[coreboot] C720 - ROM file

[Aaron Durbin]

On Tue, Feb 4, 2014 at 12:49 PM, Carmelo Ingrao <carmelo at ingrao.fr> wrote:
> Le 4 févr. 2014 à 16:54, Aaron Durbin <adurbin at chromium.org> a écrit :
>
>> On Tue, Feb 4, 2014 at 9:51 AM, Carmelo Ingrao <carmelo at ingrao.fr> wrote:
>>> Le 4 févr. 2014 à 16:48, Aaron Durbin <adurbin at chromium.org> a écrit :
>>>
>>>>
>>>> Ya. You aren't just going to be able to run that script. It assumes
>>>> you have coreboot checked out and cbfstool built as well as SeaBIOS
>>>> built.  Perhaps Kevin can help you with that? Or he could at least
>>>> post his SeaBIOS image. You could stitch it into your image.bin after
>>>> reading it with flashrom.
>>>>
>>>> -Aaron
>>>
>>> Okay !
>>>
>>> I have a friend who has the same C720P than me, he has Fedora installed on it (no more ChromeOS)
>>>
>>> If he dump his bios with « sudo flashrom -r path//to/romfile »  can I write it to my chip with « sudo flashrom -w path/to/file » ?
>>
>> That should work, but make sure you use the '-i RW_LEGACY' option on
>> writing so that it only updates the SeaBIOS portion of the SPI.
>>
> Hello
>
> Houston, we have a problem !!!
>
> My friend has removed the write protect screw, and now he does NOT have SeaBIOS anymore !!!
>
> At the blank screen if he press CTRL + L he has like me he heards a bip …
>
> :(
>
> Do you have any idea ?
>

Just so the internets are aware as well. Here's how we recovered it on
 ChromeOS:

# mkdir /usr/local/test
# chromeos-firmwareupdate --sb_extract /usr/local/test/
# flashrom -w /usr/local/test/bios.bin -i RW_LEGACY

That should restore the contents of that section of the flash.

-Aaron