vCenter update failed, stuck in 80%, "Exception occured in postinstallHook" as VCHA service was incorrectly enabled

Products

• VMware vCenter Server

Issue/Introduction

• vCenter update failed, stuck at 80%, "Exception occured in postinstallHook".

• In the update log (Patchrunner.log), the progress of start all services was terminated as failed to start VCHA services.

--/var/log/vmware/applmgmt/Patchrunner.log
Performing start operation on profile: ALL...
, stderr=Service-control failed. Error: Failed to start services in profile ALL. RC=2, stderr=Failed to start vcha services. Error: Service crashed while starting

• But the vCenter was not a VCHA configuration.

# cat /storage/vmware-vmon/defaultStartProfile
 ALL

Environment

VMware vCenter 7.0

Resolution

1.Check  and found the start type of VCHA service was "AUTOMATIC".

# /usr/lib/vmware-vmon/vmon-cli --status vcha
Name: vcha
Starttype: AUTOMATIC
RunState: STOPPED

2.Set the start type of VCHA service to DISABLE or MANUAL as it's not a VCHA configuration.

# /usr/lib/vmware-vmon/vmon-cli --update vcha --starttype DISABLED  

or

# /usr/lib/vmware-vmon/vmon-cli --update vcha --starttype MANUAL

3.Re-attempt to install vCenter patch

Command> software-packages install --staged

Additional Information

The procedure to set start up type could refer:

Setting vCenter server services start up type to Manual/Automatic mode via either Command line or VAMI Page
https://knowledge.broadcom.com/external/article/390401/