How do I reset a lost administrative password?
I am running Ubuntu 12.10 and have removed the password on my account. When I need to Authenticate, the system doesn't accept a blank box. How do I authenticate then?
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Open a terminal (CTRL+ALT+T) and run this command
Set a new password and it should be fine.
You cannot "work" in Ubuntu without a password. You can autologin if you want , but no password at all , no.