I am having an issue extending the forest portion of the schema from Windows 2012 to Windows 2012 R2. The schema seems to be extended but we get a strange error at the end of the process. We cannot extend the domain schema due to this issue.
On the schema master I load the Server 2012 R2 dvd, navigate to the support\adprep folder in DOS and type
Adprep /forestprep.
The command prompt finishes with the following error messages
Adprep encountered an LDAP error.
Error code: 0x13. Server extended error code: 0x20b1, Server error message: 000020B1: AtrErr: DSID-030F112A, #1:
0: 000020B1: DSID-030F112A, problem 1005 (CONSTRAINT_ATT_TYPE), data 0, Att 9086f (msDS-ClaimIsValueSpaceRestricted)
DSID Info:
DSID: 0x181112dd
ldap error = 0x13
NT BUILD: 9600
NT BUILD: 16384
I’ve seen nothing like this on the Internet that has been able to assist me. The the account I'm using is a member of the schema admin, user account control is allowing commands to run as administrator, and we are running this on the SCHEMA MASTER fsmo role holder. I appreciate your comments.