Adprep fail

May 17, 2008
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i am trying to upgrade win server 2000 to server 2003 R2 adprep failed with the following error
i would appreciate any help.

Adprep was unable to complete because the call back function (null) failed.


Error message: Could not find path LDAP://,CN=412,CN=DisplaySpecifiers,CN=Configuration,DC=jed,DC=dtt-sa,DC=com (extraColumns). (0x80004005).

Adprep set the value of registry key System\CurrentControlSet\Services\NTDS\Parameters\Schema Update Allowed to 1

Adprep was unable to update forest-wide information.


Adprep requires access to existing forest-wide information from the schema master in order to complete this operation
[User Action]

Check the log file Adprep.log

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