I actually have to different systems (one Dell and another). The problem is identical on both systems. I'm setting up RAID 0.
When attempting to install Server 2008 R2 the installation starts, but is interrupted by the installation program with "A required CD/DVD driver is missing". Then when removing the installation media it's not possible to get access to a new DVD or CD with the requested driver on. Also Dell ships them as .exe-files.
So I deleted the RAID 0 array that was set up from the factory and did several attempts with a single disc, but that did not help either.
Then I tried to format the disks on a separate Windows Server 2008 R2-system. Formatting was possible using USB connection, but when trying to create a RAID 0 array on that system (two discs connected by USB) I got a message that this was not possible to do.
Then I the bought a new DVD-drive (a 4-5 year newer model and another make) and tried to install with the original DVD-installation media from Microsoft. The same problem appeared again: "A required CD/DVD drive is missing..." Please insert media containing the drivers. This media is not accessible when the media with the correct drivers is inserted into the drive. No content on any media inserted is accessible.
[removed email and tel number. rindi, EE Zone Advisor]
Have a nice day. Or a perfect day in Microsoft heaven. Maybe buying the 2012 version will fix it?