[rescue] Sparcstation 2 help! Please

[BSD Bob the old greybeard BSD freak]

> I have a SS2 that upon bootup, states the following:
> 
> Unrecognized keyboard
> Checksum bad... loading defaults
> it then looks at what appear to be storage devices and lists them, finding
> none, it says, input devices not found.
> 
> It then gets into an unbreakable loop, that displays:
> 
> Data Access Exception
> Press b to boot c to continue and n for new session.
> 
> No keystroke will stop this and it keeps going, forever.

NVRAM going out?  Rebattery it or find another.  Force a set-defaults
to clear the nvram then do a warm reset and see if that clears it.
Check for ff:ff:ff:ff:ff:ff in the mac address label in the boot prom
signon message.... a dead giveaway of a dead battery....(:+}}...

Bob