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 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).

ENVIRONMENT         top

       LIBBLKID_DEBUG=all
              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
       2020-12-18.  (At that time, the date of the most recent commit
       that was found in the repository was 2020-12-17.)  If you
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       manual page), send a mail to man-pages@man7.org

util-linux                     April 2010                   SWAPLABEL(8)

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