Enter superuser mode-problem

[Peter Garrett]

On Wed, 7 Feb 2007 11:30:25 +0530
"Pushparaj Shetty" <prajshetty at gmail.com> wrote:

>  have   problem in Ubuntu. I cannot enter super user mode(in
> spite of  giving correct passwd).
> $su
> password:
> 
> Authentication failed.

Ubuntu uses "sudo" . To get a root shell type

sudo -i
<your password>

Type "exit" or use  ctrl + D to exit the root shell.

See

https://help.ubuntu.com/community/RootSudo

Peter