Active Directory 準備的 dcpromo 先決條件失敗

無法將新的 Server 2012 R2 伺服器提升為現有域上的域控制器。先決條件檢查失敗。

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.

目前域有一個 Server 2008 R2 域控制器，域功能級別設置為 Server 2008 R2。

嘗試檢索林功能級別時，遇到錯誤“從伺服器返回了引用”。

由於不再存在的舊域控制器的複制失敗而導致的問題。

需要刪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

引用自：https://serverfault.com/questions/758812