On MIPS based platforms, we have 2 different bootloaders - Colo for the Cobalt based MIPS machines and Arcload for the SGI machines. At this time, in the boot scenario, the only bootloader we can build and that is usable is Cobalt bootloader. On SGI machines that follow this build method, we recommend to do a netboot. Information about netbooting can be found at the link below.