Provided by: xfsprogs_2.7.7-1_i386 bug


       xfs_admin - change parameters of an XFS filesystem


       xfs_admin [ -elu] [ -L label ] [ -U uuid ] device
       xfs_admin -f [ -elu] [ -L label ] [ -U uuid ] filename


       xfs_admin  uses the xfs_db(8) command to modify various parameters of a

       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 xfs_growfs(8) command.


       -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).

       -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 ‘‘--’’ value for 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 nil,
            which will set the filesystem UUID to the null UUID.  The uuid may
            also  be  generate,  which  will  generate  a  new  UUID  for  the

       The mount(8) manual entry describes how to mount a filesystem using its
       label or UUID, rather than its block special device name.


       mkfs.xfs(8), mount(8), xfs_db(8), xfs_growfs(8), xfs(5).