[coreboot] [flashrom] Need assistance for using non-coreboot bios image

Idwer Vollering vidwer at gmail.com
Wed Apr 20 15:34:30 CEST 2011

2011/4/20 David Bein <d.bein at f5.com>:
> Hello Idwer,

Hello David,

>  Thank you very much for the assistance. I assume
> that something like: nvramtool -c 0 will force the
> newly booted bios to re-compute the checksum on the cmos?

I assume you want to save the current contents with "nvramtool -b
cmos_contents.bin" and restore those settings with "nvramtool -B

The manpage can be read (unformatted) in trac:

> --David
>> 2011/4/20 David Bein <d.bein at f5.com>:
>>> Hello ...
>>>  I am very impressed with flashrom. I just used it on a motherboard based
>>> on
>>> the Lynnfield 3420 chipset and it worked very well and is much faster
>>> than
>>> the
>>> AMI supplied equivalent.
>>>  I have one problem which is that the very first boot after flashing the
>>> bios rom
>>> image,  the bios complains about a CMOS checksum error and patiently
>>> waits for some input. I am assuming others have been here before. What I
>>> did
>>> next
>>> was enter the bios menu and tell it to save changes (none made). All
>>> boots
>>> after
>>> this no longer complain about the CMOS checksum.
>>>  The reason flashrom is interesting to us (aside from not being
>>> restricted
>>> by AMI)
>>> is for unattended use in customer upgrade situations. Having any upgrade
>>> path
>>> require a human to type something is a bit of a problem.
>>>  Any helpful hints will be greatly appreciated.
>> nvramtool is what you are looking for: http://www.coreboot.org/Nvramtool
>>>  Last but not least, thank you to all of you whole have put a lot of
>>> effort
>>> into
>>> this tool for use by coreboot and others. This really validates why open
>>> source
>>> is needed in the first place.
>>> --David
>>> _______________________________________________
>>> flashrom mailing list
>>> flashrom at flashrom.org
>>> http://www.flashrom.org/mailman/listinfo/flashrom

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