|
check_prereq btrfs
|
||||||
|
|
||||||
|
setup_root_helper
|
||||||
|
prepare_test_dev
|
||||||
|
|
||||||
|
FIRST_SUPERBLOCK_OFFSET=65536
|
||||||
|
|
||||||
|
test_superblock_restore()
|
||||||
|
{
|
||||||
|
run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f "$TEST_DEV"
|
||||||
|
|
||||||
|
# Corrupt superblock checksum
|
||||||
|
run_check $SUDO_HELPER dd if=/dev/zero of="$TEST_DEV" \
|
||||||
|
seek="$FIRST_SUPERBLOCK_OFFSET" bs=1 count=4 conv=notrunc
|
||||||
|
|
||||||
|
# Run btrfs check to detect corruption
|
||||||
|
run_mayfail "$TOP/btrfs" check "$TEST_DEV" && \
|
||||||
|
_fail "btrfs check should detect corruption"
|
||||||
|
|
||||||
|
# Copy backup superblock to primary
|
||||||
|
run_check "$TOP/btrfs-select-super" -s 1 "$TEST_DEV"
|
||||||
|
|
||||||
|
# Perform btrfs check
|
||||||
|
run_check "$TOP/btrfs" check "$TEST_DEV"
|
||||||
|
}
|
||||||
|
|
||||||
|
test_superblock_restore
|
Loading…
Reference in New Issue