adprep /forestprep fails from W2K3 R2 CD 2

Hello,

We have a Small Business Server 2000 (DC and holds all FSMO roles) and a
W2K3 peer DC. (Adprep already run when that DC was installed.) I want to
promote a new W2K3 R2 server to DC. First I made the common mistake of using
CD1. When I learned about CD 2, I re-ran the command adprep /forestprep on
the SBS box that has all roles. Following a windows help document I ran the
command while the SBS was disconnected from the network. It failed. After a
few success messages, the end of the adprep.log says:

Adprep was unable to upgrade the schema on the schema master.

[Status/Consequence]

The schema will not be restored to its original state.

[User Action]

Check the Ldif.err log file in the
C:\WINNT\system32\debug\adprep\logs\20061018095401 directory for detailed
information.

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.

[Status/Consequence]
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, in the
C:\WINNT\system32\debug\adprep\logs\20061018095401 directory for more
information.

ldif.err says:

Entry DN: (null)
change: modify
Attribute 0) schemaUpdateNow:1

Add error on line 1276: Operations Error
The server side error is "The schema is not loaded."
An error has occurred in the program

ldif.log has numerous (81) success messages. The end of it says:

81:
CN=ms-DS-Source-Object-DN,CN=Schema,CN=Configuration,DC=hungermountain,DC=com
Entry DN:
CN=ms-DS-Source-Object-DN,CN=Schema,CN=Configuration,DC=hungermountain,DC=com
Entry modified successfully.


82: (null)
Entry DN: (null)
change: modify
Attribute 0) schemaUpdateNow:1

Add error on line 1276: Operations Error
The server side error is "The schema is not loaded."
81 entries modified successfully.
An error has occurred in the program

Although the help doc says to restore the schema master from backup if there
are significant problems, I did not do that. (We do have a full backup from
last night.) I reconnected the server to the network and ran dcdiag on both
the SBS and the W2K3 DCs. Scary messages about the schema being out of sync
and replication of the schema not occurring. However after an hour or so
these cleaned themselves up and DCDiag on both machines now passes all dcdiag
tests. But the registry key still reports version 30.

Any suggestions? I saw the question about whether or not the adprep can be
run with users connected (that implies that the server is still on the
network), and I saw other Microsoft instructions that do not mention
disconnecting from the network (917385 for example). Is it possible that the
DC NEEDS to be connected to run forestprep??? Should it be disconnected or
not?

I am confused by the message: "Adprep requires access to existing
forest-wide information from the schema master in order to complete this
operation." The SBS where adprep was run IS the schema master.

I have not yet run adprep /domainprep from the R2 CD because of the failed
/forestprep. I saw another message that even though the key still said 30,
the dcpromo of an R2 machine succeeded. Should I try adprep /domainprep and
promoting the new machine again? Rerun /forestprep connected to the network?

Are there SBS 2000 and W2K3 R2 issues I'm not aware of (seems unlikely)?

Any advice greatly appreciated.

Thank you.

Ravi
.

Relevant Pages

  • Re: adprep /forestprep fails from W2K3 R2 CD 2
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