Whenever I launc YaST software manager it keeps telling me my disk is full.

It's quite right, it's just that the disk in question is a mounted openSUSE
CD iso which is 100% full - as it should be.

Is there any way of stopping YaST doing this - I'd like to be able to tell
YaST which fs to ignore but a even a full stop would be better than a
warning every time.