Dave, This is good information, and actually answer exactly what I was looking for.
Stefan from the Coreboot project point me to the nvramtool tool. I did test it before I post my question, and I have to agree that the only test I did was the -a switch, and conclude it didn't work. In fact it does work when using the -b option. It create a 256 bytes file, which I assume is similar content. To validate I ran the following from each command od -Ax -tx1z -v /dev/nvram and nvramtool -x We could see that both have the same 114 bytes pattern produce by /dev/nvram Thank to all of you, this will save me a lot of time On Mon, Oct 25, 2010 at 20:41, Dave B <[email protected]> wrote: > On 25/10/10 15:53, Gaetan Lord wrote: > > Hi, > > Not sure if you can help me on the following, but if I do not ask, I will > not get any answer. > > I have to check +- 400 identical systems. I could do the hardware section, > but the only missing pieces is the BIOS setting. > > I try flashrom on the board without success, but I think you could help me. > > I wonder if there is a way to dump the BIOS settings from the memory to a > file. > I want to do a checksum on the file, and compare with a master system. > That way I do not need to decode the settings, but I guess the checksum > will be different if > I have a different configuration. > > Do any of you have an idea, or track I could follow to achieve my goal. > > This could be a dos, or linux solution. > > Thanks in advance for any help > > > I needed similar and found it on this link: > http://www.pixelbeat.org/docs/bios/ > > Essentially (on Linux): > sudo modprobe nvram > sudo dd if=/dev/nvram of=dir/nvram-save/2010-10-26 > > ... then md5sum in the same script ? > > > Dave > > > _______________________________________________ > flashrom mailing list > [email protected] > http://www.flashrom.org/mailman/listinfo/flashrom >
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