How to upgrade your BIOS using a DOS Boot CD Loaded with DOS BIOS Utils

http://www.linuxinsight.com/how-to-flash-motherboard-bios-from-linux-no-dos-windows-no-floppy-drive.html

Now here’s the genius stuff:
How to upgrade your BIOS using DOS Boot CD and DOS BIOS Utils when the BIOS Update Utility and BIOS Firmware won’t fit on a standard sized floppy
http://www.linuxinsight.com/how-to-flash-motherboard-bios-from-linux-no-dos-windows-no-floppy-drive.html#comment-1508

Problem, Cause, Resolution
One thing I noticed with the instructions is that the download of FDOEM.144 didn’t actually contain command.com I’m not sure that this was because of a mistake on my part. So I had to copy command.com into the enlarged FDOEM.144 image. Then the iso would boot. Dos won’t boot without a command interpreter…

Just in case the other website goes offline: instructions