** Description changed: [Impact] Having libc6:i386 installed, which happens when e.g Steam is installed, can cause an upgrade calculation that removes the desktop environment, despite it being in the removal denylist. [Test Plan] Create a VM running Kubuntu 24.10. Then, install libc6:i386, and try an upgrade. $ dpkg --add-architecture i386 $ apt install libc6:i386 Note that due to the fact that plucky is now released, but upgrades are disabled, we cannot use the --proposed flag to test upgrades conveniently. Instead, we need to manually download the tarball from https://changelogs.ubuntu.com/meta-release-proposed, unpack it, and run the script. $ wget http://archive.ubuntu.com/ubuntu/dists/plucky-proposed/main/dist-upgrader-all/current/plucky.tar.gz $ tar xf plucky.tar.gz $ sudo -E ./plucky --frontend DistUpgradeViewText The upgrade should complete without errors, and the VM should reboot into plucky after the upgrade. [Where problems could occur] - TODO + The patch changes the condition for libc6_possible to be True, which + means that in some cases libc6 might not be upgraded first. This path + has always been possible, but this patch could expand the cases where it + happens. + + If any problems did occur from this, it would most likely be seen in the + calculation step. [Original Description] 1. Using a clean and upgraded install of Kubuntu 24.10, install Valve's Steam from the webesite: https://store.steampowered.com/about/ 2. perform do-release-upgrade 3. Note that the "Searching for software" step will be extremely slow (taking 1 to 1.5 hours in some tests). 4. When the install complete but before rebooting, check the status of the kununtu-desktop package and note that it is not installed. If system is restarted, it will not boot. Installing kubuntu-desktop prior to rebooting will allow proper rebooting. *** additional to original report *** Summary of Bug comments and investigations so far: * The bug as reported is triggered on Kubuntu 24.10 systems where the upstream Valve .deb or Ubuntu archive steam installer/launcher packages have been installed. * It later turns out that this is not specific to the steam packages. It is just that this is likely one of the most common things that users might have installed that triggers the bug. Others might be wine32 etc (to be confirmed, but seems logical) * Steam installs a range of i386 libraries on an amd64 system via some dependency metapackages. * However, to replicate the bug one only has to install the package libc6:i386 on an otherwise pristine Kubuntu 24.10 install. * The bug is triggered when the system is upgraded to 25.04 when the Ubuntu upgrader tool is used. This can be from the command line via 'do-release-upgrade', or invoking that with the commands to launch the GUI installer, or from the system tray upgrade notification dialogue. * The bug does NOT seem to be triggered when a system is upgraded with the old fashioned switching of software sources from oracular to plucky and doing 'sudo apt-get dist-upgrade' or 'sudo apt full-upgrade'. * This seems to be a bug related to the upgrader itself and how it treats/resolves dependencies and implements an upgrade. * To the user the upgrader presents what seems to be a sane and sensible summary of what the upgrade will do. i.e. the number and names of packages to be upgraded, newly installed and removed, look sensible. It does not propose to remove the kubuntu-desktop, or other core plasma desktop packages etc. Just packages that one would expect due to deliberate breaks/replaces on old conflicting versions etc. * It is only when the upgrader performs the upgrade that it diverges without warning from the proposed upgrade, and removes key desktop meta packages and other packages. * Then subsequent clean up of 'obsolete packages' then proposes to remove even more, presumably as the packages that did depend on them were removed in the previous upgrade stage. * As widely commented, later re-installing the kubuntu-desktop meta package should restore what was incorrectly removed via the upgrader. *** end of additional comments *** ProblemType: Bug DistroRelease: Ubuntu 25.04 Package: ubuntu-release-upgrader-core 1:25.04.11 ProcVersionSignature: Ubuntu 6.14.0-13.13-generic 6.14.0 Uname: Linux 6.14.0-13-generic x86_64 ApportVersion: 2.32.0-0ubuntu3 Architecture: amd64 CasperMD5CheckResult: unknown CrashDB: ubuntu CrashReports: 640:1000:110:175125496:2025-03-29 12:39:16.258547358 -0600:2025-03-29 12:38:59.705217907 -0600:/var/crash/_usr_bin_plasmashell.1000.crash 640:1000:110:4231423:2025-03-30 12:15:26.452457354 -0600:2025-03-30 12:15:25.246440280 -0600:/var/crash/_usr_libexec_ibus-ui-gtk3.1000.crash CurrentDesktop: KDE Date: Thu Apr 3 21:06:53 2025 InstallationDate: Installed on 2025-03-29 (5 days ago) InstallationMedia: Kubuntu 25.04 "Plucky Puffin" - Beta amd64 (20250324.1) PackageArchitecture: all SourcePackage: ubuntu-release-upgrader UpgradeStatus: No upgrade log present (probably fresh install)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2106202 Title: Kubuntu 24.10 do-release-upgrade and Steam (or other) dependencies installed produces not booting desktop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/2106202/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
