VAMI console not accessible due to error " Failed to perform cleanup" after vCenter server update to 8.0 U3

Products

• VMware vCenter Server

Issue/Introduction

vCenter server update was successful however, the VAMI console shows error: 

Installation Failed 

Failed to perform cleanup 

Environment

VMware vCenter server 8.x

Cause

• The cleanup task failed for the vCenter server after update.
• File /etc/applmgmt/appliance/software_update_state.conf contains "state": "INSTALL_FAILED"

Resolution

• SSH to vCenter server as root.
• Create a backup copy of the file /etc/applmgmt/appliance/software_update_state.conf to a different location:
  • cp /etc/applmgmt/appliance/software_update_state.conf /storage/core/software_update_state.conf
• Stop the VAMI service:
  • service-control --stop applmgmt
• Remove the software_update_state.conf file:
  • rm -i /etc/applmgmt/appliance/software_update_state.conf
• Start the VAMI service:
  • service-control --start applmgmt
• VAMI console will be accessible after the service restart.

Additional Information

Related KB: Accessing the VAMI returns error: "Update installation in progress" after recovering from a failed vCenter update or vCenter version upgrade