Hello,

> > Also, while we're on the subject, I have a Sun type 6 USB keyboard
> > plugged in (it's what I had handy) and all of the catch keys (ie
> > 'C', clover alt OF, etc) don't seem to work.  They keyboard works
> > fine once we're in MacOS though.  Is it just that I need an apple
> > keyboard?
> 
> Maybe the sun keyboard doesn't support USB Keyboard bootprotocol but 
> only the HID one. Bootprotocol is a little bit more simple to support
> with early firmware interactions.

As far as I can tell the Type 6 USB is HID-only - PS2-to-USB adaptors
for instance don't work with it - apparently PCish USB keyboards support
some sort of PS2 compatibility mode which is probably the same as the
bootprotocol you mentioned.
Besides that, the Meta key on a Type 6 should send the same scancode as
Command on an Apple keyboard ( or the left Windows-key on a PC keyboard
), the Power and Volume keys are compatible ( at least they work in
MacOS ). 

have fun
Michael