WIP: Amazon Alpine v2 - Breaking the Secure Boot-Chain


This paper is about the generic alpine v2 and al_boot problems.  For specifics about how it relates to the UDM, UDM-Pro, UXG, and UNVR ensure you also read:

al_boot as a Fork of U-Boot

The Annapurna (now Amazon) Alpine v2 System-on-a-Chip is an AArch64 device designed for headless high performance networking gear.  Majority of the newer UniFi offerings are based on this base system.  It makes use of both NAND and SPI flash in the boot process, and has a few quirks that are `al_boot` specific.