my brother is having problems with his dual boot system,
i tried to use knoppix to reinstall grub to the MBR
knoppix wouldn't let me because i wasn't root (don't know root password).
i was using knoppix 3.9
what is it's root password? can someone explain how to reinstall grub (with pre existing files)

i am not a noob...
but i still suck at this...
i think i know how to install grub...
but i'm not sure...