Quote Originally Posted by wolfgang-s
I had the same problem... try "knoppix nodma" at boot - that worked for me....
nodma was a useful cheat code around version 3.7 or 3.8 wnen Klaus made dma the default option. But it caused so many problems that he made nodma the default again in the 4.x versions. I have not seen mention that this changed again, so I think niodma is still the default and the cheat code will do nothing. One can always try it though. And some systems do indeed need dma to read the optical drive properly, so knoppix dma is worth trying.