Test script to recover damaged primary superblock using backup superblock.
Signed-off-by: Lakshmipathi.G <lakshmipath...@giis.co.in>
---
.../019-fix-superblock-corruption/test.sh | 36 ++++++++++++++++++++++
1 file changed, 36 insertions(+)
create mode 100755 tests/misc-tests/019-fix-superblock-corruption/test.sh
diff --git a/tests/misc-tests/019-fix-superblock-corruption/test.sh
b/tests/misc-tests/019-fix-superblock-corruption/test.sh
new file mode 100755
index 0000000..95815e4
--- /dev/null
+++ b/tests/misc-tests/019-fix-superblock-corruption/test.sh
@@ -0,0 +1,36 @@
+#!/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 512M
+
+FIRST_SUPERBLOCK_OFFSET=65536
+
+test_superblock_restore()
+{
+ run_check $SUDO_HELPER $TOP/mkfs.btrfs -f $TEST_DEV
+
+ # Corrupt superblock checksum
+ dd if=/dev/zero of=$TEST_DEV seek=$FIRST_SUPERBLOCK_OFFSET bs=1 \
+ count=4 conv=notrunc &> /dev/null
+ # Run btrfs check to detect corruption
+ $TOP/btrfs check $TEST_DEV >& /dev/null && \
+ _fail "btrfs check should detect corruption"
+ # Copy backup superblock to primary
+ run_check $TOP/btrfs-select-super -s 1 $TEST_DEV
+
+ echo "Performing btrfs check" &>> $RESULTS
+ $TOP/btrfs check $TEST_DEV &>> $RESULTS
+ if [ $? -ne 0 ]; then
+ _fail "Failed to fix superblock."
+ fi
+}
+
+test_superblock_restore
--
2.7.4
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