Quote Originally Posted by proguard
the problem is happening when i am trying to boot from CD i am getting the message as mentioned above what do i do
Are you on a network? Should your computer be getting a DHCP setting from another system (although Knoppix should certainly boot even if it can't)? You might try typing knoppix nodhcp at the boot prompt, although if you need to connect to a network through your ethernet port later then you will likely have to run netcardconfig (through the menu or from a shell prompt).

I would avoid using forms of the word install when talking about running from the Live CD, it is only going to confuse things.