Installing RedHat to a usb 2.0 drive

[Andrew <andrewn pssnet com>]

Hello,
I've got an Intel 850demv2 motherboard with usb boot support and also  a
40 GB Toshiba hard drive with usb interface. When trying to install
RedHat 8.0 I get, under the selected drives an "hda, hdb, sda (as the
usb drive)" but when trying to use fdisk to partition the drive nothing
happens. 
Would there be patch that I can apply during the install or pass a
kernel argument to be able to install to the usb hard drive?

Regard,
Andrew.