PXE-IPv6
SecureBoot-compatible UEFI netboot over IPv4 and IPv6
UEFI/PXE-netboot-install describes a method for preparing a self-contained netboot image for use with UEFI-based systems. However, with the introduction of UEFI SecureBoot, it is not possible to boot self-built netboot images on all UEFI systems without either disabling SecureBoot on the target system, or updating the SecureBoot key configuration in the firmware and signing your netboot images. This page therefore describes an alternate method for netbooting Ubuntu using a pre-prepared UEFI grub image.
This method also has two additional key features: * it allows booting to a grub menu providing a selection of boot options * changes can be made to the boot configuration by dropping in stock Ubuntu netboot images and/or updating the grub.cfg, with no requirement to regenerate special grub images.
It is expected that future versions of MAAS will use the described method for hardware provisioning.