Hi all!

I am in need of a BIOS update. However, I can't find any versions of my bios for Ubuntu! I have a Dell Optiplex 745 Mini Tower, running Ubuntu 13.04. The current bios version is 2.3.1. The latest version is 2.6.6. I tried to install the driver from Wine and it said that it was not allowed to flash the bios, so it couldn't continue. Any ideas?