Adding server 2012 R2 as a DC and got an error"One or more prerequisites failed. Please fix these issues and click "Rerun prerequisites check""
Trying to add this 2012 R2 server as a DC into a 2003 domain, and got an error "One or more prerequisites failed. Please fix these issues and click "Rerun prerequisites check""
When I clicked "Rerun prerequisites check", it just appeared the same result again and again. I hope there is a log to know what prerequisite is not right. Where to find the log? Please help.
Active DirectoryWindows Server 2012Microsoft Server OS
Last Comment
ahmed ali
8/22/2022 - Mon
RantCan
If your domain functional level is 2003, you first need to raise it to 2008.
As stated if your domain is 2003 then you also need to raise the forest to 2003 as well. At this point you will be able to promote your 2012 R2 server as a DC.
I have a similar issue. I tried to upgrade from windows 7 to windows server 2012. I get a message that upgrading is not possible from windows 7 so, I select the other option. After installing the windows server 2012, and the AD DS , I tried to promote it to domain controller but I receive the same message.
https://technet.microsoft.com/en-us/library/understanding-active-directory-functional-levels%28v=ws.10%29.aspx?f=255&MSPPError=-2147217396
Otherwise, please dig into the logs which will enumerate what is failing. Here is a workflow from technet regarding your situation.
https://technet.microsoft.com/en-us/library/jj592690.aspx