Full root filesystem encryption on an Armbian system (new, fully rewritten, replaces my earlier tutorial on this topic)   MMGen (https://github.com/mmgen)   This tutorial provides detailed, step-by-step instructions for setting up full root filesystem encryption on an Armbian system.  The disk can be unlocked remotely via SSH or the serial console, permitting unattended bootup.   An automated script that performs the same steps, saving you much time and effort,