vCenter Appliance 6.7 to 7 Upgrade Error: Migra… |VMware Communities

Hello there,


Whilst attempting to upgrade a vCenter 6.7U3 Appliance (, Build number 16708996) to VCSA7 (7.0.0d Build 16749653), two attempts have been unsuccessful, with below error at Upgrade Stage 2 where the VCSA7 appliance has been successfully deployed and migration of configs is to happen next.


Error: Migration Assistant is not running on Update Manager host machine HOSTNAME_FQDN


Update Manager installed on HOSTNAME_FQDN will be upgraded as part of the vCenter Server upgrade process and will be migrated on the new vCenter Server Appliance. Run Migration Assistant on Update Manager host machine HOSTNAME_FQDN, and keep the Migration Assistant window open until the (vCenter Server) migration process completes


Warning: vCenter External Extensions


This vCenter Server has extensions registered that cannot be upgraded to or may not work with the new vCenter Server. Extensions: Virtual Storage Console (by NetApp, Inc.) on https://IP_ADDRESS:8143/vSphereExtensionDescriptor.xml, Virtual Storage Console (by NetApp, Inc.) on https://IP_ADDRESS:8143/webclient_deployment_bundle,



Please ensure extensions are compatible with the new vCenter Server and re-register extensions with the new vCenter Server after upgrade. Please refer to the vSphere documentation on extensions, and the upgrade and interoperability guides.


Upon checking the vCenter Server UI, did note that Update Manager shows “An unexpected error has occurred” and have been unable to resolve this even after deploying a new VCSA6.7U3 and importing a backup. Update Manager Service however is started and restarting the service or appliance has no impact on the error.


After the VCSA Upgrade fails, it leaves the VCSA Management Interface showing “Update installation in progress”, and have to overcome it via the steps in https://kb.vmware.com/s/article/67179


Any suggestions or guidance? Have a Support SR open since last week but responses are too slow and suggested responses haven’t helped yet.

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