NAME
fsck_apfs —
APFS consistency check
SYNOPSIS
fsck_apfs |
[-n | -y]
[-q] [-l]
[-s] [-S]
[-o] device |
DESCRIPTION
The fsck_apfs utility verifies and repairs
APFS containers and volumes.
fsck_apfs checks the specified APFS
containers and volumes and tries to repair all detected inconsistencies.
Because of inconsistencies between the block device and the buffer cache, the raw device should always be used.
In its current state, fsck_apfs checks the integrity of various container data structures.
The options are as follows:
-q- Causes
fsck_apfsto quickly check whether the device is `clean'. If device is an APFS volume,fsck_apfswill quickly check the APFS container and the specified APFS volume. If device is an APFS container,fsck_apfswill quickly check the APFS container and all the APFS volumes in it. By default, no repairs are attempted during a quick check. -n- Never attempt to repair any damage that is found.
-y- Always attempt to repair any damage that is found.
-l- Enable live verification mode. This makes it possible to check an APFS
container which is currently mounted read-write, although no repairs can
be made. Note that live verification mode may cause your system to stop
responding until
fsck_apfscompletes. -s- Print space verification summary.
-S- Skip iteration of snapshots (top-level snapshot structures will still be checked), although no repairs can be made.
-o- Repair overallocations; please do not run an older fsck_apfs on newer systems with this option.
EXIT STATUS
fsck_apfs exits with 0 on success, and
>0 if error occurs.