What error message? Or happens nothing?
1 If I boot while starting up : no error message.

2 If I try to boot with qemu : error message : Boot failed: Could not read from CD ROM (code 0003)

Where did you download it from?
I downloaded KNOPPIX from knopper.net

and again:


Did you test the integrity of the download by md5sum?
~$ md5sum -c /media/sr0 KNOPPIX_V7.4.0DVD-2014-08-01-EN.iso

First response: md5sum: /media/sr0: read error

After a while : md5sum: KNOPPIX_V7.4.0DVD-2014-08-01-EN.iso: no properly formatted MD5 checksum lines found.

How did you burn the DVD? Any error message by this action?
I burned it with Free Easy Burner. No error messages. If you know a good (free) burner let me know.

Thank you,


hansieb