When provisioning my Supermicro SYS-E200-8D machines (X10 motherboard), i had the need to enable UEFI boot mode, and provision through PXE. This may seem straightforward, but there is a set of BIOS settings that need to be changed in order to enable it. First thing is to enable EFI on LAN , and enable Network Stack. To do that, enter into BIOS > Advanced > PCIe/PCI/PnP configuration and check that your settings match the following: See that PCI-E have EFI firmware loaded. Same for Onboard LAN OPROM and Onboard Video OPROM. And UEFI Network stack is enabled , as well as IPv4 PXE/IPv6 PXE support. Next thing is to modify boot settings. The usual boot order for PXE is to first add hard disk and second PXE network . The PXE tools (for example Ironic) will set a temporary boot order for PXE (one time) to enable the boot from network, but then the reboot will be done from hard disk. So be sure that your boot order matches the following: See that the first order is hard d