Exchange cumulative update installation failed at 99%
Posted on 2016-09-15
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.