mkfs - build a Linux file system
mkfs [ -V ] [ -t fstype ] [ fs-options ] filesys [ blocks ]
mkfs is used to build a Linux file system on a device, usually a hard disk partition. filesys is
the device name (e.g. /dev/hda1, /dev/sdb2). blocks is the number of blocks to be used for the
The exit code returned by mkfs is 0 on success and 1 on failure.
In actuality, mkfs is simply a front-end for the various file system builders (mkfs.fstype)
available under Linux. The file system-specific builder is searched for in a number of directo-
ries like perhaps /sbin, /sbin/fs, /sbin/fs.d, /etc/fs, /etc (the precise list is defined at com-
pile time but at least contains /sbin and /sbin/fs), and finally in the directories listed in the
PATH environment variable. Please see the file system-specific builder manual pages for further
-V Produce verbose output, including all file system-specific commands that are executed.
Specifying this option more than once inhibits execution of any file system-specific com-
mands. This is really only useful for testing.
Specifies the type of file system to be built. If not specified, the default file system
type (currently ext2) is used.
File system-specific options to be passed to the real file system builder. Although not
guaranteed, the following options are supported by most file system builders.
-c Check the device for bad blocks before building the file system.
Read the bad blocks list from filename
-v Produce verbose output.
All generic options must precede and not be combined with file system-specific options. Some
file system-specific programs do not support the -v (verbose) option, nor return meaningful exit
codes. Also, some file system-specific programs do not automatically detect the device size and
require the blocks parameter to be specified.
David Engel (firstname.lastname@example.org)
Fred N. van Kempen (email@example.com)
Ron Sommeling (firstname.lastname@example.org)
The manual page was shamelessly adapted from Remy Card's version for the ext2 file system.
fs(5), badblocks(8), fsck(8), mkdosfs(8), mke2fs(8), mkfs.bfs(8), mkfs.ext2(8), mkfs.ext3(8),
mkfs.minix(8), mkfs.msdos(8), mkfs.vfat(8), mkfs.xfs(8), mkfs.xiafs(8)