HP9133D disk replacement.

[Christian Corti]

On Fri, 31 Oct 2008, Tony Duell wrote:
> Well, if you want to give it a go, I can probably find an image of the
> 9133H firmware EPROM. And I should have the memory/IO map of the unit
> somewhere. At least that would tell you which address corresponds to

Feel free to email me the firmware. I will then try to do my best :-)

>> For example, I have disassembled the firmware of the HP 7958A and found
>> out how to low-level format a foreign ESDI disk (the original one had
>> failed) with different geometry (the geometry is read from the drive since
>> it is ESDI). In this case HP-UX mediainit in guru mode was my friend.
>
> I hope you've kept a record of this procedure. It's the sort of thing
> others may have to do sometime...

Of course; it wasn't trivial to find the correct parameters (I think that 
I even had started to disassemble the PA-RISC binary of mediainit until I 
found the instructions somewhere on the net). After all, it is basically 
sending the CS/80 "INIT MEDIA" command with IIRC function number 3 (which 
is undocumented).

Christian