Last night a window popped up on my version 13.10 desktop asking if I want to upgrade to 14.04. I said yes, since you should keep software up to date and such. The install went smoothly, but now it boots fine, gives me the user list, and boots to a blank desktop no matter what user I select.
There is no response to left or right clicking. Pressing <ctrl><alt><F1> gives me a prompt:
Ubuntu 14.04 LTS Media tty1
Media Login:
There are a bunch of entries that talk about using <ctrl><alt><F1> to get a terminal prompt. I can not get to a prompt. <ctrl><alt><T> does nothing. I really do not want to go to the trouble of re-copying all my media files, and re-installing and re-configuring Plex.
Is there any way to fix this? If not, is there a way to revert to 13.10 or re-install 14.04 without destroying all my data and configuration?