rhevh install fails with Dell raid controller

I tried several permutations of RAID settings on my server,

and in every case the installation would complete, but the

server would not be able to boot.

I expected to see a disk option for my RAID 1 logical drive,

but it did not show up in the list.  Rather there were /dev/mapper

paths to each of the individual drives.  I tried using RAID 1

with two drives, RAID 0 with one drive, and then deleting all

logical drives on the RAID controller.  No joy.

Here is the output of lspci -v for the controller.

00:1f.2 RAID bus controller: Intel Corporation 631xESB/632xESB SATA RAID Controller (rev 09)
    Subsystem: QUANTA Computer Inc Device 8950
    Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 20
    I/O ports at ec00 [size=8]
    I/O ports at e800 [size=4]
    I/O ports at e400 [size=8]
    I/O ports at e000 [size=4]
    I/O ports at dc00 [size=32]
    Memory at fdffbc00 (32-bit, non-prefetchable) [size=1K]
    Capabilities: [70] Power Management version 2
    Capabilities: [a8] SATA HBA
    Kernel driver in use: ahci
    Kernel modules: ahci