pdp-11 ethernet boot

Bill Gunshannon bill.gunshannon at hotmail.com
Mon Oct 29 07:56:33 CDT 2018


On 10/28/18 11:02 PM, Patrick Finnegan via cctalk wrote:
> On Sun, Oct 28, 2018 at 10:34 PM Charles Dickman via cctalk
> <cctalk at classiccmp.org> wrote:
>> The boot ROMs for uPDP-11 contain loaders for XH (ethernet) was there any
>> kind of standard for the server?
> I'd guess that it was mostly for DECserver 500/550s to boot off of a
> VAX/VMS host.
>
> So... yes, a MOP server running on a VAX.
>
I think Terry Kennedy wrote one for RSTS as well.


My guess is it could have been used to download code to

boot pretty much any network aware OS.  Think of it as

the Bootblock on a disk.  A first stage loader that loaded

a second stage loader that could then load pretty much

anything.


bill




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