fsck.f2fs(8)

NAME

fsck.f2fs - check a Linux F2FS file system

SYNOPSIS

fsck.f2fs [ -a enable auto fix ] [ -f enable force fix ] [ -H ] [ -M show file map ] [ -p enable preen mode ] [ -t show stored directory tree ] [ -d debugging-level ] device

DESCRIPTION

fsck.f2fs is used to check an f2fs file system (usually in a disk partition). device is the special file corresponding to the device (e.g. /dev/sdXX).

The exit code returned by fsck.f2fs is 0 on success and -1 on failure.

OPTIONS

-a enable auto fix: Enable to run file system check only if a bug was reported by the F2FS kernel module. It is disabled by default.

-f enable force fix: Enable to fix all the inconsistency in the partition.

-H: Specify support write hint.

-M show files map: Enable to show all the filenames and inode numbers stored in the image

-p enable preen mode: Same as "-a" to support general fsck convention.

-t show stored directory tree: Enable to show every directory entries in the partition.

-d debug-level: Specify the level of debugging options. The default number is 0, which shows basic debugging messages.

-N: Answer "No" for all questsions.

--nolinear-lookup: Tune linear lookup fallback, must specify an argument, 0: enable linear lookup, 1: disable linear lookup. For android case, it will disable linear lookup by default.

--fault_injection=%d enable fault injection: Enable fault injection in all supported types with specified injection rate.

--fault_type=%d configure fault injection type: Support configuring fault injection type, should be enabled with fault_injection option, fault type value is shown below, it supports single or combined type.
=========================== ===========
Type_Name Type_Value
=========================== ===========
FAULT_SEG_TYPE 0x00000001
FAULT_SUM_TYPE 0x00000002
FAULT_SUM_ENT 0x00000004
FAULT_NAT 0x00000008
FAULT_NODE 0x00000010
FAULT_XATTR_ENT 0x00000020
FAULT_COMPR 0x00000040
FAULT_INODE 0x00000080
FAULT_DENTRY 0x00000100
FAULT_DATA 0x00000200
FAULT_QUOTA 0x00000400

Initial checking code was written by Byoung Geun Kim <[email protected]>.

AUTHOR

Jaegeuk Kim <[email protected]> reworked most parts of the codes to support fixing any corrupted images.

AVAILABILITY

fsck.f2fs is available from git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs-tools.git.