swaplabel(8) — Linux manual page


SWAPLABEL(8)                System Administration               SWAPLABEL(8)

NAME         top

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

SYNOPSIS         top

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

DESCRIPTION         top

       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 current 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 changing
       the label or UUID on an actively used swap device.

OPTIONS         top

       -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 characters long.  If label is longer than 16
              characters, swaplabel will truncate it and print a warning

       -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

ENVIRONMENT         top

              enables libblkid debug output.

AUTHORS         top

       swaplabel was written by Jason Borden <jborden@bluehost.com> and
       Karel Zak <kzak@redhat.com>.

SEE ALSO         top

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

AVAILABILITY         top

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

COLOPHON         top

       This page is part of the util-linux (a random collection of Linux
       utilities) project.  Information about the project can be found at 
       ⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩.  If you have a
       bug report for this manual page, send it to
       util-linux@vger.kernel.org.  This page was obtained from the
       project's upstream Git repository
       ⟨git://git.kernel.org/pub/scm/utils/util-linux/util-linux.git⟩ on
       2020-09-18.  (At that time, the date of the most recent commit that
       was found in the repository was 2020-09-15.)  If you discover any
       rendering problems in this HTML version of the page, or you believe
       there is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to

util-linux                       April 2010                     SWAPLABEL(8)