After booting knoppix from the cd, how do I change that cd?
My pc only has 1 cd drive, and the knoppix cd needs to be mounted
to run programs from it. The command: "umount /cdrom" logically fails.
But to access files from another cd, I need to remove the knoppix cd,
in such a way that the knoppix system keeps working.
Now what is the secret little trick to temporarily unmount the knoppix cd???

Thanks in advance, because apart from this little problem, knoppix is really neat.