Description of problem: On attempt to upgrade from Fedora 21 to 23, "dnf system-upgrade download --releasever=23" reports "cannot install both mozjs17-17.0.0-12.fc23.x86_64 and mozjs17-17.0.0-12.fc21.x86_64" Version-Release number of selected component (if applicable): dnf-plugin-system-upgrade-0.5.0-1.fc21.noarch dnf-0.6.4-7.fc21.noarch How reproducible: Every time Steps to Reproduce: 1. Have a Fedora 21 system with mozjs17-17.0.0-12.fc21.x86_64 AND mozjs17-17.0.0-12.fc21.i686 installed 2. dnf system-upgrade download --releasever=23 Actual results: [root@gigalith ~]# dnf system-upgrade download --releasever=23 [...] cannot install both mozjs17-17.0.0-12.fc23.x86_64 and mozjs17-17.0.0-12.fc21.x86_64 Expected results: Download proceeds as expected Additional info: Not sure if this is a dnf bug or a mozjs bug, or something else. [root@gigalith ~]# rpm -q mozjs17 mozjs17-17.0.0-12.fc21.x86_64 mozjs17-17.0.0-12.fc21.i686 [root@gigalith ~]# rpm -qa | grep dnf python2-dnf-plugin-system-upgrade-0.5.0-1.fc21.noarch dnf-plugin-system-upgrade-0.5.0-1.fc21.noarch dnf-0.6.4-7.fc21.noarch WORKAROUND: Removing the i686 package makes the problem go away (don't know why I have it, it's not required by any other package I have installed, but this is an ancient system that's been incrementally upgraded since F13).
Sorry, not much we can do here. Does it work if you specify add --best --allowerasing?
I'm afraid I can't test it now - I removed mozjs17-17.0.0-12.fc21.i686 manually and the upgrade to F23 then completed OK.
--best --allowerasing does not work. I also had to remove mozjs17-17.0.0-12.fc21.i686 plus additionally kdeplasma-addons
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Fedora 23 changed to end-of-life (EOL) status on 2016-12-20. Fedora 23 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.