Unified Kernel Image (UKI) # A Unified Kernel Image (UKI) is a combination of an UEFI boot stub program, a Linux kernel image, an initrd, and further resources in a single UEFI PE file. This file can either be directly invoked by the UEFI firmware (which is useful in particular in some cloud/Confidential Computing environments) or through a boot loader (which is generally useful to allow multiple kernel versions with interactive or automatic selection of version to boot into).
