On Wed, 24 Sep 1997 00:19:18 -0400 (EDT)  "Matthew N. Dodd" wrote:

> On Wed, 24 Sep 1997 davidb@melb.convergent.com.au wrote:
> > The loopback device tells the PROM not to care about the mouse or
> > keyboard.  Otherwise the machines will lock up at the POST stage
> > without them.  It doesn't force serial console.
> 
> What, exactly does this loopback device look like?

Look at the mailing list archives on
ftp.netbsd.org:/pub/NetBSD/mailing-lists/port-pmax/port-pmax.0112
starting at line 87.

Simon.