Fix issues in upgrading Ubuntu 14.04 to 16.04
When I upgraded my Ubuntu 14.04 PC to 16.04 it restarted and terminal screen was loaded without any GUI. I fixed this by doing following steps. First login with by entering login name(this is your username) and password Run sudo apt-get update If above step fails run the command which is given in the error. Usually this is something related to dpkg. Run sudo apt-get upgrade -f If confirmations occurs while upgrading accept all After upgrading is done restart the computer. If it still goes to terminal run sudo do-release-upgrade