mirror of
https://github.com/kdave/btrfs-progs
synced 2025-05-07 10:27:54 +00:00
57909d702c
Signed-off-by: Lakshmipathi.G <Lakshmipathi.G@giis.co.in> Signed-off-by: David Sterba <dsterba@suse.com>
35 lines
786 B
Bash
Executable File
35 lines
786 B
Bash
Executable File
#!/bin/bash
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#
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# Corrupt primary superblock and restore it using backup superblock.
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source "$TOP/tests/common"
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check_prereq btrfs-select-super
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check_prereq btrfs
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setup_root_helper
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prepare_test_dev
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FIRST_SUPERBLOCK_OFFSET=65536
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test_superblock_restore()
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{
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run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f "$TEST_DEV"
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# Corrupt superblock checksum
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run_check $SUDO_HELPER dd if=/dev/zero of="$TEST_DEV" \
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seek="$FIRST_SUPERBLOCK_OFFSET" bs=1 count=4 conv=notrunc
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# Run btrfs check to detect corruption
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run_mayfail "$TOP/btrfs" check "$TEST_DEV" && \
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_fail "btrfs check should detect corruption"
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# Copy backup superblock to primary
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run_check "$TOP/btrfs-select-super" -s 1 "$TEST_DEV"
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# Perform btrfs check
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run_check "$TOP/btrfs" check "$TEST_DEV"
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}
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test_superblock_restore
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