Breaking root password

1. Keep pressing 'esc' during booting.
2. Press 'e' edit.
3. Move Selection to 2nd line.
4. Press 'e' edit
5. Enter ' 1' -->one space 1
6. Press enter
7. Press 'b' boot
8. Now your system is in single user mode
9. Check selinux status  #getenforce
10. Set selinux to 0(zero) i.e. disabled/permissive  #setenforce 0
11. Now change password  #passwd
12. Set selinux to 1, i.e. Enforcing  #setenforce 1
13. Make the changes persistent in #find /etc -name selinux --> /etc/sysconfig/selinux 
14. #vim selinux -->SELINUX=permissive/disabled/enforcing
15. Reboot your system  #init 6