I installed Ubuntu just today to run WireGuard
I then followed their installation instructions for Ubuntu.
$ sudo add-apt-repository ppa:wireguard/wireguard $ sudo apt-get update $ sudo apt-get install wireguard-dkms wireguard-tools
Unfortunately their 'Quick start' has been anything, but...
$ ip link add dev wg0 type wireguard RNETLINK answers: Operation not supported
Freaking STOCK Ubuntu and STOCK WireGuard and I'm getting problems already. This is why I was staying away from Linux in the first place. Yet here I am, posting questions on a troubleshooting forum within hours.
I checked headers, checked updates, etc. No dice.