TUNE2FS

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

NAME

tune2fs - adjust tunable filesystem parameters on second extended filesystems  

SYNOPSIS

tune2fs [ -l ] [ -c max-mount-counts ] [ -e errors-behavior ] [ -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)


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
BUGS
WARNING
AUTHOR
AVAILABILITY
SEE ALSO

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