mkfs - build a Linux filesystem
] [-t type
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.
), or a regular file that shall contain the
filesystem. The size
argument is the number of blocks to be used for
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 filesystem
builders ( mkfs.fstype
) available under Linux. The
filesystem-specific builder is searched for in a number of directories, like
(the precise list is defined at compile time but at least contains
), and finally in the directories listed in
the PATH environment variable. Please see the filesystem-specific builder
manual pages for further details.
- -t, --type type
- Specify the type of filesystem to be built. If not specified, the
default filesystem type (currently ext2) is used.
- Filesystem-specific options to be passed to the real filesystem builder.
Although not guaranteed, the following options are supported by most
- -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
- -V, --version
- Display version information and exit. (Option -V will display
version information only when it is the only parameter, otherwise it will
work as --verbose.)
- -h, --help
- Display help and exit.
All generic options must precede and not be combined with filesystem-specific
options. Some filesystem-specific programs do not support the -V
(verbose) option, nor return meaningful exit codes. Also, some
filesystem-specific programs do not automatically detect the device size and
require the size
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
The mkfs command is part of the util-linux package and is available from