New blog post: https://blog.mei-home.net/posts/tinkerbell-5-hookos-direct-boot/
I'm trying to directly boot Tinkerbell's HookOS without using EFI/iPXE. I'm failing to, but I have a plan.
This post is mostly a bit of detective work on why HookOS' initramfs is not booting properly. The answer is: The Raspberry Pi's firmware.