Initial revision
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:
\ continue\ \ Continue normal execution.
\ remount-ro\ Remount the filesystem read-only.
\ panic\ \ 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.
-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.
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>.