Subject: Re: OpenFirmware: ROM checksum failure!
From: Christopher M. Cianci (cianci@oxy.edu)
Date: Thu Aug 24 2000 - 00:23:33 MDT
Thank you very much for the information -- I apologize for my tardy reply.
Unfortunately, I am still no better off; but now that I understand more about
the nature of what is happening, I called a local service shop and they also
suggested your solution -- telling me that if that didn't work I had blown my
processor. Is this possible? Or just some really badly timed coincidence?
Thanks for the advice,
-- chris --
"Richardsen, Reidar Andreas" wrote:
> Your boot-device is corrupted, not your PRAM / OF-settings. Insert a CD
> (prefferably a Mac OS CD), disconnect the power to the corrupted drive (or
> all drives) inside the machine and reboot. Now the machine should boot
> correctly from the CD.
>
> I've done this before, but only with a SCSI-drive. I reconnected the drive
> when the machine was up and running. Drive Setup correctly recognised the
> drive, and i reformatted it from there. I'm not sure if this works with
> ATA-drives.
>
> The first four partitions (partition map, drivers...) on the boot-device,
> are critical in the boot-process of a Mac. If these partitions are in any
> way corrupted, the machine will fail to boot, and drop back to Open
> Firmware.
>
> Hope this helps!
>
> --
> Reidar Andreas Richardsen
This archive was generated by hypermail 2a24 : Thu Aug 24 2000 - 00:26:06 MDT