Hello,
I'm experiencing a strange issue with one of the Exchange 2013 mailbox servers running on Windows 2012. When trying to upgrade it to the new CU5, I'm getting the following errors:
Error: The local domain needs to be prepared using Setup /PrepareDomain before server roles can be installed. For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.DomainPrepRequired.aspx Error: The Mailbox server role isn't installed on this computer. For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.UnifiedMessagingRoleNotInstalled.aspx Error: The Mailbox server role isn't installed on this computer. For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.BridgeheadRoleNotInstalled.aspx Error: An unsupported operating system was detected. Exchange Server 2013 Client Access, Mailbox, and Edge Transport server roles support Windows Server 2008 R2 SP1 or later and Windows Server 2012. For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.ValidOSVersion.aspx
In the Exchange organization there are 2 CAS servers, 2 MBX servers.
Memento Mori