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 either the device name (e.g. /dev/hda1,
/dev/sdb2), or a regular file that shall contain the file system.
blocks is the number of blocks to be used for the file system.
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 directories like perhaps /sbin,
/sbin/fs, /sbin/fs.d, /etc/fs, /etc (the precise list is defined at
compile 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 details.
-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 commands.
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
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 (email@example.com)
Fred N. van Kempen (firstname.lastname@example.org)
Ron Sommeling (email@example.com)
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),
The mkfs command is part of the util-linux-ng package and is available