fsck.zfs —
dummy ZFS filesystem checker
fsck.zfs |
[ options ]
dataset… |
fsck.zfs is a thin shell wrapper that at most
checks the status of a dataset's container pool. It is installed by OpenZFS
because some Linux distributions expect a fsck helper for all filesystems.
If more than one
dataset is specified, each is
checked in turn and the results binary-ored.
Ignored.
ZFS datasets are checked by running
zpool
scrub on the containing pool. An individual
ZFS dataset is never checked independently of its pool, which is unlike a
regular filesystem.
However, the
fsck(8) interface still allows it to
communicate some errors: if the
dataset is in
a degraded pool, then
fsck.zfs will return
exit code
4 to indicate an uncorrected filesystem
error.
Similarly, if the
dataset is in a faulted pool
and has a legacy
/etc/fstab record, then
fsck.zfs will return exit code
8 to indicate a fatal operational error.
fstab(5),
fsck(8),
zpool-scrub(8)