You'll want to setup grub in the MBR of the first hard drive for it to boot, so use "setup (hd0)" instead. If boot/grub/stage1 is on /dev/hdb1 (which is hd1,0 in Grub's terms), then yes, "root (hd1,0)" is the right command. I have /dev/hda5 setup as a dedicated /boot partition, so I use "root...