** Description changed: + [Impact] + + * Update-manager and unattended-upgrades install many kernel packages during the lifetime of a release but does not remove them automatically leading to those packages filling disk space potentially completely filling /boot and making the system unable to install updates or even boot. + * Stable release users are impacted by this bug for years and their systems already collected many autoremovable unused kernel packages, thus they would benefit from backporting the fix greatly. + * The bug is fixed by removing autoremovable (not currently booted) kernel packages when running unattended-upgrades or update-manager. Update manager offers the kernel removals when there are other updates to be installed. + + [Test Case] + + 1. Install kernel packages to be removed, mark them auto-installed and + run apt's kernel hook script to make apt consider them autoremovable: + + sudo apt install -y linux-image-extra-4.4.0-92-generic linux-image-extra-4.4.0-93-generic + sudo apt-mark auto linux-image-extra-4.4.0-92-generic linux-image-extra-4.4.0-93-generic + sudo /etc/kernel/postinst.d/apt-auto-removal + + 2. Also downgrade a package to be upgraded: + + sudo apt-get install -y ca-certificates=20160104ubuntu1 + + 3. (update-manager). Run update-manager and observe that kernel + packages are offered for removal in Details of updates. + + sudo update-manager + + 4. (update-manager) Click on Install Now and observe that the kernel + packages are removed. + + 3. (unattended-upgrades) Run unattended-upgrades manually and observe + the removal of the autoremovable kernel packages: + + sudo unattended-upgrade -v + + [Regression Potential] + + The change may cause update-manager or unattanded-upgrades to remove + used kernel packages or fail to install other package updates. + + [Other Info] + + The unattended-upgrades fix is uploaded with many other fixes and those may cause regressions in other areas in unattended-upgrades. + + [Original bug text] + When using default settings for unattended-upgrade i.e. Unattended-Upgrade::Remove-Unused-Dependencies "false"; # default "false" Unattended-Upgrade::Remove-New-Unused-Dependencies "true"; # default "true" in configuration file /etc/apt/apt.conf.d/50unattended-upgrades, unattended-upgrade is unable to remove packages that become unused in conjunction with updating by other software such as update-manager or apt full-upgrade. This is because unattended-upgrade compares the list of unneeded packages before and after it upgrades packages to detect which packages are new unused ones. Consequently, if user installs new kernels using e.g. update-manager, the excessive kernels will not be removed by unattended-upgrade, and eventually (small) /boot will become full. Expected behavior: handle removing of unused packages differently at least until other package management software installed by default can handle removing of new unused packages. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: unattended-upgrades 0.90 ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16 Uname: Linux 4.4.0-36-generic i686 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: i386 CurrentDesktop: XFCE Date: Sat Sep 17 11:28:44 2016 InstallationDate: Installed on 2016-09-05 (11 days ago) InstallationMedia: Mythbuntu 16.04.1 LTS "Xenial Xerus" - Release i386 (20160719) PackageArchitecture: all SourcePackage: unattended-upgrades UpgradeStatus: No upgrade log present (probably fresh install)
-- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-software in Ubuntu. https://bugs.launchpad.net/bugs/1624644 Title: By default settings unattended-upgrade does not automatically remove packages that become unused in conjunction with updating by other software To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1624644/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
