I burned Ubuntu Server x64 20.04 image using Raspberry Pi imager. I tried several times headless(without attaching monitor, keyboard etc.) installation with a static IP for Wifi. I failed, finally I gave up I went with DHCP. This adress helped me a lot. How to install Ubuntu on your Raspberry Pi | Ubuntu
In this tutorial, we walk you through the process of installing Ubuntu Server on a Raspberry Pi, connecting it to the…ubuntu.com