sort of locked out [duplicate]

Question

Possible Duplicate:
How do I reset a lost administrative password?

I only have the user set up when I installed Ubuntu 12.10. I don't need a password and I want it to log in without prompting for a password.

In User accounts I clicked the unlock padlock (I think I entered the password). I then set the password to none and automatic login to on. I then clicked on the lock padlock.

I thought all was good.

Now when I trying and install software I get the prompt for my password. Neither my old password or nothing works. I cannot sudo anything

In User accounts I cannot click the unlock button so I am locked out of doing any modifications.

my goal is to not need a password. The system does not need to be secure but please assist this newbie.

Thanks

Ron

Answer 1

You can restore a password for your user by restarting in recoverymode.

To start in recoverymode you hold down shift key before grub loads the system. This will show you a menu. The second entry is usually the recovery boot.

Go into a root shell. Not really sure what the actual name is. In the terminal enter this command to set the password.

passwd YourUsersLoginName

You don't need to set an empty password to enable autologin. Configure ligthdm(or the dm you use) to log your user in automatically.