Exchange 2016: „Setup encountered a problem while validating the state of Active Directory: Couldn’t find the Enterprise Organization container.“

Problem

Das Setup von Exchange 2013/2016 brit untätig mit dieser Fehlermeldung ab:

Setup encountered a problem while validating the state of Active Directory:
Couldn't find the Enterprise Organization container

Das Exchange Setup Logfile (C:\ExchangeSetupLogs\ExchangeSetup.log) liefert ähnlich genau Details:

[11/08/2016 05:36:10.0207] [1] Failed [Rule:AdInitErrorRule] [Message:Setup encountered a problem while validating the state of Active Directory: Couldn’t find the Enterprise Organization container. See the Exchange setup log for more information on this error.]
[11/08/2016 05:36:10.0223] [1] [RECOMENDED] Setup will prepare the organization for Exchange 2013 by using ‘Setup /PrepareAD’. No Exchange 2007 server roles have been detected in this topology. After this operation, you will not be able to install any Exchange 2007 servers.
[11/08/2016 05:36:10.0223] [1] [RECOMENDED] Setup will prepare the organization for Exchange 2013 by using ‘Setup /PrepareAD’. No Exchange 2010 server roles have been detected in this topology. After this operation, you will not be able to install any Exchange 2010 servers.
[11/08/2016 05:36:10.0223] [1] [REQUIRED] Setup encountered a problem while validating the state of Active Directory: Couldn’t find the Enterprise Organization container. See the Exchange setup log for more information on this error.
[11/08/2016 05:36:10.0223] [1] Help URL: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.AdInitErrorRule.aspx
[11/08/2016 05:36:10.0238] [1] Ending processing test-SetupPrerequisites

Lösung

In dieser Domäne wurde ein Exchange 2007 oder Exchange 2010 Server deinstalliert. Im letzten Schritt entfernt das Exchange Setup nämlich die „Erste Organisation“ aus dem ActiveDirectory, aber hinterlässt die Microsoft Exchange System Objects. Das verwirrt das 2013’er Setup. Vermutlich wurde dieser Fall bei Microsoft nicht getestet (wer will auch Exchange deinstallieren?).

Das Setup von Exchange 2007 (SP3+) oder Exchange 2010 einfach nochmal aufrufen:

C:\THINGS\ex2007> setup /preparead /on:"<ORGANISATIONSNAME>"

Die Installation ist nicht notwenig, nur das PrepareAD. Das Setup baut die entsprechenden Contain wieder ein und das Exchange 2013/2016 Setuo läuft problemlos durch.