When you try to Prepare the Forest for lync 2013 you can encountered this issue: Prepare Forest Active Directory settings execution failed on an unrecoverable error
Enable-CSAdForest -Verbose -Confirm:$false -Report « C:\Users\_lteruin\AppData\Local\Temp\Enable-CSAdForest-[2013_12_18][14_40_06].html »
Creating new log file « C:\Users\_lteruin\AppData\Local\Temp\Enable-CSAdForest-cd1c22ff-6c8d-400e-b54b-dc72673873a1.xml ».
Enable the Active Directory forest to host Lync Server 2013 deployments *
Error: Existing universal groups were found in « OU=System Groups,OU=Groups,OU=Marseille,OU=company,DC=company,DC=priv ».
Specify where to create new Lync Server universal groups explicitly at the command line with the GroupDomain parameter.
ForestPrepareTask execution failed on an unrecoverable error.
WARNING: Enable-CSAdForest encountered errors. Consult the log file for a detailed analysis, and ensure all errors (4) and warnings (0) are addressed before continuing.
We can try to use the cmdlet Enable-CsAdForest with this parameters –
GroupDomainController
You can directly do this task with the GUI by specifying the FQDN Domain. This solve the issue.
Laurent TERUIN