OK, so what's going on is that ubuntu-release-upgrader-gtk is not installed, and apt only updates phasing to upgrades, but not new installs. Which fails in this case. Presumably it needs to apply phasing to all packages in a source package if one of them is installed, but that might be slow :(
OK, so what's going on is that ubuntu- release- upgrader- gtk is not installed, and apt only updates phasing to upgrades, but not new installs. Which fails in this case. Presumably it needs to apply phasing to all packages in a source package if one of them is installed, but that might be slow :(