On Sat, 12 Jan 2002, Tothwolf wrote:
> On Sat, 12 Jan 2002, Pat Finnegan wrote:
>
> > Yah, it still 'starts up' as much as possible. I'm about to stick a
> > 2-channel scope on that to see if I can decipher the connector. If not,
> > I'll hook it up to one of Purdue's $5k 'logic analyzers' eventually...
>
> Have you tried connecting it to the network with a sniffer running to see
> how it tries to load its boot image?
I've learned from somewhere (perhaps an earlier message on classiccmp)
that it uses its own proprietary protocol. Anyways, I'll have to hook my
10BaseT MAU up to it so I can connect it to my network.
> > Here's my prelim analysis after taking the cover off:
> >
> > 2) '286 Pheonix BIOS EPROM
> > 3) Some 3com "6063-06 WYL" EPROM. I'm guessing the net-boot firmware.
> > 4) Nat'l Semi 8390 ethernet controller IC
>
> Well, from the looks of it, it has a typical 286 era bios with a network
> boot rom as the second rom. The 839x series network controllers are very
> common, and most everything supports them. Have you had a look at the
> Etherboot project's website? http://etherboot.sourceforge.net/ Version 4.6
> and earlier supports 286 hardware. If the second rom is indeed a feature
> rom for netbooting, you could simply replace it with one you create with
> etherboot and a programmer.
>
What you have said is basically what I was planning to do. Unfortunately,
after careful analysis of the screen printing next to the chips ("odd" and
"even" is printed there), I've determined that it won't be quite that
easy. I'm thinking about dumping the rom images and replacing part of it
if possible. I was hoping to use etherboot, but I'm not sure if I'll be
able to get it onto the system easily. Perhaps I can use the 34pin header
for that?
-- Pat
> -Toth
>
Received on Sun Jan 13 2002 - 01:10:28 GMT