Yesterday I upgraded from ubuntu 12.04 LTS to 14.04 using the update manager. Everything went smoothly. But when I restarted my laptop, it went till the login screen and as i entered my password, it prompted an error
Failed to start session
I read in some blogs and even tried to use sudo dpkg-reconfigure -a, but even that failed with some errors. I feel it does not connect to the Internet through my router when I use the recovery mode.
Can someone please help me. I have lot of data in there and don't want to install a fresh copy of ubuntu 14.04. I am using a Dell Studio 1555 laptop with ATI Mobility Radeon 4500 HD graphic card.
I ran the following command
$ sudo dpkg --configure -a
Output: dpkg: error: unable to access dpkg status area: Read-only file system
