===== Root reset password AIX =====
Enter to HMC and run:
<code>
vtmenu
</code>

Select LPAR. Power off LPAR.

HMC -> Action -> Activate -> Advance Settings -> Boot Mode: System Management Services\\
LPAR -> 5.   Select Boot Options -> 1.   Select Install/Boot Device -> 2.   CD/DVD ->  1.   SCSI ->  Select Media Adapter -> Select Device -> 3.   Service Mode Boot ->  1.   Yes\\
1 + Enter to enter system console.\\
3 Start Maintenance Mode for System Recovery\\
1 Access a Root Volume Group\\
Select root vg\\
1) Access this Volume Group and start a shell\\
passwd\\
sync\\
reboot\\