MKE2FS
Section: Maintenance Commands (8)
Updated: May 1996
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NAME
mke2fs - create a Linux second extended file system
SYNOPSIS
mke2fs
[
-c
|
-l
filename
]
[
-b
block-size
]
[
-f
fragment-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 system 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
recovery method is desired. It causes mke2fs to reinitialize 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)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- OPTIONS
-
- AUTHOR
-
- BUGS
-
- AVAILABILITY
-
- SEE ALSO
-
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