Reworking kexec for signatures

I don't buy systems that have 2 or less DIMM slots; I wouldn't buy a motherboard that doesn't allow UEFI manipulation. Yet my computer today has only 2 of its slots populated, and I might trash the motherboard before I upgrade the memory. I have no plans to ever use the... I have no idea, 38 SW/HW/JOBD SATA ports the beast has. But some people would, apparently, and there is a huge market for hackable systems.

That set-top boxes aren't today easily SW hackable is largely irrelevant; not being able to add memory or an additional drive largely makes them not legitimate targets for playing with. Except outside of some circle-jerk geekathon type scenario.