mcguire at neurotica.com
Fri Aug 13 13:57:08 CDT 2010
On 8/12/10 10:08 AM, dwight elvey wrote:
>>> Under SunOS, you can use the program called "eeprom" to dump out most
>>> of the important contents. As far as restoring it, I'm not sure about
>>> that, as I don't know what ROM-based code the very early SPARCbooks use.
>>> One way to do it might be to read it out using an EPROM programmer.
>>> My Data I/O supports the MK48T02, for example.
>> I think I can read it with my programmer. At least with an adapter to make
>> it think it is a 2716.
>> I tried the "eeprom" and it didn't work :(
>> This must be before someon realized it was a good idea. Acording
>> to the history page I saw, the SparcBook was relatively early in
>> the history of things.
> Do you think I could use the program adb with /dev/nvram?
> Could I use it to display and or edit the nvram values?
If /dev/eeprom or /dev/nvram exists, you may be able to use that. Try
to dump the contents via that interface and see if it actually maps to
the hardware. You can try "od -x /dev/nvram" to do a hex dump.
Port Charlotte, FL
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