[coreboot] ASRock E350M1 video option ROM?
ajg4tadpole at gmail.com
Mon Mar 12 12:35:00 CET 2012
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://188.8.131.52/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
> 3) The option rom is vga.bin in the current directory.
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.
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