[CentOS] Cannot open: No space left on device

On Sep 11, 2015, at 3:32 PM, Warren Young <wyml at etr-usa.com> wrote:
> 
> I mean run the “mount” command.  Its output is what the program “says.”
> 
> But never mind now, since you found the actual problem.

Ah, bogus command anyway.  I thought swap space showed up in the mount table, but it doesn’t.  swapon -s is a better command for showing what I wanted to know.