forked from Mirrors/btrfs-progs
50 lines
1.3 KiB
Bash
50 lines
1.3 KiB
Bash
#!/bin/bash
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# test btrfs-image with a missing device (uses loop devices)
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#
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# - btrfs-image must not loop indefinetelly
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# - btrfs-image will expectedly fail to produce the dump
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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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test_image_dump()
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{
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run_check $SUDO_HELPER "$TOP/btrfs" check "$dev1"
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# the output file will be deleted
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run_mayfail $SUDO_HELPER "$TOP/btrfs-image" "$dev1" /tmp/test-img.dump
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}
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test_run()
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{
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run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f -d raid1 -m raid1 "$dev1" "$dev2"
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# we need extents to trigger reading from all devices
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run_check $SUDO_HELPER mount "$dev1" "$TEST_MNT"
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run_check $SUDO_HELPER dd if=/dev/zero of="$TEST_MNT/a" bs=1M count=10
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run_check $SUDO_HELPER dd if=/dev/zero of="$TEST_MNT/b" bs=4k count=1000 conv=sync
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run_check $SUDO_HELPER umount "$TEST_MNT"
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test_image_dump
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run_check $SUDO_HELPER "$TOP/btrfs" filesystem show "$dev1"
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# create a degraded raid1 filesystem, check must succeed
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# btrfs-image must not loop
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run_mayfail wipefs -a "$dev2"
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run_check $SUDO_HELPER losetup -d "$dev2"
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unset loopdevs[2]
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run_check $SUDO_HELPER "$TOP/btrfs" filesystem show "$dev1"
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test_image_dump
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}
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setup_loopdevs 2
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prepare_loopdevs
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dev1=${loopdevs[1]}
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dev2=${loopdevs[2]}
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test_run
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cleanup_loopdevs
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