> So, the impression I get at this point is that the best option is
> for the boot loader to load itself below 4 MB, relocate itself to
> some higher chunk of RAM, if one is available, and then load the
> kernel and go. Is that correct?

Even if you find a chunk of RAM elsewhere, it might not be mapped
at all. I believe the PROM only guarantees a virtual <-> physical
memory map to exist for the first 4MB of memory.

-pk