You got an ATA(or SATA) onboard RAID controller.
Here is a howto.
http://rcswww.urz.tu-dresden.de/~hol...aid_howto.html

Since fdisk -l does not output anything in knoppix, the booted environment does not

reckonize the hard-drive.

Perhaps some boot options will help knoppix reckon you hdd

(http://www.google.nl/search?hl=nl&q=...G=Zoeken&meta=) , otherwise you

might want to try installing from a 'normal' installer like slack, debian or suse.
When using Debian be sure to boot the bf24 kernel at install time.

Once you have booted one of the install disks (http://www.linuxiso.org/), check out fdisk -l

again to see if the disk get reckonised.
If it does, follow the install instructions.

Otherwise, feel free to post more questions.

Cheers

<edit>
Feel free to post questions anyhow. [esc][:wq]