Thanks for your reply!

I'm not interested in using a harddrive for swapfile, since (to me) the beauty of knoppix is that a system with no mechanical parts can be left on indefinitely without worry of the harddrive eventually crashing.

Besides, I have a plenty of RAM, but not enough for the TOHD cheatcode. So my goal is to figure out how to cache (into ram) the more commonly needed files (anything konqueror would need), in order to cut down on the CDROM access.

Ideas anyone?