Quote Originally Posted by Roper
I was also looking for a clean, sure way to remove grub, and am sorry to see no solution was offered.

I have tried several times to install Knoppix on a hard drive that had another Linux distro previously installed on it, and grub is never overwritten by the new by “knoppix-installer”. This wouldn't be too bad if the original grub installation was usable for booting Knoppix, but no chance – grub persistent, prevents Knoppix from booting, but doesn't function as a boot loader.

So, I'd like to ask the question again, somewhat modified, though: can anyone explain how to use Knoppix from a live CD to delete a grub installation from a hard derive?

Thanks.
Did a google 'grub' then 'uninstall' & got this:

12. How to uninstall GRUB from my hard disk drive?
There is no concept uninstall in boot loaders, because if you uninstall a boot loader, an unbootable machine would simply remain. So all you need to do is overwrite another boot loader you like to your disk, that is, install the boot loader without uninstalling GRUB.
For example, if you want to install the boot loader for Windows, just run FDISK /MBR on Windows. If you want to install LILO (I can't imagine why you want to do such a thing, though), run /sbin/lilo on GNU/Linux.

from http://www.gnu.org/software/grub/grub-faq.en.html#q12

So, running from the CD, you *should* be able to
1) copy /etc/lilo.conf to /home/knoppix so it will be editable
2) edit so that it will install to the HD MBR & shows the partitions & O/S's you want
3) run sudo lilo -c /home/knoppix/lilo.conf

You will of coarse have to mount the HD read/write. There is some howto info on this somewhere in the docs but I can't find it right now. An alternate (since it sounds like you have Knoppix on the HD but can't get into it) would be to boot into it which you should be able to do by booting with 'knoppix root=/dev/hdaX noinitrd ro ' (this from a post here somewhere) and then run lilo from there.

PS: You're famous. You're post is #5 on the google search list.