I've been looking around and seen two different things ways to declare swap in fstab.
I've seen something like the line below:
UUID=UUID-HERE none swap sw 0 0
UUID=UUID-HERE none swap swap 0 0`
What, if anything, is the difference?
When the filesystem type is
swap, neither of these options mean anything. In fact, the only option that makes sense is
pri=n, specifying the swap space priority. Usually you don't need it and can just specify
UUID=foo none swap defaults
(The mount point, as well as dump and pass fields, are irrelevant too.)