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Exchange cumulative update installation failed at 99%

This is using MS Exchange Server 2013. My co-worker tried to install the cumulative update 11 (CU11). At first, he prepare schema, prepare ad, and then domain. He typed "setup /m:upgrade /iacceptexchangeserverlicenseterms" for the upgrade. However, the installation halted at 99%, and then whole system hung. He saw sort of error like - cannot form the trustrelationship with ad domain. After the system rebooting, Exchange is not working. There is one or two essential exchange services stopped, and attempt to re-start them failed.

What's went wrong, and how to solve the problem?

Appreciate for any help.

Akhater

can u open the event log and give us most relevant errors please ?
also please run nltest /sc_query:domainname from your exchange server to test the AD trust between the exchange and AD

Todd Nelson

Check the Exchange setup logs.

Did you attempt to re-run the setup? Also, you will want to make certain you apply updates that are supported by Microsoft. For Exchange 2013, only CU12 and CU13 are supported; and oddly enough CU4 ("SP1").

https://oddytee.wordpress.com/2014/08/27/exchange-2013-product-version-numbers/

MichaelBalack

ASKER

Hi akhater and Todd,

My co-worker has to be onsite to check the setup file.

Will it be better if we install the CU12 or 13?

ASKER CERTIFIED SOLUTION

Todd Nelson

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Akhater

Did you run the nltest command? If the error was related to a trust relationship that's where we should start. At least for me

Todd Nelson