I happened to add a bit of debug and found it blocking in pkg.mark_delete()
With the attached debugging I get: [...] DEBUG:root:process pkg.name linux-cloud-tools-4.15.0-32-lowlatency:i386 DEBUG:root:process pkg.name linux-cloud-tools-4.15.0-32:i386 DEBUG:root:process pkg.name linux-cloud-tools-4.15.0-33 DEBUG:root:append kernel_autoremove_pkgs linux-cloud-tools-4.15.0-33 DEBUG:root:mark delete linux-cloud-tools-4.15.0-33 It never leaves that, I'll take a look if/why it is hanging there. ** Patch added: "simple diff to debug UpdateManager/Core/UpdateList.py where it stuck" https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1797324/+attachment/5199873/+files/debug-Core-UpdateList.py.diff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1797324 Title: Software Updater is empty, but shows MB to be downloaded To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1797324/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs