Mount and Unmount

[Mario Vukelic]

On Thu, 2007-08-30 at 22:07 +0200, Nils Kassube wrote:
> Right - and the command needs to know which device you want to
> enable / disable. 

But usually then don't need to be specified on the command line. The
manpage you quoted says:

Normally, the first form is used [swapon -a]

-a: All  devices  marked  as  ‘‘swap’’  swap  devices  in /etc/fstab are
made available, except for those with the ‘‘noauto’’ option.  Devices
that are already running as swap are silently skipped.