eeprom command on Sparcs

[Andrew Torda D31 5503]

Does /usr/bin/eeprom work on other peoples Sparc's?

On a 4/65 with OS 4.1, (eeprom rev 1.3) mine says
    eeprom: /dev/eeprom: Error 0
On a 4/490 server, it says,
    eeprom: software area checksum wrong

Furthermore, the manual entry lists eeprom variables which are not even
really in the eeprom, e.g. memsize.

Looking inside /usr/bin/eeprom with strings shows a bunch of strings which
correspond to those in the manual entry, not those of the actual eeprom.

Finally, it seems that the eeprom could also live in
  /dev/openprom
but
  eeprom -f /dev/openprom
says
  eeprom: /dev/openprom: No such device

Does this command work for anyone else ?
Thanks.
-Andrew Torda