mkfs.nilfs2
is used to create a nilfs2 filesystem (usually in a disk partition).
device is the special file corresponding to the device (e.g.
/dev/sdXX). Usually mkfs.nilfs2 is invoked from the
mkfs(8) front-end program.
The exit code returned by
mkfs.nilfs2
is 0 on success and 1 on failure.
OPTIONS
-b block-size
Specify the size of blocks in bytes. The valid block size is 1024,
2048, 4096, 8192 bytes, ..., and the maximum block size is restricted
to the system page size. For most machines, it is 4096 bytes. The
default block size is 4096 bytes.
-B blocks-per-segment
Specify the number of blocks in a segment, where the segment (also
called full segment) is an allocation unit of disk space of NILFS.
This parameter gives the size of segment and consequently determines
how many segments are aligned in the specified device. The default
number of blocks per segment is 2048 (= 8MB with 4KB blocks).
-c
Check the device for bad blocks before building the filesystem.
-L new-volume-label
Set the volume label for the filesystem to
new-volume-label.
The maximum length of the volume label is 16 bytes.
-m reserved-segments-percentage
Specify the percentage of the segments reserved for garbage
collection. The default percentage is 5%.
-n
Cause
mkfs.nilfs2
to not actually create a filesystem, but display
what it would be do if it were to create a filesystem.
-q
Quiet execution. Useful if
mkfs.nilfs2
is run in a script.
-V
Print the version number of
mkfs.nilfs2
and exit.
AUTHOR
This version of
mkfs.nilfs2
has been written by Ryusuke Konishi <ryusuke@osrg.net>.
AVAILABILITY
mkfs.nilfs2
is part of the nilfs-utils package and is available from
http://www.nilfs.org.