Microsoft KB Archive/255668
Article ID: 255668
Article Last Modified on 3/3/2007
- Microsoft Windows 2000 Server
- Microsoft Windows 2000 Advanced Server
This article was previously published under Q255668
When you are running the Schema Upgrade utility (Schupgr.exe), you may receive the following error message:
This behavior can occur if Kerberos and/or Lightweight Directory Access Protocol (LDAP) resource records are not available when you try to upgrade the schema. The Schema Upgrade tool tries to perform an LDAP bind to Active Directory. This includes passing a location in the directory to which to bind and credentials to be used for the bind process.
To resolve this issue, verify that SRV records are present for both Kerberos and LDAP on your Domain Name System (DNS) server. These records are required for Schupgr.exe to work correctly. If you are using a third-party DNS server, you can use the Netlogon.dns file to import the entries. The file is located in the %SystemRoot%\System32\Config folder.
This behavior is by design.
For additional information, click the article numbers below to view the articles in the Microsoft Knowledge Base:
241515 Verifying the Creation of SRV Records for a Domain Controller
240427 How to Upgrade the Schema to Upgrade Domain Controllers to Released Version of Windows 2000
Additional query words: kbhowto schema upgrade LDAP Active Directory AD DS Service
Keywords: kbenv kberrmsg kbkerberos kbprb kbschema KB255668