On the RaQ2, we are recommending the following:
The RaQ2 uses DOS style partitions, so build on a x86 and put the RaQ2 hard drive into that system.
Follow the directions using the reboot section.
Remove the hard drive and put it into the RaQ2 and continue your build.
On other MIPS based systems, you will have to build on the machine itself, since most of the other MIPS machines use SGI style partitions.