Linux Password Breaking

Here I am providing a trick to break linux os password,
its simple<<

linux
1.During the boot tym press anykey
2. press "e"
3.select 2nd list
4.type e
....quiet"<space> 1"
enter
5.type b
6.In shel prmnt
7.type "passwd"
8.type "new password"
9.type "init 5" for restart

#new username: root