swaplabel <root
SWAPLABEL(8)                          System Administration                          SWAPLABEL(8)

NAME
       swaplabel - print or change the label or UUID of a swap area

SYNOPSIS
       swaplabel [-L label] [-U UUID] device

DESCRIPTION
       swaplabel  will  display or change the label or UUID of a swap partition located on device
       (or regular file).

       If the optional arguments -L and -U are not given, swaplabel will simply display the  cur‐
       rent swap-area label and UUID of device.

       If  an  optional  argument is present, then swaplabel will change the appropriate value on
       device.  These values can also be set during swap creation using mkswap(8).  The swaplabel
       utility allows to change the label or UUID on an actively used swap device.

OPTIONS
       -h, --help
              Display help text and exit.

       -L, --label label
              Specify  a new label for the device.  Swap partition labels can be at most 16 char‐
              acters long.  If label is longer than 16 characters, swaplabel will truncate it and
              print a warning message.

       -U, --uuid UUID
              Specify  a  new  UUID for the device.  The  UUID must be in the standard 8-4-4-4-12
              character format, such as is output by uuidgen(1).

AUTHOR
       swaplabel was written by Jason Borden    and  Karel  Zak  .

ENVIRONMENT
       LIBBLKID_DEBUG=all
              enables libblkid debug output.

AVAILABILITY
       The   swaplabel  command  is  part  of  the  util-linux  package  and  is  available  from
       ftp://ftp.kernel.org/pub/linux/utils/util-linux/.

SEE ALSO
       mkswap(8), swapon(8), uuidgen(1)

util-linux                                  April 2010                               SWAPLABEL(8)

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