Create or hack Ubuntu 'root' account

In ubuntu 'root' account is disabled.'root' is super user
in Ubuntu. It active by these steps also same step can
used for hacking password of existing 'root' account
Login as Administrator
1.Open terminal from 'application' menu then
'accesories' then choose'terminal'
2.Type 'sudo passwd root'(without quatation)
It will ask your password type it(some times)
press enter key
3.then ask to enter new unix password type your
root password&press Enter key
4.retype password&press Enter key
Now logot&login with username as 'root'& password
entered earlier