Comment 34 for bug 1789650

well, no joy. I went into the EFI boot settings in firmware and re-ordered all the EFI boot options so that the Network device was first.

That allowed me to re-deploy, however once that deployment was finished, the next one failed because that deployment put the ubuntu item, once again, at the beginning of the EFI boot table.

/-----------------------------------------------------------------------------\
| * Integrated SAS: ubuntu |
| * Embedded NIC 1: Broadcom NetXtreme II Gigabit Ethernet (BCM5716C) |
| * Embedded SATA Port E Optical: TEAC DVD-ROM DV-28SW |
| * Integrated SAS: EFI Fixed Disk Boot Device 1 |
| +/- to move up/down | <ENTER> to accept |
\-----------------------------------------------------------------------------/

As an aside, I had also de-selected all boot devices except for Embedded NIC 1. And after the deployment that did work, I checked again and they're all back on again:
* Integrated SAS: ubuntu [X]
* Embedded NIC 1: Broadcom NetXtreme II Gigabit [X]
Ethernet (BCM5716C)
* Embedded SATA Port E Optical: TEAC DVD-ROM DV-28SW [ ]
* Integrated SAS: EFI Fixed Disk Boot Device 1 [X]

So there's likely a firmware component too but needless to say, it's caused several re-deployments to fail. The only option I have now is to turn EFI off on these machines.