Hi, first of all thank you for your work. I downloaded JetsonNanoUbuntu-20-image.xz from the repository of Jetson-Nano-Ubuntu-20-image, but I always encountered failures to burn it successfully into the sd card.
Tried using different burners including Pi imager and balenaEtcher (latest version), have you encountered this problem or can you give me a download address for the image, thanks again!