I have a 2003 domain that I want to upgrade to 2008 and the forestprep worked, but have an error on the domainprep. Below is the information that comes up when I run the adprep command.
Running domainprep ...
Adprep was unable to modify some attributes on object DC=abc,DC=abc,DC=mn,DC=us.
Check the log file ADPrep.log in the C:WINDOWSdebugadpreplogs20100831102253
directory for more information.
Adprep encountered an LDAP error.
Error code: 0x13. Server extended error code: 0x20b5, Server error message: 0000
20B5: AtrErr: DSID-03152392, #1:
0: 000020B5: DSID-03152392, problem 1005 (CONSTRAINT_ATT_TYPE), data 0,
Att 9054f (otherWellKnownObjects)
Adprep was unable to update domain information.
Adprep requires access to existing domain-wide information from the infrastructu
re master in order to complete this operation.
Check the log file, ADPrep.log, in the C:WINDOWSdebugadpreplogs201008311022
53 directory for more information.
This server is the infrastructure master.