If you've been using GNOME 3.12 and updating packages with
gnome-software, you might have run into an issue with the update process
leaving behind a lot of duplicate packages:
This turned out to be an issue with PackageKit's Fedora packaging. It
had an rpm postun script for restarting the PackageKit daemon after an
update, but if PackageKit itself was driving the update as is the case
with updates done through gnome-software, it interrupted the whole
I've now built fixed packages for both the f20-gnome-3-12 copr and rawhide.
How To Make Everything Work Again
1) Run 'package-cleanup --dupes' -- if you are affected, it prints out a
number of packages. If the command is not installed, install yum-utils
2) Find a good time for the next step. In some cases, it can uninstall
half of your system, so don't run it 5 minutes before you have to give a
3) Run 'package-cleanup --cleandupes'
4) Update to PackageKit-0.9.2-3.fc20 with either yum or dnf:
yum update 'PackageKit*'
dnf update 'PackageKit*'
5) All done, can now resume to using gnome-software and PackageKit updates.
Hope this helps,