On November 11, 2019 9:58:44 PM GMT+02:00, Jochen van Waasen <jochen@vanwaasen.ch> wrote:

Hi

I would like to use your tool to mod my bios.

First step would be to create a backup of my BIOS:

# dmidecode 2.12

SMBIOS 2.7 present.

66 structures occupying 2563 bytes.

Table at 0x000EB4C0.

Handle 0x0000, DMI type 0, 24 bytes

BIOS Information

Vendor: American Megatrends Inc.

Version: 4.6.5

Release Date: 10/11/2013

Address: 0xF0000

Runtime Size: 64 kB

ROM Size: 3072 kB

When I read that correctly the ROM Size is 3072 kB

# flashrom -r RDD516-NT.rom --programmer internal

flashrom v0.9.7-r1782 on Linux 4.4.184.x86_64.1 (x86_64)

flashrom is free software, get the source code at http://www.flashrom.org

Calibrating delay loop... OK.

Found chipset "Intel C206". 

This chipset is marked as untested. If you are using an up-to-date version

of flashrom *and* were (not) able to successfully update your firmware with it,

then please email a report to flashrom@flashrom.org including a verbose (-V) log.

Thank you!

Enabling flash write... Warning: SPI Configuration Lockdown activated.

OK.

Found Macronix flash chip "MX25L6405(D)" (8192 kB, SPI) at physical address 0xff800000.

Found Macronix flash chip "MX25L6406E/MX25L6436E" (8192 kB, SPI) at physical address 0xff800000.

Found Macronix flash chip "MX25L6445E" (8192 kB, SPI) at physical address 0xff800000.

Multiple flash chip definitions match the detected chip(s): "MX25L6405(D)", "MX25L6406E/MX25L6436E", "MX25L6445E"

Please specify which chip definition to use with the -c <chipname> option.

Which chip should I select?

When I select one chipset a 8MB file is created. Shouldn’t a ROM back be only 3072 kB?

Any help is appreciated.

Best Regards

Jochen