Provided by: xfsprogs_2.9.4-2_i386 bug


       xfs_admin - change parameters of an XFS filesystem


       xfs_admin [ -eflu ] [ -L label ] [ -U uuid ] device


       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(8)  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 at device (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

       -L label
              Set the filesystem label to 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 to uuid.  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 filesystem.

       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).