降級Windows 2008 R2域控時報錯的解決方法

     最近在客戶現場作Windwos 2008 R2 域升級到Windows 2012 R2域，當降級Windows 2008 R2域控制器時，遇到一個問題，降級沒法繼續，操做失敗緣由爲「目錄服務沒有必需的配置信息，而且不能決定新的浮動單主機操做角色的全部權」，具體錯誤以下圖：

     通過萬能的網絡幫助，終找到解決方法，使用fixfsmo.vbs腳本在服務器上運行如下命令可解決：

cscript fixfsmo.vbs DC = ForestDnsZones，DC = contoso，DC = com

cscript fixfsmo.vbs DC = DomainDnsZones，DC = contoso，DC = com

'-------fixfsmo.vbs------------------

const ADS_NAME_INITTYPE_GC = 3

const ADS_NAME_TYPE_1779 = 1

const ADS_NAME_TYPE_CANONICAL = 2

set inArgs = WScript.Arguments

if (inArgs.Count = 1) then

' Assume the command line argument is the NDNC (in DN form) to use.

NdncDN = inArgs(0)

Else

Wscript.StdOut.Write "usage: cscript fixfsmo.vbs NdncDN"

End if

if (NdncDN <> "") then

' Convert the DN form of the NDNC into DNS dotted form.

Set objTranslator = CreateObject("NameTranslate")

objTranslator.Init ADS_NAME_INITTYPE_GC, ""

objTranslator.Set ADS_NAME_TYPE_1779, NdncDN

strDomainDNS = objTranslator.Get(ADS_NAME_TYPE_CANONICAL)

strDomainDNS = Left(strDomainDNS, len(strDomainDNS)-1)

Wscript.Echo "DNS name: " & strDomainDNS

' Find a domain controller that hosts this NDNC and that is online.

set objRootDSE = GetObject("LDAP://" & strDomainDNS & "/RootDSE")

strDnsHostName = objRootDSE.Get("dnsHostName")

strDsServiceName = objRootDSE.Get("dsServiceName")

Wscript.Echo "Using DC " & strDnsHostName

' Get the current infrastructure fsmo.

strInfraDN = "CN=Infrastructure," & NdncDN

set objInfra = GetObject("LDAP://" & strInfraDN)

Wscript.Echo "infra fsmo is " & objInfra.fsmoroleowner

' If the current fsmo holder is deleted, set the fsmo holder to this domain controller.

if (InStr(objInfra.fsmoroleowner, "\0ADEL:") > 0) then

' Set the fsmo holder to this domain controller.

objInfra.Put "fSMORoleOwner", strDsServiceName

objInfra.SetInfo

' Read the fsmo holder back.

set objInfra = GetObject("LDAP://" & strInfraDN)

Wscript.Echo "infra fsmo changed to:" & objInfra.fsmoroleowner

End if

End if

腳本連接：http://support.microsoft.com/kb/949257/zh-cn