1FSCK.BTRFS(8) BTRFS FSCK.BTRFS(8)
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6 fsck.btrfs - do nothing, successfully
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9 fsck.btrfs [-aApy] [<device>...]
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12 fsck.btrfs is a type of utility that should exist for any filesystem
13 and is called during system setup when the corresponding /etc/fstab en‐
14 tries contain non-zero value for fs_passno, see fstab(5) for more.
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16 Traditional filesystems need to run their respective fsck utility in
17 case the filesystem was not unmounted cleanly and the log needs to be
18 replayed before mount. This is not needed for BTRFS. You should set
19 fs_passno to 0.
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21 If you wish to check the consistency of a BTRFS filesystem or repair a
22 damaged filesystem, see btrfs-check(8). By default filesystem consis‐
23 tency is checked, the repair mode is enabled via the --repair option
24 (use with care!).
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27 The options are all the same and detect if fsck.btrfs is executed in
28 non-interactive mode and exits with success, otherwise prints a message
29 about btrfs check.
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32 There are two possible exit codes returned:
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34 0 No error
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36 8 Operational error, e.g. device does not exist
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39 /etc/fstab
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42 btrfs(8), fsck(8), fstab(5)
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476.6.2 Nov 24, 2023 FSCK.BTRFS(8)