Check the hardware inventory page in the lifecycle controller.   
I have ubantu 14.04.3 server OS on a DVD disk, which is inserted into the Dell R220 Server. I'm trying to install the OS but nothing happens when I go through OS Deployment. Server just restarts and goes through the start-up pages. Also,  1) Do I need RAID to install this OS? 2) If so, how to I install the RAID controller? it says "Unable to launch RAID Configuration wizard" when I go to configure it.  I have SAS-RAID_Driver_H9W18_WN32_6.802.19.0_A05 on a usb plugged into the server, but I can't figure out how to install it. Thanks for any help.
Trying to install ubantu OS on Dell R220 Server - unable to launch RAID Config 
wizard