I just got my Rock Pi 4. Really excited, installed my NVMe with debian that I installed using a normal computer.
I plugged in the HDMI cable, and USB C cable, only green light is turned on, and the display is not turned on.
Please let me know what is going on? I am a SBC noob.
Welcome. First at all, make sure it can boot from uSD(microsd) and eMMC before attempting NVMe booting.Do you have a Rockpi4 A,B or C?
Yes, I just tried it and it works!
So Rock PI only works with the ubuntu that is downloaded from rock pi website? Is it safe? can I make my own image?
Sure, you can do whatever you want or you’re capable of.
Here’s a documentation how to do it in armbian:
https://docs.armbian.com/Developer-Guide_Build-Preparation/
NicoD also has several instructive youtube videos for armbian newcomers:
In case you want to try it all at once, I recommend twisteros armbian for RockPi4:
https://twisteros.com/twisterarmbian.html
Thank you for your answer. So I need to build the image through armbian? I can’t just use the arm image that I download from debian website?
Either option is valid. You can build one image tailored to your requirements or just download a ready made compatible image for your RockPi4.