Have installed ubuntu 13.04. While login, i am unable to login using user name and password.
So i am loging in by using guest account.
I need to create the admin account now. can any one help me .
I have also tried sudo su but it says, "Unable to change to sudoers gid :operation not permitted."
I have tried su also but when I enter the password it says, "Authentication failure".
Regards Vijay