The unit started up just fine on reboot, however the background was changed from the Apollo background to an Ubuntu desktop background, and my miner for the full unit was no longer showing up in the dashboard as a miner (the 2 standard units were still showing up and mining just fine and mining on boot).
Interesting that the 2 standard units were still mining after the Ubuntu update, I wonder how that works.
The problem with the upstream ubuntu updates is that they mess with the custom bootloader we need to load to control the internal hashboard. In hindsight I should have just controlled the internal hashboard through USB as well and it would have saved a lot of headaches for me and everyone else.
Since the external hashboards are through USB these kernel updates dont mess with the functionality there. Good news is we finally isolated the probablmatic updates and will freeze those updates in the next image release. This *should* finally fix the updates bricking the full node.