Adprep /forestprep

Tech Tip: Click here to run a free scan for Windows Errors and optimize PC performance

I am trying to upgrade our domain from 2000 to 2003. I would like to add a
2003 server as a DC so I need to run adprep from the R2 CD2 and when I do I
get an error. I try to delete the object in question and it fails and says
"Operatin could not be performed." I also could not modify the OID becuase
it owned by the system. I have taken ownership of the object and I still get
the message. Below is the message I recieve when I do the adprep /forestprep:

OID "2.5.4.45" defined for object CN=OS
10,CN=Schema,CN=Configuration,DC=elanco,
DC=k12,DC=pa,DC=us conflicts with the schema extensions needed for Windows
2003.

[Status/Consequence]
Adprep will not extend your existing schema.
[User Action]
Contact the vendor of the application that extended the schema with the OID
valu
e "2.5.4.45" and resolve this inconsistency. Then run adprep again.

Thanks
.

Relevant Pages

  • upgrade a Windows 2003 DC to R2
    ... I am trying to upgrade a Windows 2003 DC to R2 and I am getting this error ... when doing adprep forestprep. ... "attributeId" attribute value for objects defined in Windows 2000 schema ... Adprep cannot extend your existing schema ...
    (microsoft.public.windows.server.active_directory)
  • Re: Upgrading Windows 2003 Server SP1 to R2
    ... Before running adprep, all Windows 2000 domain controllers in the forest ... If ALL your existing Windows 2000 domain controllers meet this requirement, ... extended schema do not ... Adprep cannot extend your existing schema ...
    (microsoft.public.windows.server.active_directory)
  • Re: upgrade a Windows 2003 DC to R2
    ... >> when doing adprep forestprep. ... >> A previous schema extension has defined the attribute value as ... >> Adprep cannot extend your existing schema ...
    (microsoft.public.windows.server.active_directory)
  • Re: upgrade a Windows 2003 DC to R2
    ... My mistake because I saw the warning "all Windows 2000 domain ... >>> when doing adprep forestprep. ... >>> A previous schema extension has defined the attribute value as ... >>> Adprep cannot extend your existing schema ...
    (microsoft.public.windows.server.active_directory)
  • Re: Upgrading Windows 2003 Server SP1 to R2
    ... >> ADPREP WARNING: ... >> A previous schema extension has defined the attribute value as ... >> Adprep cannot extend your existing schema ...
    (microsoft.public.windows.server.active_directory)