Sun dead battery / unresponsive openboot

[Ryan K. Brooks]

Have you tried sending a break?

> On May 3, 2015, at 5:50 PM, Jules Richardson <jules.richardson99 at gmail.com> wrote:
> 
> On 05/03/2015 03:48 PM, Sean Caron wrote:
>> I have seen almost anything once on Sun machines :O Are you testing with
>> all cables disconnected just power and serial terminal? I have seriously
>> seen a bad network cable cause mysterious hangs on a SS10 once...
> 
> Yeah, initially I just had serial and power hooked up, but because it seems to be defaulting to a network boot I did try connecting it up to my LAN too, but with no luck.
> 
>> You've tried some of the other usual troubleshooting stuff like swapping
>> out/around some of the memory, removing Sbus cards, etc?
> 
> Not yet, but will do so.
> 
> I did just attack the PROM module with a dremel and so am now running with good battery voltage via an external battery (but at this stage it still throws up an "The IDPROM contents are invalid" message, of course)
> 
> I'm suddenly wondering if the serial port is fried. It's possible that I've only ever run this machine with keyboard/rodent/monitor attached, not via serial console, and a hardware fault on the rx side would explain the symptoms. I'll drag the necessary bits out of the basement and see if that changes anything (this room is rapidly filling up with vintage crap ;-)
> 
> cheers
> 
> Jules
>