mke2fs

NAME

       mke2fs - create a Linux second extended file system

SYNOPSIS

       mke2fs  [  -c | -l filename ] [ -b block-size ] [ -f frag-
       ment-size ] [ -i bytes-per-inode ] [  -m  reserved-blocks-
       percentage  ] [ -q ] [ -v ] [ -F ] [ -S ] device [ blocks-
       count ]

DESCRIPTION

       mke2fs is used to create a Linux second extended file sys-
       tem on a device (usually a disk partition).
       device  is  the  special  file corresponding to the device
       (e.g /dev/hdXX).
       blocks-count is the number of blocks on  the  device.   If
       omitted,  mke2fs  automagically  figures  the  file system
       size.

OPTIONS

       -b block-size
              Specify the size of blocks in bytes.

       -c     Check the device for bad blocks before creating the
              file system, using a fast read-only test.

       -f fragment-size
              Specify the size of fragments in bytes.

       -i bytes-per-inode
              Specify  the  bytes/inode ratio.  mke2fs creates an
              inode for every bytes-per-inode bytes of  space  on
              the  disk.   This  value  defaults  to  4096 bytes.
              bytes-per-inode must be at least 1024.

       -l filename
              Read the bad blocks list from filename

       -m reserved-blocks-percentage
              Specify the percentage of reserved blocks  for  the
              super-user.  This value defaults to 5%.

       -q     Quiet  execution.   Useful  if  mke2fs  is run in a
              script.

       -v     Verbose execution.

       -F     Force mke2fs to run, even if the  specified  device
              is not a block special device.

       -S     Write  superblock and group descriptors only.  This
              is useful if  all  of  the  superblock  and  backup
              superblocks  are corrupted, and a last-ditch recov-
              ery method is desired.  It causes mke2fs to  reini-
              tialize the superblock and group descriptors, while
              not touching the inode  table  and  the  block  and
              inode  bitmaps.   The  e2fsck program should be run
              immediately after this option is used, and there is
              no guarantee that any data will be salvageable.

AUTHOR

       This  version  of mke2fs has been written by Theodore Ts'o
       <tytso@mit.edu>.

BUGS

       mke2fs accepts the -f  option  but  currently  ignores  it
       because  the  second extended file system does not support
       fragments yet.
       There may be some other ones.  Please, report them to  the
       author.

AVAILABILITY

       mke2fs  is available for anonymous ftp from ftp.ibp.fr and
       tsx-11.mit.edu in /pub/linux/packages/ext2fs.

SEE ALSO

       dumpe2fs(8), e2fsck(8), tune2fs(8)