In the new installer for vCenter 6.5, you get one option for migrating vCenter Server for Windows instance to a vCenter Server Appliance instance as shown in image below.
You can migrate a vCenter Server version 5.5 or version 6.0 instance on Windows to a vCenter Server Appliance 6.5 deployment on a Linux-based OS (OS name is Photon 1.0).
The vCenter Server migration paths demonstrate supported migration outcomes.
 |
| Image:VMware |
You can migrate a vCenter Server instance with an embedded vCenter Single Sign-On (version 5.5) to a vCenter Server Appliance 6.5 instance with an embedded Platform Services Controller appliance. In this case the software migrates the vCenter Server instance and the embedded vCenter Single Sign-On instance at the same time.
vCenter Server 6.0.x with Embedded Platform Services Controller Installation Before and After Migration
 |
| Image:VMware |
You can migrate a vCenter Server instance with an embedded Platform Services Controller(version 6.0) to a vCenter Server Appliance 6.5 instance with an embedded Platform Services Controller appliance. In this case the software migrates the vCenter Server instance and the embedded Platform Services Controller instance at the same time.
 |
| Image: VMware |
You can migrate a vCenter Server instance with an external vCenter Single Sign-On (version 5.5) to a vCenter Server Appliance 6.5 instance with an external Platform Services Controller appliance. In this case you must first migrate the external vCenter Single Sign-On instance and then the vCenter Server instance.
vCenter Server 6.0.x with External Platform Services Controller Installation Before and After Migration
 |
| Image: VMware |
You can migrate a vCenter Server instance with an external Platform Services Controller(version 6.0) to a vCenter Server Appliance 6.5 instance with an external Platform Services Controller appliance. In this case you must first migrate the external Platform Services Controller instance and then the vCenter Server instance.
Virtual Maestro 
Leave a comment