mkfs - build a Linux filesystem
Contents
Availability
The mkfs command is part of the util-linux package which can be downloaded from Linux Kernel Archive
<https://www.kernel.org/pub/linux/utils/util-linux/>.
util-linux 2.41 2025-02-26 MKFS(8)
Bugs
All generic options must precede and not be combined with filesystem-specific options. Some
filesystem-specific programs do not automatically detect the device size and require the size parameter
to be specified.
Description
Thismkfsfrontendisdeprecatedinfavouroffilesystemspecificmkfs.<type>utils.mkfs is used to build a Linux filesystem on a device, usually a hard disk partition. The device argument
is either the device name (e.g., /dev/hda1, /dev/sdb2), or a regular file that shall contain the
filesystem. The size argument is the number of blocks to be used for the filesystem.
The exit status returned by mkfs is 0 on success and 1 on failure.
In actuality, mkfs is simply a front-end for the various filesystem builders (mkfs.fstype) available
under Linux. The filesystem-specific builder is searched for via your PATH environment setting only.
Please see the filesystem-specific builder manual pages for further details.
Name
mkfs - build a Linux filesystem
Options
-t, --typetype
Specify the type of filesystem to be built. If not specified, the default filesystem type (currently
ext2) is used.
fs-options
Filesystem-specific options to be passed to the real filesystem builder.
-V, --verbose
Produce verbose output, including all filesystem-specific commands that are executed. Specifying this
option more than once inhibits execution of any filesystem-specific commands. This is really only
useful for testing.
-h, --help
Display help text and exit.
-V, --version
Display version and exit. (Option -V will display version information only when it is the only
parameter, otherwise it will work as --verbose.)
Reporting Bugs
For bug reports, use the issue tracker <https://github.com/util-linux/util-linux/issues>.
See Also
fs(5), badblocks(8), fsck(8), mkdosfs(8), mke2fs(8), mkfs.bfs(8), mkfs.ext2(8), mkfs.ext3(8), mkfs.ext4(8), mkfs.minix(8), mkfs.msdos(8), mkfs.vfat(8), mkfs.xfs(8)
Synopsis
mkfs [options] [-ttype] [fs-options] device [size]
