If you're using custom hardware, or want to replace the ROM
monitor on your board, you'll need a boot loader that knows
how to decompress and transfer control to the kernel. The current
trend is to include this functionality in the
ROMMontior?,
as is the case with
ppcboot.
Although some of the data is board specific, you can assemble the
bits from information available on the net:
http://lists.linuxppc.org/listarcs/linuxppc-embedded/199911/msg00034.html
For
PreP? and
PowerPlus? SBC's, see:
The old bootloader included in the kernel source tree, originally
written for the
MotorolaMBX
board, and since ported
to a wide range of platforms. This is the start-up component of
the zImage that knows how to decompress the kernel. mbxboot is now being
rendered obsolete by
ppcboot.