7

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

and

UUID=UUID-HERE none swap swap 0 0`

What, if anything, is the difference?

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11

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 defaults:

UUID=foo   none   swap   defaults

(The mount point, as well as dump and pass fields, are irrelevant too.)

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  • 2
    Thanks, I figured mount dump and pass were irrelevant. I hadn't seen it as defaults before, but I have since I was searching after asking the question.
    – Rob
    Sep 19, 2011 at 18:16

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