Recover the root password in AIX

 In this post we will discuss, how to recover the root password in AIX.

1.  Push the NIM resources like lpp_source and SPOT or mksysb and SPOT to the server(Issued server). This oslevel of resources should be equal or above.

2. Take the downtime and boot the server in SMS mode. Once the system is Service Mode and you've booted on the bootable media/ booted using NIM resources,which is of the same version and level as the system, follow the prompts to the Welcome to Base OS menu.

3. Next Choose Start Maintenance Mode for System Recovery (Option 3).

4. The next screen displays prompts for the Maintenance Menu

             Choose Option 1: Acess a Root Volume Group

5. The next screen prints a warning message and asks you to select 0 to continue.
             Select 0 to Continue

6. The next screen asks you to select the proper volume group.
            Select the proper volume group for your machine.

7. The console will display information about rootvg and a menu with two options
                Choose option 1: Access this volume group and start a shell

8. Once you have the command prompt, run the passwd command:

               # passwd
               Changing password for "root"
                root's New password:
                Enter the new password again:
7. With the key in Normal position (if applicable), issue the reboot command: sync;sync;sync;reboot

 

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