Issue updating schema

Question

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.

Answer 1

Hi Jeffrey,
Do you have any progress at the moment?
If not yet, here are some steps below I suggest you try:
1 Launch LDP.exe and bind to the DS server you want to modify. Make sure you are schema admin, and admin over the partition you are modifying
2. After connecting and binding navigate to the browse menu and select the "Modify" option.
3. Leave the DN blank, type 'schemaUpgradeInProgress' into the Attribute field and in the values field type 1.
4. Click the Add operation and then click the enter button. This will add this command to the entry list.
5. Click the Run button. If you are successful you should see a successful modify message.
6. Go to View -> Tree. Connect to the appropriate base DN. In our case (Schema,CN=Configuration,dc=domain,dc=com").
7. Find the object, right click and select modify (in our case 
"CN=ms-DS-Claim-Is-Value-Space-Restricted,CN=Schema,CN=Configuration").
8. In the attribute field, type "systemOnly"; in the Values field, FALSE; in the operation radio options, select REPLACE.
9. Then click Enter, then click Run.
10. Once finished, run LDP again with the above steps, changing the schemaUpgradeInProgress value to 0 (to prevent unwanted schema/system changes).
Best Regards,
Amy
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