*You* should not need to set the UUID. It should just magically be
there.
$ /sbin/blkid -t TYPE=swap
/dev/sdb1: TYPE="swap" LABEL="swap1" \
UUID="c69f59ff-b928-4232-b44c-8da0f12c52db"
You can cnahe the UUID of any ext partition with
cnahe???
It is Sunday and my first weekend off in a few weeks so my fingers are
on holiday...
tune2fs -U <uuid> /dev/...
But you're *not* supposed to *need* to,
You do need to do so if you install a second/third/fourth...
distribution or version and mkswap changes the UUID of the swap