Skip on down to the menu.
Determine BIOS version from Linux command line.
You don't need to reboot just to find out what BIOS version you are running.
Run this as root.
dd if=/dev/mem bs=32768 skip=31 count=1 | strings -n 10 | grep -i bios
Found this gem in the comp.os.linux.misc newsgroup.
2007-10-04, T. Sneddon