Exchange Server 2016 CU readiness checks error
I have downloaded the latest cumulative update (CU14) for Exchange Server 2016 and while running the setup (elevated) I receive several errors in the readiness checks. These include:
The mailbox server role isn’t installed on this computer
and various others about permissions. I clicked the link provided to get help but the destination page is far from helpful:
Sorry, but we haven’t added content for this Exchange 2013 readiness check yet
Amazing! Well, despite the lack of help from that link I tried various things to fix this. To cut a long story short, I had to move the AD Schema Master role to a domain controller located in the same site as this Exchange server. Once I had done that the checks completed without warning or error and I could install the upgrade.