Ubuntu 20.04 on Nano?
To run the Ubuntu 20.04 on Jetson Nano is currently not supported by NVIDIA, but your can refer to the custom build by developer:
I am using ubuntu 18.04 on the flashing host (host pc). I’ve been flashing the target board without any problem, is there any problem if I upgrade to 20.04?
We don’t support Ubuntu 20.04 yet, customer need to resolved issues which delivered from Ubuntu 20.04 by themselves.