BIOS Flashing From Linux
Step 1: Download FreeDOS boot disk floppy image We are fortunate that guys at FDOS site have prepared one suitable for us. Use the OEM Bootdisk version, the one with just kernel and command.com, because it leaves more free space on disk for the flash utility and new BIOS image. After you download the image, you need to decompress it. In other words:
wget http://www.fdos.org/bootdisks/autogen/FDOEM.144.gz gunzip FDOEM.144.gz
Step 2: Copy your BIOS flash utility and new BIOS image to the mounted floppy disk image
Requirement for this step is that you have support for the vfat and loop file systems in the kernel. Or you can have those features compiled as modules. In the latter case, load the modules before the next step, like this.
modprobe vfat modprobe loop
Consult /proc/fileystems to see if you have the needed file systems supported. If you do, you should be able to "loop mount" the floppy disk image to some temporary path:
mkdir /tmp/floppy mount -t vfat -o loop FDOEM.144 /tmp/floppy
If the mount went without errors, copy BIOS flash utility and new BIOS image to the mounted floppy disk image. You'll probably have to unzip the archive you downloaded from your motherboard vendor site, to get to those two files. Here's just an example for my motherboard (in your case, files will have different names, of course):
# unzip 775Dual-VSTA\(2.60\).zip Archive: 775Dual-VSTA(2.60).zip inflating: 75DVSTA2.60 inflating: ASRflash.exe # cp 75DVSTA2.60 ASRflash.exe /tmp/floppy
Doublecheck that everything went OK, that those two files weren't too big for the floppy:
Filesystem 1K-blocks Used Available Use% Mounted on /tmp/FDOEM.144 1424 990 434 70% /tmp/floppy
Finally, unmount the floppy disk image:
Step 3: Burn a bootable CD which will emulate floppy device for us
Next step is to burn the floppy image to a CD/DVD-RW media, but in a way that it can be booted afterwards. First we need to make a bootable CD image, and then burn it. Notice that on some modern distributions, cdrecord is renamed to wodim, and mkisofs to genisoimage, but the parameters below should be the same.
mkisofs -o bootcd.iso -b FDOEM.144 FDOEM.144 cdrecord -v bootcd.iso