[flashrom] Need help with failed flash. part 2.1

[Stefan Tauner]

On Fri, 16 Nov 2012 12:07:27 +0100
Stefan Tauner <stefan.tauner at student.tuwien.ac.at> wrote:

> On Fri, 16 Nov 2012 10:33:25 +0100
> simon <simon.riget at gmail.com> wrote:
> 
> > Den 13-11-2012 14:06, Stefan Tauner skrev:
> > > On Tue, 13 Nov 2012 11:33:32 +0100
> > > Simon Riget <simon at paragi.dk> wrote:
> > >
> > >> Biso was flashed with backup and are hopefully restored.
> > >>
> > >>
> > >> flashrom -p internal -V: http://paste.flashrom.org/view.php?id=1442
> > >> lspci -nnvvvxxx: http://paste.flashrom.org/view.php?id=1443
> > >> superiotool -deV : http://paste.flashrom.org/view.php?id=1444
> > >> flashrom -p internal -r readout.rom:
> > >> http://paste.flashrom.org/view.php?id=1445
> > > as discussed on IRC it is believed that the chip's "boot block lockout"
> > > is enabled and not possible to be disabled by software and that it is
> > > safe to update the bios by only writing to the unprotected parts.
> > >
> > > flashrom supports writing arbitrary address ranges out of the box
> > > (reading, verifying and erasing support has not been merged though).
> > > to do so one has to tell flashrom the flash "partition table" with the
> > > help of a layout file. please consult the manpage about the details for
> > > example how to select an address range to operate on.
> > >
> > > your layout file should look like this:
> > > 00000000:0003bfff main
> > > 0003c000:0003ffff bootblock
> > >
> > > and you want to flash the main part only. presuming that the layout
> > > file is named "layout.txt", you will probably want to execute something
> > > like this:
> > >
> > > flashrom -p internal -V -l layout.txt -i main -w <imagename>
> > > it should say verified at the as you have seen already. if it does not
> > > for any reason, but tell you the "unknown state" message, please write
> > > the backup again. you should always be able to go back to this safe
> > > state, as long as you dont reboot.
> > >
> > > if it says verified then the new contents mixed with the old bootblock
> > > are written correctly. as i explained to you we are not 100% sure that
> > > his is a legit state, but have little doubt and you can reboot then.
> > >
> > Result:
> > The flashrom program terminated succesfully
> > The BIOS settings where wiped. (Reinstated with BIOS setup)
> > The mashine can boot
> > 
> > However the BIOS version are still the same and I have seen no other 
> > signs that the BIOS was upgraded.
> 
> please upload the following images to http://paste.flashrom.org
>  - the original backup you have read out before doing the write (should
>    be equal to the one you did at the very beginning i presume)
>  - the image you used in the -l ... -w ... call
>  - the image flashrom reads after issuing the -l -w call (this should
>    be a mixture of the first (the bootblock part) and the second one
> 
> also i would like to see the log file generated by
> flashrom -p internal -V -l layout.txt -i main -w <imagename> -o flashrom.log
> or at least the verbose output.
> 
> you said the bios version did not change. how did you determine this
> fact exactly?

what was the outcome eventually? i would like to know if i can mark the
chipset and mainboard as supported :)

-- 
Kind regards/Mit freundlichen Grüßen, Stefan Tauner