Hello everyone

When trying to remove a forest dc had the following error

"The operation failed because:

Active Directory Domain Services could not transfer the remaining data in directory partition DC=ForestDnsZones,DC=Domain,DC=Local to Active Directory Domain Controller \\Server03.Domain.local

"The directory service is missing mandatory configuration information, and is unable to determine the ownership of floating single-master operation roles".

I ran the netdom query fsmo command on the server, and here is the output

C:\Windows\system32>netdom query fsmo
Schema master               Server03.domain.local
Domain naming master        Server03.domain.local
PDC                         Server03.domain.local
RID pool manager            Server03.domain.local
Infrastructure master       Server03.domain.local
The command completed successfully.

When a run the command dsquery * CN=Infrastructure,DC=ForestDnsZones,DC=domain,DC=local -attr fSMORoleOwner

i have this output

  fSMORoleOwner

  CN=NTDS Settings\0ADEL:f618fad9-1438-4e7b-aa18-c7d7eca7b7d1,CN=SRVDC01\0ADEL:1
40cb1c4-78be-4f15-a596-fa12395ebf42,CN=Servers,CN=Default-First-Site-Name,CN=Sit
es,CN=Configuration,DC=domain,DC=local

The server CN=SRVDC01 It does not exist in the structure

and through the ADSIEDIT can not find the CN = Infrastructure field

Can anyone help me?

Thanks

• Edited by Bruno.Jeronimo Friday, July 17, 2015 11:05 AM

Have you tried dcpromo /forceremoval?
Will.

• Edited by Will Szymkowski- Friday, July 17, 2015 10:18 AM

Hi Bruno,

Please perform metadata cleanup. Also ensure there are no DNS records for SRVDC01.

https://technet.microsoft.com/en-us/library/cc816907%28v=ws.10%29.aspx?f=255&MSPPError=-2147217396#bkmk_graphical

-Umesh.S.K

• Edited by Umesh S K Friday, July 17, 2015 11:00 AM

Hi,

You have to use the script mentioned in link :https://support.microsoft.com/en-in/kb/949257

cscript fixfsmo.vbs dc=forestdnszones,dc=domain,dc=com

Followed by:

cscript fixfsmo.vbs dc=domaindnszones,dc=domain,dc=com

After running the above 2 commands,  Then run dcpromo to remove AD successfully