Restarting difficulties

[KC9UDX]

You *could* have an activity light at boot time if you or someone else writes a U-Boot that supports this. But the trouble is that you're not going to see anything useful, anyway. Because likely U-Boot has stopped with an error. You could see this with a serial console adaptor and another PC to act as a terminal. I recommend doing this. But, what might be more simple is just to switch to a different U-Boot. I've seen numerous reports of trouble with the U-Boot that comes with Manjaro.