[LinuxBIOS] cant detect bios with flash software {Scanned}
Stefan Reinauer
stepan at coresystems.de
Fri Jun 30 22:16:47 CEST 2006
* Stefan Reinauer <stepan at coresystems.de> [060630 21:49]:
> > Im not sure what u mean by verifing that the image starts 25 a6??? are
> > you talking about an image file taken from the BIOS using VIAs flash
> > utility?
>
> I thought that might be the vendor and device id. In fact it is 8c and
> 00, as it is a 256kb part
Ok, can you please check out revision 2336. I checked in some untested
support for your flash part.
Can you try the following:
Please be careful which chip you use at a time. If you mess the order up
you will most likely render your system unusable ...
1. make a copy of your bios:
switch to the EFST, then do:
./flashrom -r legacybios.bin
2. write the copy to your bios savior
switch to the bios savior (Winbond W49F002U)
./flashrom -w legacybios.bin
3. Verify the copy in the bios savior
./flashrom -v legacybios.bin
4. Overwrite the EMST flash to see if the new flashbios version works
switch to the EMST again!
dd if=/dev/zero of=nullbios.bin bs=256k count=1
./flashbios -w nullbios.bin
./flashbios -v nullbios.bin
(it should say "verified" here!!!!)
then you can write the original bios back to the EMST so you have
two valid copies for playing later.
./flashbios -w legacybios.bin
./flashbios -v legacybios.bin
Please post the results here..
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