Starting Aria Automation 8.17.x, Photon OS 4 has been introduced and the command to unlock the root account password has been changed.
Aria Automation 8.17.x
Aria Automation 8.18.x
With the change in Photon OS version 3 to version 4, which has been introduced in Aria Automation 8.17.x, command to unlock the root account password has been changed.
Steps to reset the root account password, please refer How do I reset the root password for VMware Aria Automation
Command to unlock the root account password for Aria Automation 8.17.x & 8.18.x which leverages Photon OS 4.0
root@vRA01 [ ~ ]# faillock --user root
Login Failures Latest failure From
root 0
root@vRA01 [ ~ ]# /usr/sbin/faillock --user root --reset
root@vRA01 [ ~ ]#
For Aria Automation version until 8.16.x, which leverages Photon OS 3.0,please find the command below
pam_tally2 --reset --user root