Apologies for the double-comment. Following the guide from here... https://askubuntu.com/questions/838491/systemd-shim-error-after-upgrading-from-16-04-to-16-10/838673#838673
I was able to continue upgrading with these commands: [let upgrader bail out and run dpkg configure] sudo mv /usr/share/dbus-1/system-services/org.freedesktop.systemd1.service /usr/share/dbus-1/system-services/org.freedesktop.systemd1.service.bak sudo apt-get install -f sudo apt dist-upgrade sudo apt autoremove Then, to optionally finish cleaning up, check what packages are no longer supported using the command from... https://askubuntu.com/questions/691051/how-to-get-the-list-of-the-unsupported-packages-mentioned-during-the-os-upgrade awk -F\' '/demoted/ {gsub(/ /,"\n",$2); print $2}' /var/log/dist- upgrade/main.log The system in question appears to work fine now, just the usual cleanup of changes for any major OS upgrade. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1773859 Title: upgrades to 18.04 fail Status in systemd package in Ubuntu: New Status in systemd-shim package in Ubuntu: Incomplete Status in systemd source package in Bionic: New Status in systemd-shim source package in Bionic: New Bug description: $ sudo apt upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done The following packages will be REMOVED: systemd-shim 0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded. 1 not fully installed or removed. After this operation, 71.7 kB disk space will be freed. Do you want to continue? [Y/n] y (Reading database ... 632222 files and directories currently installed.) Removing systemd-shim (9-1bzr4ubuntu1) ... Removing 'diversion of /usr/share/dbus-1/system-services/org.freedesktop.systemd1.service to /usr/share/dbus-1/system-services/org.freedesktop.systemd1.service.systemd by systemd-shim' dpkg-divert: error: rename involves overwriting '/usr/share/dbus-1/system-services/org.freedesktop.systemd1.service' with different file '/usr/share/dbus-1/system-services/org.freedesktop.systemd1.service.systemd', not allowed dpkg: error processing package systemd-shim (--remove): subprocess installed post-removal script returned error exit status 2 Errors were encountered while processing: systemd-shim E: Sub-process /usr/bin/dpkg returned an error code (1) Commenting out the dpkg-divert in systemd-shim's postrm solved this for me and I was about to continue the upgrade. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1773859/+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