There is no installation image named "ubuntu-mate-server 20-10". What was exact name? You are right. it was late that day. almost midnight after finishing a 12 hour workday. it is the ubuntu-20.10-live-server-amd64.iso that i used to install.
i may jumped to early to a conclusion based on a previus version of the ubuntu-mate-"version"-desktop-amd64.iso so i tested the ubuntu- mate-20.10-desktop-amd64.iso where it was solved. this may be not in the installer but the package named ubuntu-mate- desktop -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1919098 Title: Netplan not linked to networkmanager To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-mate/+bug/1919098/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs