Created attachment 1469691 [details] dnf.log output file Description of problem: When attempting to do a package manager upgrade from F27 to F28, an unexpected bug occurs. Version-Release number of selected component (if applicable): dnf-2.7.5-2.fc27.noarch dnf-conf-2.7.5-2.fc27.noarch dnf-plugins-core-2.1.5-4.fc27.noarch dnf-yum-2.7.5-2.fc27.noarch libdnf-0.11.1-1.fc27.x86_64 python2-dnf-2.7.5-2.fc27.noarch python3-dnf-2.7.5-2.fc27.noarch python3-dnf-plugins-core-2.1.5-4.fc27.noarch python3-dnf-plugins-extras-common-2.0.5-1.fc27.noarch python3-dnf-plugin-system-upgrade-2.0.5-1.fc27.noarch How reproducible: Every attempt on two different computers has failed. One desktop, one laptop. Desktop is BIOS, laptop is UEFI. Both running F27. Steps to Reproduce (On system with F27 installed): 1. dnf --refresh update (successful) 2. reboot (successful) 3. dnf install dnf-plugin-system-upgrade (successful) 4. dnf system-upgrade download --releasever=28 (fails) Actual results: (root)~-> dnf system-upgrade download --releasever=28 --allowerasing -v Failed loading plugin: system_upgrade Loaded plugins: builddep, config-manager, copr, debug, debuginfo-install, download, generate_completion_cache, needs-restarting, playground, repoclosure, repograph, repomanage, reposync DNF version: 2.7.5 cachedir: /var/cache/dnf No such command: system-upgrade. Please use /usr/bin/dnf --help It could be a DNF plugin command, try: "dnf install 'dnf-command(system-upgrade)'" Expected results: F28 packages downloaded, system prepared for upgrade reboot. Additional info: dnf.log file also attached
Workaround found. Manually running "pip3 install systemd --upgrade" fixed the issue.
It looks lite that the problem was in import of systemd. I believe that we cannot do much here. Thank you very much for an investigation and provided solution.