Swift/Dell R720XD setup

To set these up for use as backend hosts, you need to do the following extra steps before the PXE boot:

• If the system hangs forever on 'Scanning devices' and never proceeds to pxe boot, change the boot order in the BIOS to NIC first. Don't forget to change it back later after install.
• If they are going to be used for container listings, add two ssds. Due to their size etc, there's only one place they can be seated and cabled up, which will result in them showing up as disks 12 and 13 (numbering starts with 0) in the raid controller listing. You'll need to go into the raid controller bios and set disk 12 as the disk that boots. This option is found on the Control management screen, 'Select Boot Device'.
• In the raid controller bios, make sure all disks have been converted to non raid. This option is found on the VD management screen, F2 for operations (for the whole controller) or on the PD management screen, F2 for operations.

If on the boxes with ssds you see various bizarre errors like 'error creating raid' the safest thing is to dd out the first so many sectors on /dev/sdm and /dev/sdn from the installer shell, powercycle the box and try again. Preexisting md or other configuration information can horribly confuse the installer.