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 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
-h, --help
Display help text and exit.
-V, --version
Print version 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
LIBBLKID_DEBUG=all
enables libblkid debug output.
AUTHORS
swaplabel was written by Jason Borden <jborden@bluehost.com> and Karel
Zak <kzak@redhat.com>.
SEE ALSO
uuidgen(1), mkswap(8), swapon(8)
REPORTING BUGS
For bug reports, use the issue tracker at
https://github.com/util-linux/util-linux/issues.
AVAILABILITY
The swaplabel command is part of the util-linux package which can be
downloaded from Linux Kernel Archive
<https://www.kernel.org/pub/linux/utils/util-linux/>.
util-linux 2.38.1 2022-05-11 SWAPLABEL(8)
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