In the book by Kyle Rankin: Knoppix - Pocket Reference on page 38 there is described how I could get my system starting by using the grub-configuration of Suse 10.2 installed earlyer and erroneously overwritten. However, I can not do that while running Knoppix 5.1:

First succesfully
Code:
knoppix@1[knoppix]$ sudo chroot /mnt/hdb3 grub-install /dev/hdb
But then
Code:
knoppix@1[knoppix]$ sudo chroot /mnt/hdb3 grub-install /dev/hdb
/dev/hdb: Not found or not a block device.
knoppix@1[knoppix]$ ls /dev/hdb
/dev/hdb
knoppix@1[knoppix]$
What is wrong

I have beem able to copy the /boot/grub/menu.lst for ex. to a floppy but can not put it into the right place although I try all of the shell command I know