Quote Originally Posted by devils_casper
GRUB is already installed in HD2. doesn't GRUB appear on booting up from it?

you have to mount Ubuntu partitions first. execute 'chroot' command on mounted partition and reinstall grub after that.
Of course it is installed od HD3 ((hd2) from GRUB's point of view), I'm talking rubbish. Sorry, got myself completely mixed up in my posts
And thanks for the mount tip. As I said, I'm new to Linux and didn't realize I have to mount the partition first.
Will definitely try this out!

Thanks for all the help.