FSCK.F2FS(8)

okay bestie, welcome to the fsck.f2fs(8) manual page — the System Manager's Manual one 💖 it's all about checking a Linux F2FS file system, and yes it's exactly as iconic as it sounds.

✨ NAME ✨

fsck.f2fs — check a Linux F2FS file system. that's the name, no cap 🫶

🎀 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 🦋

okay so fsck.f2fs is the bestie that checks an f2fs file system (usually it's hanging out on a disk partition). the device is the special file corresponding to the device, like /dev/sdXX — literally that.

the exit code returned by fsck.f2fs is 0 on success and -1 on failure. periodt 💅

🌸 OPTIONS 🌸

• -a enable auto fix — turns on auto-fix mode: it runs the file system check only if a bug was reported by the F2FS kernel module. it's disabled by default, bestie 🎀
• -f enable force fix — enables fixing all the inconsistency in the partition. yes, "inconsistency" — keeping the original wording, not me being weird 😭
• -H — specify support write hint. that's the whole vibe ✨
• -M show files map — enables showing all the filenames and inode numbers stored in the image. lowkey useful 👀
• -p enable preen mode — same as "-a" to support general fsck convention.
• -t show stored directory tree — enables showing every directory entries in the partition. every single one, no skipping 💀
• -d debugging-level — specify the level of debugging options. the default number is 0, which shows basic debugging messages.
• -N — answer "No" for all questsions. (their spelling, not mine 😭)
• --nolinear-lookup — tune linear lookup fallback, must specify an argument: 0 enables linear lookup, 1 disables 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, and 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

💖 AUTHOR 💖

initial checking code was written by Byoung Geun Kim <bgbg.kim@samsung.com>. Jaegeuk Kim <jaegeuk@kernel.org> reworked most parts of the codes to support fixing any corrupted images. kings 👑✨

🌈 AVAILABILITY 🌈

fsck.f2fs is available from git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs-tools.git — go get it, bestie 🫶

🧚 SEE ALSO 🧚

• mkfs.f2fs(8)
• dump.f2fs(8)
• defrag.f2fs(8)
• resize.f2fs(8)
• sload.f2fs(8)

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peace out from the FSCK.F2FS(8) footer, bestie — that's the end of the page, signed FSCK.F2FS(8), no extra date shown in the original 💜✨