GNU/Linux man pages
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Syntaxe et mise en oeuvre :
GNU/Linux |
RedHat 5.2(Apollo) |
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tune2fs(8) |
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tune2fs − adjust tunable filesystem parameters on second extended filesystems
tune2fs [ -l ] [ -c max-mount-counts ] [ -e errors-behavior ] [ -i interval-between-checks ] [ -m reserved-blocks-percentage ] [ -r reserved-blocks-count ] [ -s sparse-super-flag ] [ -u user ] [ -g group ] [ -C mount-count ] [ -L volume-name ] [ -M last-mounted-directory ] [ -U UUID ] device
tune2fs adjusts tunable filesystem parameters on a Linux second extended filesystem.
Never use tune2fs to change parameters of a read/write mounted filesystem!
-c max-mount-counts
adjust the maximal mounts count between two filesystem checks.
-e error-behavior
change the behavior of the kernel code when errors are detected. error-behavior can be one of the following:
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continue |
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Continue normal execution. | |||||
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remount-ro |
Remount the filesystem read-only. | ||||
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panic |
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Cause 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.
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-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.
-s sparse_super_flag
set or reset the sparse_superblock flag. The sparse_superblock feature saves space on really big filesystems. Warning: The Linux 2.0 kernel does not properly support this feature. Neither do all Linux 2.1 kernels; please don’t use this unless you know what you’re doing!
-u user
set the user who can benefit from the reserved blocks. user can be a numerical uid or a user name.
-C mount-count set the number of times the filesystem has been mounted.
-L volume-label
set the volume label of the filesystem. Ext2 filesystem labels can be at most 16 characters long; if volume-label is longer than 16 characters, tune2fs will truncate it and print a warning message.
-M last-mounted-directory
set the last-mounted directory for the filesystem.
-U UUID
set the UUID of the filesystem. A sample UUID looks like this: "c1b9d5a2-f162-11cf-9ece-0020afc76f16". The uuid may also be "null", which will set the filesystem UUID to the null UUID. The uuid may also be "random", which will generate a new random UUID for the filesystem.
We haven’t found any bugs yet. Perhaps there are bugs but it’s unlikely.
Use this utility at your own risk. You’re modifying a filesystem!
tune2fs
was 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>.
tune2fs is part of the e2fsprogs package and is available for anonymous ftp from tsx-11.mit.edu in /pub/linux/packages/ext2fs.
dumpe2fs(8), e2fsck(8), mke2fs(8)
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tune2fs(8) | |