swaplabel - print or change the label or UUID of a swap area
To print the swaplabel
$ sudo swaplabel /dev/vda5
To change the swaplabel, first make swapoff
$ sudo swapoff -a
then,
change the swaplabel name
$ sudo swaplabel -L mynewswap /dev/vda5
then,
$ sudo swapon -a
check withÂ
$ sudo swapon --show
now new swaplabel is fixed
$ sudo swaplabel /dev/vda5