We currently have a fairly large amount of Jetson Nano based devices in the field, running a customized version of Ubuntu 18.04 with Jetpack 4.4.
These devices would need to be upgraded to balenOS.
Aside from dispatching a bunch of technicians to perform a USB flash in the field, we are looking into the feasibility of upgrading these OTA, in-place in the field.
We have enough RAM available to load the uncompressed balenaOS image into a ram disk, and perform the upgrade from there.
Can a balena engineer comment to the differences in partition layout? Specifically, the partitions involved in the early boot stage are crucial.
Any other feedback into the feasibility of this would be helpful as well!