boot image to upgrade various firmwares

Thu May 8 10:30:39 CDT 2008

Hi,

I'm looking for a DOS-compatible boot image that I can be used to
upgrade bios and cd/dvd drive firmware on dell machines. Using an old
freedos 1440k image I was able to burn an .iso and boot from it. However
it didn't install the correct drivers to access the cd drive, so I
couldn't get to the firmware upgrade file.

What kind of utility is best for that task?

Thanks,