Description of problem: After fresh install of Fedora 20 Alpha TC2 live and reboot, I am unable to upgrade system via yum. After all packages are downloaded, it shows "Package gcr-3.9.90-1.fc20.x86_64.rpm is not signed" and I am unable to continue with system update. How reproducible: Always. Steps to Reproduce: 1. Install Fedora 20 TC2 from Gnome live DVD. 2. Reboot. 3. Try to update system with yum update. Actual results: It won't update, showing "package gcr is not signed". Expected results: It should update without error.
I have tried to use "yum --exclude="gcr"" and it showed that p11-kit is not signed and then PackageKit3 is not signed... it seems that problem is somewhere else.
Yup, see: http://www.spinics.net/lists/fedora-devel/msg188299.html