I am running UTA on mac M1 and I am installing ubuntu server 20*, it come into. point where I need to install UI for it, I have upgraded/ updated apt and installed taskesl, I don't know why I can't see the option to chose ubuntu-desktop when I type tasksel it shows only this options and when I type tasksel install ubuntu-desktop it return nothing, also I have installed sudo apt-get install lightdm`
