Hacking Linux Password

When you want to log on to a linux machine and you dont know any password then here is a way to do it At the login prompt just reboot the systemWhen a blue sort of screen comes in which there is the name of your operating system writtenThis is called the grub screen just press 'e' you will get a new list go second item of the list and just press 'e' now some text will be displayed remove all the rubbish written in front of '/' and just type single there and then press the escape key and then press 'b' then another prompt will apeartype passwd thereit will ask for new password now just give and after that type exit at the terminal you are done