ANSWER:

Installing Server 2003 x64 on a Poweredge 2950 with Perc 5i / 6i (LSI logic) RAID drivers.

This was a nightmare but i finally figured out how to get windows setup to read my RAID drive (In my case i couldn’t use Dell’s System Build and Update Utility disc because it wants to format the entire RAID disk… i just wanted to repair my install).

The Windows Server 2003 R2 x64 installation disc will not recognize your LSI perc raid card without installing third party drivers. This becomes complicated as there is no floppy drive with the power edge 2950 and just sticking the drivers on a usb stick won’t cut it. Luckily I figured out how to get windows setup to recognize your raid drive.

Basically you have to create a USB floppy drive with your usb stick and place the drivers on it.

Step by step instructions can be found here

by brakertech from http://serverfault.com/questions/382128