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206541974a
Typos found with codespell. Signed-off-by: Samanta Navarro <ferivoz@riseup.net> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
70 lines
2.0 KiB
Groff
70 lines
2.0 KiB
Groff
.TH E2SCRUB 8 "@E2FSPROGS_MONTH@ @E2FSPROGS_YEAR@" "E2fsprogs version @E2FSPROGS_VERSION@"
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.SH NAME
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e2scrub - check the contents of a mounted ext[234] file system
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.SH SYNOPSIS
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.B
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e2scrub [OPTION] MOUNTPOINT | DEVICE
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.SH DESCRIPTION
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.B e2scrub
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attempts to check (but not repair) all metadata in a mounted ext[234]
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file system if the file system resides on an LVM logical volume.
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The block device of the LVM logical volume can also be passed in.
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This program snapshots the volume and runs a file system check on the snapshot
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to look for corruption errors.
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The LVM volume group must have at least 256MiB of unallocated space to
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dedicate to the snapshot or the logical volume will be skipped.
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The snapshot will be named
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.IR lvname ".e2scrub"
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and
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.B udev
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will not create symbolic links to it under
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.IR /dev/disk .
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Every attempt will be made to remove the snapshots prior to running
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.BR e2scrub ,
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but in a dire situation it may be necessary to remove the snapshot manually.
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If no errors are found,
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.B fstrim
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can be called on the file system if it is mounted.
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If errors are found, the file system will be marked as having errors.
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The file system should be taken offline and
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.B e2fsck
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run as soon as possible, because
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.B e2scrub
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does not fix corruptions.
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If the file system is not repaired,
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.B e2fsck
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will be run before the next mount.
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.SH OPTIONS
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.TP
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\fB-n\fR
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Print what commands
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.B e2scrub
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would execute to check the file system. (Note: the commands will not
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actually be executed; however, since
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.B e2scrub
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needs to run some commands to query the system to determine what
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commands would be executed, it still needs to be run as root.)
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.TP
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\fB-r\fR
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Remove the e2scrub snapshot and exit without checking anything.
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.TP
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\fB-t\fR
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Run
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.B
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fstrim(1)
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on the mounted file system if no errors are found.
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.TP
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\fB-V\fR
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Print version information and exit.
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.SH EXIT CODE
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The exit codes are the same as in
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.BR e2fsck (8)
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.SH SEE ALSO
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.BR e2fsck (8)
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.SH AUTHOR
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Darrick J. Wong <darrick.wong@oracle.com>
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.SH COPYRIGHT
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Copyright \[co]2018 Oracle. License is GPLv2+. <http://www.gnu.org/licenses/gpl-2.0.html>
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