mirror of
https://github.com/kdave/btrfs-progs
synced 2025-02-18 02:36:56 +00:00
3de68a0e87
As misc-tests/021 image dump is restored on the same original loop device, this overlaps with the stale data and makes the test pass falsely. Fix this by using a new device for restore. And also, the btrfs-image dump and restore doesn't restore the file data, so any read on the files should be avoided. So instead of file data use file stat data for the checksum. Reported-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
49 lines
1.5 KiB
Bash
Executable File
49 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 "$TEST_TOP/common"
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check_prereq btrfs-image
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check_prereq mkfs.btrfs
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check_prereq btrfs
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setup_root_helper
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setup_loopdevs 3
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prepare_loopdevs
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loop1=${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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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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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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