mirror of https://github.com/vitalif/e2fsprogs
160 lines
3.3 KiB
Groff
160 lines
3.3 KiB
Groff
.\" -*- nroff -*-
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.\" Copyright 1993, 1994, 1995 by Theodore Ts'o. All Rights Reserved.
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.\" This file may be copied under the terms of the GNU Public License.
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.\"
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.TH MKE2FS 8 "@E2FSPROGS_MONTH@ @E2FSPROGS_YEAR@" "E2fsprogs version @E2FSPROGS_VERSION@"
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.SH NAME
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mke2fs \- create a Linux second extended file system
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.SH SYNOPSIS
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.B mke2fs
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[
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.B \-c
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.\" .B \-t
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.\" test
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.\" |
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.B \-l
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.I filename
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]
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[
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.B \-b
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.I block-size
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]
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[
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.B \-f
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.I fragment-size
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]
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[
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.B \-i
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.I bytes-per-inode
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]
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[
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.B \-m
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.I reserved-blocks-percentage
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]
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[
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.B \-o
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.I creator-os
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]
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[
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.B \-q
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]
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[
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.B \-v
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]
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[
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.B \-F
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]
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[
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.B \-L
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.I volume-label
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]
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[
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.B \-M
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.I last-mounted-directory
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]
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[
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.B \-S
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]
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.I device
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[
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.I blocks-count
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]
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.SH DESCRIPTION
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.B mke2fs
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is used to create a Linux second extended file system on a device (usually
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a disk partition).
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.br
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.I device
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is the special file corresponding to the device (e.g /dev/hdXX).
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.br
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.I blocks-count
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is the number of blocks on the device. If omitted,
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.B mke2fs
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automagically figures the file system size.
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.SH OPTIONS
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.TP
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.I -b block-size
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Specify the size of blocks in bytes.
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.TP
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.I -c
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Check the device for bad blocks before creating the file system, using a
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fast read-only test.
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.TP
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.I -f fragment-size
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Specify the size of fragments in bytes.
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.TP
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.I -i bytes-per-inode
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Specify the bytes/inode ratio.
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.B mke2fs
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creates an inode for every
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.I bytes-per-inode
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bytes of space on the disk. This value defaults to 4096 bytes.
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.I bytes-per-inode
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must be at least 1024.
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.TP
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.I -l filename
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Read the bad blocks list from
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.I filename
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\.
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.TP
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.I -m reserved-blocks-percentage
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Specify the percentage of reserved blocks for the super-user. This value
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defaults to 5%.
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.\" .TP
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.\" .I -t test
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.\" Check the device for bad blocks before creating the file system
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.\" using the specified test.
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.TP
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.I -o
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Manually override the default value of the "creator os" field of the
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filesystem. Normally the creator field is set by default to the native OS
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of the mke2fs executable.
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.TP
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.I -q
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Quiet execution. Useful if mke2fs is run in a script.
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.TP
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.I -v
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Verbose execution.
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.TP
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.I -F
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Force mke2fs to run, even if the specified device is not a
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block special device.
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.TP
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.I -L
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Set the volume label for the filesystem.
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.TP
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.I -M
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Set the last mounted directory for the filesystem. This might be useful
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for the sake of utilities that key off of the last mounted directory to
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determine where the filesytem should be mounted.
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.TP
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.I -S
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Write superblock and group descriptors only. This is useful if all of
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the superblock and backup superblocks are corrupted, and a last-ditch
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recovery method is desired. It causes mke2fs to reinitialize the
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superblock and group descriptors, while not touching the inode table
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and the block and inode bitmaps. The
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.B e2fsck
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program should be run immediately after this option is used, and there
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is no guarantee that any data will be salvageable.
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.SH AUTHOR
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This version of
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.B mke2fs
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has been written by Theodore Ts'o <tytso@mit.edu>.
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.SH BUGS
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.B mke2fs
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accepts the -f option but currently ignores it because the second
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extended file system does not support fragments yet.
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.br
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There may be some other ones. Please, report them to the author.
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.SH AVAILABILITY
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.B mke2fs
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is available for anonymous ftp from ftp.ibp.fr and tsx-11.mit.edu in
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/pub/linux/packages/ext2fs.
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.SH SEE ALSO
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.BT badblocks (8),
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.BR dumpe2fs (8),
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.BR e2fsck (8),
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.BR tune2fs (8)
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