Has anyone tried to install CU7 on a server running CU6? I just keep getting an error. The install process seems to disable the Exchange services and then errors out because it cannot start the MS Exchange Service Host service. I'm running Exchange 2013 CU6 on Windows Server 2012 R2 in a two-node DAG.
I was able to force the installation to work by running...
Get-Service | where-object {$_.DisplayName -like "Microsoft Exchange*"} | Set-Service -StartupType Manual
each time the setup changed to a different step.
The install seem to work fine on my second DAG node.