After getting dragonboard 410c I installed Debian using instructions at https://www.96boards.org/documentation/consumer/dragonboard/dragonboard410c/installation/.
First I installed it to the eMMC using an SD card, and then I found eMMC too small for our project, so I installed Debian to the SD card. I can get the board to boot into Debian on the SD card by switching the boot mode to “boot from SD card”.
However, when booted into Debian on the SD card and when I instruct the board to reboot by executing “reboot” in the terminal, the board ignores the configured boot mode and boots to Debian in the eMMC.
It is important for me I can reboot remotely back to Debian on the SD card. Is there a way I can fix the rebooting issue? If not, is there a way to always boot using eMMC (e.g. have /boot partition in eMMC) and use the SD card for the remaining root fs (excluding /boot)?