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 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  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).

AUTHOR

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

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)





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