USB booting :: No bios, No floppy, but I still wish to boot USB

What if I cannot update the bios to support usb booting and my pc does not have a floppy.

What do I have to do to get the USB device to boot into dsl using just a cdrom and usb stick?

I have searched everywhere for an answer so any comments are welcome. Please help.

Use the bootfrom option like this:

dsl bootfrom=/dev/sda1

original here.