@koan

Add bootdevice=dh4 to your mos 2.0 startup line.
Code:

bootdevice option overrides the boot priorities. It's useful when you're booting multiple versions of the system and want to make sure the system really boots from the correct partition. This way 1.4.5 can continue to have a higher priority and boot as default, but with for example BootCreator bootmenu when you choose the 2.0 option, the bootdevice option there will force 2.0 to use the actual MOS 2.0 partition rather than the 1.4.5 one.

[ Edited by Piru on 2008/7/2 15:47 ]