@chrispy I think you’ve mixed up UEFI and BIOS. This machine really looks like it’s a UEFI machine, and your DHCP server is telling it to use a BIOS boot file. You’ll probably want to go over this document and that should put you on track: https://wiki.fogproject.org/wiki/index.php?title=BIOS_and_UEFI_Co-Existence