boot2/loader: serial port handling

[Garrett Cooper]

On Fri, Oct 19, 2012 at 5:31 PM, George Neville-Neil
<gnn at neville-neil.com> wrote:

...

> BTW, sorry to come in late on the thread.  Would this cause the loader
> to reset the machine?  On a box in my work testlab I have not
> been able to use a recent /boot/loader for a few weeks.
>
> I get to the BIOS drive C: is disk0
>
> bit and BOOM.

One would hope not, but it might if the code is doing something
potentially wonky or some assumptions are invalidated somehow.
-Garrett