By default root is locked on Ubuntu for several reasons and sudo
is prefered instead or gksudo
for applications with a GUI.
It can be enabled but I would not recommend it. If you really want to enable root see here but read all the answers first.
Open a terminal CTRL+ALT+T and enter
sudo -i
and enter your password. Inside that terminal you are now root. When you have finished type exit
or just close the terminal and you are back to being you.
Also even as root /etc/sudoers
wont do anything useful its a text file.
If you want to see what is in this file try:
sudo cat /etc/sudoers
And if you want to edit it
sudo visudo
In either case you will be asked for a password. This is your login password. When you type there is nothing displayed but it is being accepted just type it and press enter.
/etc/sudoers
is a text file, not an executable. – Mechanical snail May 31 '13 at 09:45/etc/sudoers
will not result in this:After three strikes says "three incorrect attempts".
. Please post actual command used. – saji89 May 31 '13 at 09:52