# phpman > man > fsck.btrfs(8)

[FSCK.BTRFS(8)](https://www.chedong.com/phpMan.php/man/FSCK.BTRFS/8/markdown)                               Btrfs Manual                               [FSCK.BTRFS(8)](https://www.chedong.com/phpMan.php/man/FSCK.BTRFS/8/markdown)



## NAME
       fsck.btrfs - do nothing, successfully

## SYNOPSIS
       **fsck.btrfs** [-aApy] [_<device>_...]

## DESCRIPTION
       **fsck.btrfs** is a type of utility that should exist for any filesystem and is called during
       system setup when the corresponding **/etc/fstab** entries contain non-zero value for **fs**___**passno**,
       see [**fstab**(5)](https://www.chedong.com/phpMan.php/man/fstab/5/markdown) for more.

       Traditional filesystems need to run their respective fsck utility in case the filesystem was
       not unmounted cleanly and the log needs to be replayed before mount. This is not needed for
       BTRFS. You should set fs_passno to 0.

       If you wish to check the consistency of a BTRFS filesystem or repair a damaged filesystem,
       see [**btrfs-check**(8)](https://www.chedong.com/phpMan.php/man/btrfs-check/8/markdown). By default filesystem consistency is checked, the repair mode is enabled
       via the _--repair_ option (use with care!).

## OPTIONS
       The options are all the same and detect if **fsck.btrfs** is executed in non-interactive mode and
       exits with success, otherwise prints a message about btrfs check.

## EXIT STATUS
       There are two possible exit codes returned:

       0
           No error

       8
           Operational error, eg. device does not exist

## FILES
### /etc/fstab

## SEE ALSO
       [**btrfs**(8)](https://www.chedong.com/phpMan.php/man/btrfs/8/markdown), [**fsck**(8)](https://www.chedong.com/phpMan.php/man/fsck/8/markdown), [**fstab**(5)](https://www.chedong.com/phpMan.php/man/fstab/5/markdown)



Btrfs v5.16.2                                02/16/2022                                [FSCK.BTRFS(8)](https://www.chedong.com/phpMan.php/man/FSCK.BTRFS/8/markdown)