tune2fs
Hurricane Electric Internet Services
NAME
tune2fs - adjust tunable filesystem parameters on second
extended filesystems
SYNOPSIS
tune2fs [ -l ] [ -c max-mount-counts ] [ -e errors-behav-
ior ] [ -i interval-between-checks ] [ -m reserved-blocks-
percentage ] [ -r reserved-blocks-count ] [ -u user ] [ -g
group ] device
DESCRIPTION
tune2fs adjusts tunable filesystem parameters on a Linux
second extended filesystem.
Never use tune2fs on a read/write mounted filesystem to
change parameters!
OPTIONS
-c max-mount-counts
adjust the maximal mounts count between two
filesystem checks.
-e errors-behavior
change the behavior of the kernel code when errors
are detected. errors-behavior can be one of the
followings:
continue Continue normal execution.
remount-ro Remount the filesystem read-
only.
panic Causes a kernel panic.
-g group
set the user group which can benefit from the
reserved blocks.
group can be a numerical gid or a group name.
-i interval-between-checks[d|m|w]
adjust the maximal time between two filesystem
checks. No postfix or `d' result in days, `m' in
months, and `w' in weeks. A value of zero will
disable the timedependent checking.
-l list the contents of the filesystem superblock.
-m reserved-blocks-percentage
adjust the reserved blocks percentage on the given
device.
-r reserved-blocks-count
adjust the reserved blocks count on the given
device.
-u user
set the user who can benefit from the reserved
blocks. user can be a numerical uid or a user
name.
BUGS
We didn't find any bugs yet. Perhaps there are bugs but
it's unlikely.
WARNING
Use this utility on your own risk. You're modifying
filesystems.
AUTHOR
tune2fs has been written by Remy Card <card@masi.ibp.fr>,
the developer and maintainer of the ext2 fs.
tune2fs uses the ext2fs library written by Theodore Ts'o
<tytso@mit.edu>.
This manual page was written by Christian Kuhtz <chk@data-
hh.Hanse.DE>.
Timedependent checking was added by Uwe Ohse
<uwe@tirka.gun.de>.
AVAILABILITY
tune2fs 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), mke2fs(8)
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Copyright (C) 1998
Hurricane Electric.
All Rights Reserved.