Sign up ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free.

I get the root privilege when I type sudo.

But when su asks for the Password, which I type in, the terminal says

su: Authentication Failure
share|improve this question

1 Answer 1

up vote 3 down vote accepted

Open Terminal By CTRL+ALT+T and Type :-

sudo passwd

And Re-Enter your password !

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.