I have gotten my system into a state where there are no Gnome users with account type "Administrator" all the users are "Standard."
Note: Gnome Administrator is not the same thing as sudo.
I can login fine and I can run sudo successfully from a terminal, but I can not unlock any settings in the Gnome GUI or update/install applications, connect to networks, etc... from the GUI.
I understand that the "normal" way to add a new Administrator is with an an existing Administrator via the GUI. The first user created on the system is an Administrator, but that user has been deleted. So there are no Administrator users.
My understanding is that there is some way to use dconf or gsettings or both to make the current user a user of Account Type "Administrator" but I can't seem to figure out how.