You can use the GUI installer to perform an interactive upgrade of a vCenter Server Appliance 5.5 or 6.0 that uses an embedded vCenter Single Sign-On or Platform Services Controller to vCenter Server Appliance 6.5 with an embedded Platform Services Controller. You must run the GUI upgrade from a Windows, Linux, or Mac machine that is in the same network as the appliance that you want to upgrade.
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About this task
You can deploy version 6.5 of the vCenter Server Appliance and Platform Services Controller appliance on hosts that are running ESXi 5.5 or later and on vCenter Server instances 5.5 or later.