51 lines
1.5 KiB
Bash
Executable File
51 lines
1.5 KiB
Bash
Executable File
#!/bin/bash
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# Test btrfs-image with multiple devices filesystem and verify that restoring
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# the created image works against a single device.
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source "$TEST_TOP/common" || exit
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check_prereq btrfs-image
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check_prereq mkfs.btrfs
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check_prereq btrfs
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setup_root_helper
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setup_loopdevs 3
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prepare_loopdevs
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loop1=${loopdevs[1]}
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loop2=${loopdevs[2]}
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loop3=${loopdevs[3]}
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# Create the test file system.
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run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f "$loop1" "$loop2"
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cond_wait_for_loopdevs
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run_check $SUDO_HELPER mount "$loop1" "$TEST_MNT"
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run_check $SUDO_HELPER dd bs=1M count=1 if=/dev/zero of="$TEST_MNT/foobar"
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orig_md5=$(run_check_stdout stat "$TEST_MNT/foobar" | md5sum | cut -d ' ' -f 1)
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run_check $SUDO_HELPER umount "$TEST_MNT"
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# Create the image to restore later.
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run_check $SUDO_HELPER "$TOP/btrfs-image" "$loop1" "$IMAGE"
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# Wipe out the filesystem from the devices, restore the image on a single
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# device, check everything works and file foobar is there and with 1Mb of
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# zeroes.
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run_check $SUDO_HELPER wipefs -a "$loop1"
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run_check $SUDO_HELPER wipefs -a "$loop2"
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run_check $SUDO_HELPER "$TOP/btrfs-image" -r "$IMAGE" "$loop3"
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# Run check to make sure there is nothing wrong for the recovered image
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run_check $SUDO_HELPER "$TOP/btrfs" check "$loop3"
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cond_wait_for_loopdevs
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run_check $SUDO_HELPER mount "$loop3" "$TEST_MNT"
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new_md5=$(run_check_stdout stat "$TEST_MNT/foobar" | md5sum | cut -d ' ' -f 1)
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run_check $SUDO_HELPER umount "$TEST_MNT"
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cleanup_loopdevs
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# Compare the file digests.
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[ "$orig_md5" == "$new_md5" ] || _fail "File digests do not match"
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