I was planning to add an alert box / note that for a default 18.04 install
is not necessary as fstab doesn't contain a UUID for swap. However the old
swap volume UUID was referenced in `/etc/initramfs-tools/conf.d/resume`
needs to be changed. Otherwise I saw this warning during `update-initramfs
W: initramfs-tools configuration sets
W: but no matching swap device is available.
I: The initramfs will attempt to resume from /dev/dm-2
I: Set the RESUME variable to override this.