Regarding ATI cards, (and i assume this board has such card), you can grab the bios from /proc under linux. That worked for R300/R500 radeon video cards, maybe it still works on more recent ones :
as root: cd /sys/bus/pci/devices/<pci bus id>/ echo 1 > rom cat rom > /tmp/vbios.rom echo 0 > rom
Keep in mind, i am not sure it's 100% complete ram bios, but that's what xorg ati devs suggested as steps to dump the bios when identifying some bugs with radeon hardware on linux.
2012/3/12 Andrew Goodbody ajg4tadpole@gmail.com
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:
- ftp://174.142.97.10/bios/CPU/**E350M1(1.50)ROM.zipftp://174.142.97.10/bios/CPU/E350M1%281.50%29ROM.zip
- Extract the 4MB UEFI image (E350M11.50)
- Use 7-zip (version 9.21 beta) to decompress.
- Hex edit this file: E350M1(1.50)ROM\2\CSMCORE\1.**raw
- Find the start of the video option rom. It starts with 55 AA and contains text "AMD Fusion Wrestler generic VBIOS"
- The length is the byte after 55 AA (71) * 200h = E200h.
- Extract E200 bytes starting at 55 AA.
b) When the board arrives...
- Boot MSDOS and start DOS debug
- At the - prompt, enter these commands: -n vga.bin -rbx -1 -w
- 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
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