Unable to add a ESX2.5 Host to vCenter Server 4

[Frankio78]

Hello I just installed a new vSphere environment and since I still own a couple of old ESX 2.5 servers, I'd like to add them to vCenter to speed up migration, but when I try to add them, the vCenter keep asking for a license server. ESX 2.5 machines had no need for a license server so I cannot comply to this request.

What I can do to avoid this problem? I must install a license server? or some upgrade for ESX2.5 servers?

[Troy_Clavell]

I'm not very knowledgeable around ESX 2.5, but if you are going to manage anything other than ESX(i)4 server you will need to configure a license server.

Click on the top toolbar, AdministrationvCenter Server SettingsLicense Server.

Even though you can manage a 2.5 host with vCenter 4.0, you probably have to find anohter means to license it. If that means a license server, you will have to configure one.

http://download3.vmware.com/software/vi/VMware-licenseserver-64192.exe ,

...but the above license server may not work.....

[Frankio78]

I checked the old documents and I'm pretty sure that my ESX 2 licenses only came as serial number, I have no .lic file to add to the License Server...