MKE2FS

Section: Maintenance Commands (8)
Updated: May 1996
Index Return to Main Contents
 

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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