How can I use Pegasus R6 with Mac mini?

I bought Pegasus R6 (Promise Technology, Inc). I connected to my Mac mini. But Pegasus R6 did not appear on desktop. In order to use Pegasus, MacBook Pro?iMac must have MacBook Pro EFI Firmware Update installed. But Mac mini does not have EFI Firmware Update. How can I use Pegasus R6 with Mac mini?