I believe this is a regression from https://bugs.launchpad.net/ubuntu/+source/python3.10/+bug/1990586 which I know sounds hilarious because it was fixing another issue like this but here is what I believe happened:
- mutter and gnome-shell were released on the same day - gnome-shell was eligible to be upgraded on the machine, mutter was still phasing - with the change, we marked mutter for keep back - the upgrade resolution ran, it was not able to upgrade gnome-shell anymore because it depends on the new mutter. Before fixing the other bug, phasing had no effect on the resolution of the upgrade, and then we reverted the upgrade paths depending on the phasing, which resulted in no removals due to phasing. But the upgrade problems became to complex, breaking the solver. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/2025462 Title: Apt deletes ubuntu-desktop during dist-upgrade Status in apt package in Ubuntu: Incomplete Bug description: This morning I got surprised by my laptop booting to a tty instead of a desktop environment. It turned out that the entire desktop environment was no longer present on my machine. Doing an apt install ubuntu-desktop-minimal resolved the issue. The machine had been running for a while. Looking at the apt logs, it looks like apt deleted ubuntu-desktop on its own during a dist-upgrade a couple of weeks back. Start-Date: 2023-06-08 14:20:46 Commandline: apt dist-upgrade Requested-By: alex (1000) Upgrade: gnome-shell-common:amd64 (44.0-2ubuntu3, 44.1-0ubuntu1) Remove: gnome-shell:amd64 (44.0-2ubuntu3), ubuntu-desktop:amd64 (1.501), gdm3:amd64 (44.0-1ubuntu1), gnome-shell-extension-desktop-icons-ng:amd64 (46+really47.0.2-3), gnome-shell-extension-appindicator:amd64 (53-1), ubuntu-session:amd64 (44.0-1ubuntu1), gnome-shell-extension-manager:amd64 (0.4.0-1), gnome-shell-extension-ubuntu-dock:amd64 (79ubuntu2.23.04.1), ubuntu-desktop-minimal:amd64 (1.501) End-Date: 2023-06-08 14:20:48 I'm using the following version of Ubuntu: Distributor ID: Ubuntu Description: Ubuntu 23.04 Release: 23.04 Codename: lunar To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/2025462/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp