f2label

Change the label on an existing F2FS filesystem (like e2label, but for F2FS).

Uses the ioctls described in this Phoronix article (manpage).

Both the source code and a statically-linked Linux x86-64 binary are provided.

Dependencies

• Linux v.5.4 or newer
• the f2fs kernel module
• make
• a C compiler

Building

• make

Usage

./f2label <filepath> <new label>

The F2FS filesystem must be mounted before running the utility.

Note that, unlike in e2label, <filepath> points to a file/directory, and not the block device.

<filepath> can point to either the mount point, or to a file on the filesystem -- either will work.

Be sure to run partprobe on the underlying block device afterward so that the kernel picks up the new label:

sudo partprobe /dev/sdX