Today I was busy with a vCenter server upgrade to vCenter 4.1 update 2. Everything went fine except the vCenter Update manager installation. I received the following error:


The solution is pretty simple this time. Just be sure to stop the vCenter Update Manager service before starting the setup. Right after stopping the service, the installation was successful and I was happy again. In the VMware Communities you’ll find that this issue is also know for the upgrade of vCenter 5 to vCenter 5 update 1. See for more info. Now let’s patch some vSphere hosts with the help of PowerCLI: powercli-update-vmhost-function/


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