Re: [coreboot] ASRock E350M1 video option ROM?

[Andrew Goodbody]

On 11/03/12 05:04, Scott Duplichan wrote:
> I know of two ways to extract the legacy video option rom:
>
> a) Download the image from the manufacture's web site:
>     1. ftp://174.142.97.10/bios/CPU/E350M1(1.50)ROM.zip
>     2. Extract the 4MB UEFI image (E350M11.50)
>     3. Use 7-zip (version 9.21 beta) to decompress.
>     4. Hex edit this file: E350M1(1.50)ROM\2\CSMCORE\1.raw
>     5. Find the start of the video option rom. It starts with
>        55 AA and contains text "AMD Fusion Wrestler generic VBIOS"
>     6. The length is the byte after 55 AA (71) * 200h = E200h.
>     7. Extract E200 bytes starting at 55 AA.
>
> b) When the board arrives...
>     1) Boot MSDOS and start DOS debug
>     2) At the - prompt, enter these commands:
>        -n vga.bin
>        -rbx
>        -1
>        -w
>     3) The option rom is vga.bin in the current directory.
>
> Thanks,
> Scott

a) is good.
b) is just going to get you 64KB of unintialised data. There is nothing 
in those instructions to access the video BIOS AFAICT.

Andrew