I yum updated last Saturday. It had a new kernel. I hadn't rebooted but saw that firefox update today and did that then rebooted. My system wouldn't boot all the way with the new kernel. I went back to 3.10.0-229.7.2.el7.x86_64 and my system would boot. When I boot with the 3.10.0-229.11.x kernel. I noticed some gnome manager stuff. I thought I had the kde desktop installed for CentOS 7.1. wes