I tried both Debian and Ubuntu images for ROCK Pi N10 and in both cases I can’t stop booting in U-Boot to modify the booting process (e.g. to add my DT overlay).
When I renamed the boot.scr in /boot partition, the board tries to boot from /boot/extlinux directory.
When I rename the /boot/extlinux, it goes to U-Boot command line, but it can’t read from serial console (even though it writes to it!).
How can I cure that problem?
The minicom settings are correct, as when Linux boots normally, I can communicate via serial console in both directions.
Thank you in advance,