upgrading firmware on activated laptops

[Mitch Bradley]

Michael Stone wrote:
> Emiliano,
>
> First things first - caveat emptor.
>
> Direct access to the firmware makes it very easy to brick your machine.
> Do not attempt to use these instructions unless you are prepared to deal
> with the possible consequences of mistakes and/or failure. Consult OFW
> experts for the necessary precautions.
>
> Second - real answers. There are two user-facing mechanisms available
> for updating the firmware. One is to put a signed firmware blob in the
> right place on the filesystem and to reboot. The other is to use a
> developer key to issue to the necessary words to trigger a reflash
> directly to the firmware.
>
> See http://dev.laptop.org/ticket/5565 for the current debate about the
> former procedure.
>
> To exercise the second method, one uses a developer key and the
> information on http://wiki.laptop.org/go/Cheat_codes to gain access
> access to the Open Firmware "ok" prompt.
>
> Then, after taking appropriate precautions to ensure the availability of
> uninterrupted power, one can manually trigger a reflash with two words
> similar to:
>
>   get-file u:\q2d07.rom
>   reflash
>   

Or you can just say:

   ok  flash u:\q2d07.rom

There is no reason to separate the "get-file ..." and "reflash" steps.
> Michael
>
> P.S. -  if you have to do this for lots and lots of machines, you should
> probably try to work with us to qualify and release a firmware.
>
>
> On Sat, Dec 22, 2007 at 09:39:27AM -0300, Emiliano Pastorino wrote:
>   
>> Is there any procedure to upgrade JUST the firmware on activated laptops?
>> Thanks!
>>
>> -- 
>> Emiliano Pastorino
>> LATU - Plan Ceibal
>> Av. Italia 6201 CP: 11500, Montevideo, Uruguay
>> Tel: (598 2) 601 3724 int.: 467
>>     
>
>   
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