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MKFS(8)                                                                MKFS(8)



NAME
       mkfs - build a Linux file system

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

DESCRIPTION
       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.

OPTIONS
       -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 use-
              ful for testing.

       -t fstype
              Specifies  the  type  of  file system to be built.  If not specified, the default file system type (cur-
              rently ext2) is used.

       fs-options
              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.

       -l filename
              Read the bad blocks list from filename

       -v     Produce verbose output.

BUGS
       All  generic options must precede and not be combined with file system-specific options.  Some file system-spe-
       cific programs do not support the -v (verbose) option, nor return meaningful exit codes.  Also, some file  sys-
       tem-specific programs do not automatically detect the device size and require the blocks parameter to be speci-
       fied.

AUTHORS
       David Engel (davidATods.com)
       Fred N. van Kempen (waltjeATuwalt.org)
       Ron Sommeling (sommelATsci.nl)
       The manual page was shamelessly adapted from Remy Card's version for the ext2 file system.

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), mkfs.xiafs(8)

AVAILABILITY
       The   mkfs   command   is   part   of   the   util-linux-ng   package  and  is  available  from  ftp://ftp.ker-
       nel.org/pub/linux/utils/util-linux-ng/.



Version 1.9                        Jun 1995                            MKFS(8)