Can any body help me how to upgrade Ubuntu Server 12.04 LTS to Ubuntu Server 13.10 without any data or installed application failures. I tried to boot the Server using Ubuntu 13.10 USB Stick, during the installation process i have seen asking host name and ip address so i came out in the middle thinking that it will completely formate and reinstalls wiping all.
I was upgrading 13.04 to 13.10.And suddenly it hanged and upper part of the screen went black.
So I stopped the upgradation and unfortunately I forcefully shutdown.But its already upgraded to 13.10(I feel upgradation is not complete though)
The desktop flickers now and sometimes the screen turns black.
Sound stopped.No sound output detected in sound settings.And the shutdown button also