We have a Jetson Nx with the 16 GB eMMC 5.1 memory, which is flashed and booting to Ubuntu 18.04. The issue is that this does is not enough storage for our needs.
We would like to boot instead from an external SD card, which would be inserted on a slot provided by our vendors external board (not an Nvidia board).
How can I set up the board to boot from that SD card, and not to boot from the eMMC memory ? I have flashed the SD card with the Nvidia SD card image (as I would have done for an SD card on an Nvidia dev kit board), and booted, but it boots to the eMMC still.