I upgraded a local Centos VM from 6.5 to 6.6. After the update, no restart is needed and the desktop works. When I restart, I see the blue startup bar and CentOS 6.6 on the right side of it. When the bar is grey and startup has succeeded, the desktop should appear, but the screen stays at that bar.
I have snapshots and can go back to 6.5, and to the desktop right after upgrading.
How can I get the desktop back?