This post will deal with recovering or rather changing the authentication/root password of your system . You might often encounter the need to do this . Maybe you’ve simply forgotten your password , maybe someone else installed the OS on your system and left you in dark of the authentication password or maybe you just want to hack into a system . This post is ofcourse aimed at home desktop users .
So the steps involved in changing the root password is actually quite simple .
Step 1 : Drop in to the Root Shell .
Right after your boot begins , i.e after the BIOS screen , you’ll see the Grub screen in multiple OS systems . If you use a single OS system(only Ubuntu) you need to hold down the shift key , this will bring up the Grub menu . Choose advanced options .
Now this will lead you to another screen where you choose the “recovery mode”. Enter the recovery mode .
Now from the recovery menu , choose the root – drop to root shell prompt option .
NOTE : You now have root privileges and please be careful with the commands you use .
Step 2 : Change the mounted filesystem to read/write
In most contemporary versions of Ubuntu the file system is mounted as read-only . Any command to change the password as of now would result in the error-message “Authentication token manipulation error”.
So type in
mount -rw -o remount /
Step 3 : Enter the New Password
Now all you need to do is enter a new password for your root and you are done . You can now have root privileges in your system .
For this you type in
If you are unsure of the username then use the command
This will show your username .
Now type in
(i.e is the output of the “ls /home” command)
Now you’ll be prompted to enter the new password. Enter the new password , confirm it again and you are done .
You have successfully gained root access to a system .
and continue with resume normal boot from the recovery menu.
.Drop in your suggestions/queries if any in the comments section . Hope this was of some help to you.
A Merry Christmas and Happy New Year in advance .