Linux in a Nutshell, Fourth Edition

Name

tune2fs

Synopsis

                  tune2fs [options] device
               

System administration command. Tune the parameters of a Linux Second Extended Filesystem by adjusting various parameters. You must specify the device on which the filesystem resides; it must not be mounted read/write when you change its parameters.

Options

-c max-mount-counts

Specify the maximum number of mount counts between two checks on the filesystem.

-C mount-count

Specify the mount count. For use with -c to force a check the next time the system boots.

-e behavior

Specify the kernel’s behavior when encountering errors. behavior must be one of:

continue

Continue as usual.

remount-ro

Remount the offending filesystem in read-only mode.

panic

Cause a kernel panic.

-f

Force completion even if there are errors.

-g group

Allow group (a group ID or name) to use reserved blocks.

-i interval[d|w|m]

Specify the maximum interval between filesystem checks. Units may be in days (d), weeks (w), or months (m). If interval is 0, checking will not be time-dependent.

-j

Add an ext3 journal to the filesystem. If specified without -J, use the default journal parameters.

-J jrnl-options

Specify ext3 journal parameters as a comma-separated list of option=value pairs. The specified options override the default values. Only one size or device option can be specified for a filesystem. Possible options are:

device= ext-jrnl

Attach to the journal block device on ext-jrnl, which must exist and must have the same blocksize as the filesystem to be journaled. ...