I am trying to upgrade my Fedora 27 (using dnf) to Fedora 28, but the last month I keep got that message error:

sudo dnf system-upgrade download --releasever=28
Before you continue ensure that your system is fully upgraded by running "dnf --refresh upgrade". Do you want to continue [y/N]: y
RPM Fusion for Fedora 28 - Nonfree - Updates    417 kB/s |  96 kB     00:00    
Last metadata expiration check: 0:00:00 ago on Sat 17 Nov 2018 09:12:47 AM EET.
 Problem: nss-pem-1.0.3-6.fc27.i686 has inferior architecture
  - nss-pem-1.0.3-6.fc27.x86_64 does not belong to a distupgrade repository
  - problem with installed package nss-pem-1.0.3-6.fc27.i686

Does anybody know how to fix that? I was not able to find any info about that ticket and how to resolve it.

  • What is the output of rpm -q --whatrequires nss-pem? – Robin Green Nov 17 '18 at 9:38
  • Apparently this: rpm -q --whatrequires nss-pem no package requires nss-pem – Ilian Zapryanov Nov 17 '18 at 9:58

For anyone that expressed that bug here is a topic I've found:

The workaround for this bug is

1.) sudo dnf install nss-pem-1.0.3-9.fc28 --releasever=28

2.) sudo dnf system-upgrade --releasever=28 download

This bug was already reported at https://steamcommunity.com/app/221410...

I used this workaround and it worked :-)

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