I'm running ubuntu 14.04 on a virtual box within a windows 8 host machine. I've had the misfortune of stumbling upon the dreaded ubuntu 14.04 login loop after a
sudo apt-get upgrade command, and have tried all suggestions (checking .Xauthority, reinstalling lightdm, installing alternative desktop programs, etc...) and the only approach that has actually worked was to add a new user (with superuser privileges). Unfortunately, this only works once... After I reboot the computer, the login loop resumes and the newly created user no longer allows me to login successfully. Everytime I reboot, I need to add a new user with superuser privileges in order to login successfully.
So, I have two questions:
- Why does adding a new user work at all (even if only once)? What exactly is it temporarily fixing.
- The fact that the login loop resumes after reboot on the newly created user is a symptom of a deeper problem, imho. What exactly is the deeper problem and how can I fix it?