Now back to the topic: I have changed the linuxrc as Fabianx suggested: http://www.mathematik.unni-bielefeld...um0312/linuxrc
The file has been put back on the CD as he described.

BUT Knoppix boots as always, without loading the CD to the RAM (I have 1GB, Knoppix's limit is at 900MB).

Please take a look at the file and tell me what is wrong about it.