VMware Cloud Director 10.5.x
The underlying cause of this issue is attributed to the /usr/sbin/faillock file, which was introduced in VCD version 10.6 and subsequent releases. Upgrade process failed as it was unable to successfully install this file due to its prior existence on the system.
To resolve this issue, remove file '/usr/sbin/faillock' following the instructions provided below:
Note: Before deleting/modifying any files, Take a snapshot of the VMware Cloud Director appliance
Once the file is removed, perform the upgrade.
For more information about '/usr/sbin/faillock' file, refer step.9. of Resetting root password in VMware Cloud Director