Active Directory准备的dcpromo先决条件失败

无法将新的Server 2012 R2服务器升级到现有域上的域控制器。 先决条件检查失败。

Verification of prerequisites for Active Directory preparation failed. Unable to verify whether schema master has completed a replication cycle after last reboot. Exception: Unavailable Critical Extension. Server extended error: 8366. Server extended message: 000020AE: SvcErr: DSID-03210384, problem 5010 (UNAVAIL_EXTENSION), data 8610 . Adprep failed to verify whether schema master has completed a replication cycle after last reboot. [Status/Consequence] The schema is not upgraded. [User Action] Check the log file ADPrep.log in the C:\Windows\debug\adprep\logs\20160222090334-test directory for possible cause of failure. 

AD域服务先决条件检查失败

当前域有一个Server 2008 R2域控制器,域function级别设置为Server 2008 R2。

尝试检索林function级别时遇到错误“从服务器返回的引用”。

从服务器返回引荐

由于旧域控制器不复存在的复制失败而引起的问题。

需要删除孤立的域控制器和域。 我使用了以下指南:

https://support.microsoft.com/en-us/kb/251307

https://www.petri.com/delete_failed_dcs_from_ad

https://support.microsoft.com/en-us/kb/230306