[flashrom] flashrom 9.6 read error

jayasree.chakravarthy at wipro.com jayasree.chakravarthy at wipro.com
Thu Aug 30 05:05:03 CEST 2012

Hi Stefan,

Thanks  a lot for your immediate reply.
We are using BIOS+ME region with the help of vendor tool.

>From Flashrom tool, we are looking for Save/Update the NVRAM BIOS setting region, If it is possible could you please help us to provide the command?
What is layout file, how we can use it, is this solves our issue?

Thanks & Regards,

From: Stefan Tauner [stefan.tauner at student.tuwien.ac.at]
Sent: Wednesday, August 29, 2012 8:49 PM
To: Jayasree Chakravarthy (WT01 - Manufacturing & Hi Tech)
Cc: flashrom at flashrom.org
Subject: Re: [flashrom] flashrom 9.6 read error

On Wed, 29 Aug 2012 09:22:58 +0000
<jayasree.chakravarthy at wipro.com> wrote:

> Hello,
> This is regarding the issue on flashrom tool read error.  When we try to read/write/erase the bios image by using the below command, we are getting the transaction error opcode 0x03 failed. None of the flashrom command were working.
> Flashrom -p internal:ich_spi_force=yes  -r   a.bin
> Winbond chip: W25Q64, Rhel 6.0 OS, Please find attached the log.
> Is there any patch available to unlock the ME region?
> Could you please help us to resolve this issue?

Hello Jayasree,
We are working on unlocking it, but intel does not provide us any
documentation so please do not expect a solution soon.

Flashrom can do partial writes (e.g. it could update just the BIOS
region) by using layout files (see manpage). The problem is that there
is no way for flashrom to tell if updating the BIOS region is enough or
if that would brick the board. The reason is that the ME is a small
embedded processor inside the chipset of the board that has full
access to all components and different versions of its firmware (which
is stored in the ME region) might require different versions of the
BIOS and vice versa. You need to get that information from the mainboard
vendor or use the vendor tools for updating, sorry.
Kind regards/Mit freundlichen Grüßen, Stefan Tauner
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