How to recover forgotten root password in Linux.

6.    Now select Kernel parameter entry which is second entry in above boot menu & press “e” to make change & write “s” at the end of the line to boot the system in the single user-mode and press enter. As below:

7.    Now system again comes at the boot selection menu as describe in the step 5 & press b to boot the system finally.
8.     When the system comes at the command prompt change the password for root.