DDEI might show an error warning when installing on Dell R420.
When using the very latest Dell R420 hardware with DDEI version 2.0, you might get the following error message.
Unsupported Hardware Detected
This hardware (or combination thereof) is not supported by Red Hat. For more information on supported hardware, please refer to http://www.redhat.com/hardware
You might also see an additional error message during system startup and system logs:
Detected CPU family 6 model 62
UNSUPPORTED HARDWARE DEVICE: CPU family 6 model > 59
The issue happened when Dell upgraded the R420’s CPU from Intel ® Xeon® E5-2420 (1.90GHz) to E5-2420 V2 (2.20GHz) sometime Q2 2014. The Linux kernel used in DDEI 2.0 GM build (same as CentOS 6.3) does currently not support this new CPU.