“Here at Redpill Linpro we make extensive use of network booting to provision software onto our servers. Many of our servers don’t even have local storage – they boot from the network every time they start up. Others use network boot in order to install an operating system to local storage. The days when we were running around in our data centres with USB or optical install media are long gone, and we’re definitively not looking back. Our network boot infrastructure is currently built around iPXE, a very flexible network boot firmware with powerful scripting functionality. Our virtual servers (using QEMU/KVM) simply execute iPXE directly. Our physical servers, on the other hand, use their standard built-in PXE ROMs in order to chainload an iPXE UNDI ROM over the network. IPv6 PXE was first included in UEFI version 2.3 (Errata D), published five years ago. However, not all servers support IPv6 PXE yet, including the ageing ones in my lab. I’ll therefore focus on virtual servers for now, and will get back to IPv6 PXE on physical servers later.” […]
Full article:
http://blog.toreanderson.no/2015/11/16/ipv6-network-boot-with-uefi-and-ipxe.html
Firmware Security 