Quote Originally Posted by gessi2000

I try to edit my menu.lst in the folder '/mnt/hda7/boot/grub' but I think it's O.K.!
Your menu.lst is probably ok. Simply reinstall grub from Knoppix like so:
Code:
mount /dev/hda7 /mnt/hda7
grub-install --no-floppy --root-directory=/mnt/hda7 --recheck /dev/hda