Description of problem: dnf system upgrade from Fedora 27 to Fedora 28 fails if nss-pem-1.0.3-6.fc27.i686 is installed. Message is "nss-pem-1.0.3-6.fc27.x86_64 does not belong to a distupgrade repository" and "problem with installed package nss-pem-1.0.3-6.fc27.i686" Version-Release number of selected component (if applicable): 2.1.5-4.fc27 [dnf-plugins-core.noarch] How reproducible: every time (from what I can tell from a Web search) Steps to Reproduce: 1. Install nss-pem-1.0.3-6.fc27.i686 on a Fedora 27 installation 2. dnf system-upgrade download --refresh --releasever=28 Actual results: Error message Expected results: Upgraded packages/operating system
Workaround: dnf install nss-pem-1.0.3-9.fc28 --releasever=28 then retry the upgrade
We believe that the problem is in packaging of nss-pem.
Nope. This is a known bug of dnf with known workaround. *** This bug has been marked as a duplicate of bug 1566070 ***