Linux and Unix mkfs command

Quick links

About mkfs
Syntax
Examples
Related commands
Linux and Unix main page

About mkfs

Build a Linux file system, usually a hard disk partition. The filesys is either the device name (e.g. /dev/hda1, /dev/sdb2) or the mount point (e.g. /, /usr, /home) for the file system. blocks is the number of blocks to be used for the file system.

Syntax

mkfs [ -V ] [ -t fstype ] [ fs-options ] filesys [ blocks ]

-VProduce 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.
-t fstypeSpecifies the type of file system to be built. If not specified, the default file system type (currently ext2) is used.
fs-optionsFile 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.
-cCheck the device for bad blocks before building the file system.
-lRead the bad blocks list from filename
-vProduce verbose output.

Examples

mkfs -t ext2 /dev/fd0

The above example would create an ext2 filesystem on a floppy diskette in the first floppy drive.

Related commands

fdisk
fsck