![]() ![]() It may also be related to the display being used. I've seen some systems (VMs in particular) that don't display anything unless it's been toggled. If during upgrade you see only a black screen while the upgrades are being performed, pressing a function key like F4 will toggle between the console and Plymouth theme. The upgrade process will bail on its own if it could not automatically repair packages, so if it has not rebooted then it is busy installing or repairing some packages that failed. Doing so will result in a broken system that cannot be repaired. While packages are being upgraded, do not manually restart the system under any circumstances. And if you do happen to run that, don't stop the process because doing so will make the system unbootable. Do not run apt at this point because the package lists are pointing to Jammy and doing so will commence an online upgrade which will have a high risk of failure. The update dialog will automatically reboot the system on clicking the reboot button in the dialog. Flatpak applications will continue to work normally as before because they do not rely on system libraries.Īfter packages have been fetched, you are asked to reboot the system if the update was done from a terminal. ![]() ![]() You should also expect that any third party software installed from a PPA likely isn't going to work in 22.04 without being reinstalled for 22.04. The Pipewire PPA is one such PPA that's caused some headaches for some. If you have any PPAs that replaced core OS components, you should purge them from the system and downgrade back to system default packages. Before upgrading, back up any data you need in case of a failure to upgrade. ![]()
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