NAME
xfs_admin - change parameters of an XFS filesystem
SYNOPSIS
xfs_admin [ -elu] [ -L label ] [ -U uuid ] device
xfs_admin -f [ -elu] [ -L label ] [ -U uuid ] filename
DESCRIPTION
xfs_admin
uses the
R xfs_db (8)
command to modify various parameters of a filesystem.
Devices that are mounted cannot be modified.
Administrators must unmount filesystems before
xfs_admin
or
xfs_db
can convert parameters.
A number of parameters of a mounted filesystem can be examined
and modified using the
R xfs_growfs (8)
command.
OPTIONS
-e
Enables unwritten extent support on a filesystem that does not
already have this enabled.
-f
Specifies that the filesystem image to be processed is stored in a
regular file (see the mkfs.xfs -d file option).
-j
Enables version 2 log format (journal format supporting larger
log buffers).
-l
Print the current filesystem label.
-u
Print the current filesystem UUID (Universally Unique IDentifier).
-L label
Set the filesystem label.
XFS filesystem labels can be at most 12 characters long; if
label
is longer than 12 characters,
xfs_admin
will truncate it and print a warning message.
The filesystem label can be cleared using the special ``\c
R -- ''
value for
R label .
-U UUID
Set the UUID of the filesystem.
A sample UUID looks like this: "c1b9d5a2-f162-11cf-9ece-0020afc76f16".
The uuid may also be
R nil ,
which will set the filesystem UUID to the null UUID.
The uuid may also be
R generate ,
which will generate a new UUID for the filesystem.
The
R mount (8)
manual entry describes how to mount a filesystem using its label or UUID,
rather than its block special device name.
SEE ALSO
mkfs.xfs(8),
mount(8),
xfs_db(8),
xfs_growfs(8),
xfs(5).
ČLÁNKY DO MAILU