I am trying to upgrade my active directory scheme from a windows 2003 version to support a windows 2008 R2 server.
When I run adprep /domainprep, I receive the following error:
Adprep encountered an LDAP error.
Error code: 0x20. Server extended error code: 0x208d, Server error message: 0000
208D: NameErr: DSID-031001CD, problem 2001 (NO_OBJECT), data 0, best match of:
From what little I can tell about the error, Ldap is looking for a domain controller (or record) that does not exist. The domain controller in question (GCS) was forcibly removed from the domain after a catastrophic failure of the host. The "metadata cleanup" procedures were used to remove this domain controller from the domain.
My Guess is that the bad domain controller has not been completely removed from the domain. How do I cleanup / repair the domain so that the adprep command will run successfully?