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Computer is not a member of the root domain. For security reason, this action must be run in a root domain computer.


Issue: Unable to run ForestPrepare task for Lync Server 2013 deployment.
Error Message: Task execution failed.
Computer is not a member of the root domain. For security reason, this action must be run in a root domain computer.
Actual error:  
Problem Statement:
I had updated Schema and was preparing forest for Lync Server 2013 deployment however receiving above error. Installation Lync on child domain so preparing forest from child domain only however receive above error and not allowing to update forest.
Resolution:
Per requirement want to update forest from Lync server which was member of child domain. Running forest prepare from child domain and getting above errors. When click on error details found that forest preparation must run from root domain only.
Error details: 
I thought to run forest preparation from domain controller however this is quite lengthy work because I have to run Lync setup on DC or root server then run forest prepare. Later remove the setup. All this are lengthy work.
Instead of running forest preparation from DC or Root domain server and do all above lengthy work I can join my Lync Server machine to root domain and run forest preparation and later join machine to child domain.
Here are the simple steps:
1.     Login to your Server which are in child domain.

2.     Go to Server Manager > Local Server > click on domain name and remove the child domain name and keep only root domain name.

3.     Restart Server. Now server is in root domain.

4.     Now start the Lync deployment wizard and run the forest prepare.

5.     See the result.

6.     I was able to prepare forest.   
 
Note: Join your server to child domain to complete Lync Server 2013 installation.

Thank you.

Comments

  1. Hey Man,

    Thanks for the workaround it did solve my issue.

    ReplyDelete

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