Error during installation Exch 2010 SP1 in Organization Preparation

Posted on 2011-10-24
Last Modified: 2012-05-24
When installing exchange 2010 sp1 on a windows 2008 R2 server is get the following error:

Organization Preparation

The following error was generated when "$error.Clear();
    install-ExchangeSchema -LdapFileName ($roleInstallPath + "Setup\Data\"+$RoleSchemaPrefix + "schema2.ldf")

" was run: "There was an error while running 'ldifde.exe' to import the schema file 'C:\Windows\Temp\ExchangeSetup\Setup\Data\PostExchange2003_schema2.ldf'. The error code is: 8245. More details can be found in the error file: 'C:\Users\sa_itsn\AppData\Local\Temp\2\ldif.err'".

There was an error while running 'ldifde.exe' to import the schema file 'C:\Windows\Temp\ExchangeSetup\Setup\Data\PostExchange2003_schema2.ldf'. The error code is: 8245. More details can be found in the error file: 'C:\Users\sa_itsn\AppData\Local\Temp\2\ldif.err'
Click here for help...

The content of ldiff.err is:

Entry DN: CN=ms-Exch-ELC-Folder-Link,CN=Schema,CN=Configuration,DC=goversacc,DC=local
Add error on entry starting on line 113: Unwilling To Perform

The server side error is: 0x2114 Schema update failed: An attribute with the same link identifier already exists.

The extended server error is:

00002114: SvcErr: DSID-032603BC, problem 5003 (WILL_NOT_PERFORM), data 8468

An error has occurred in the program

The server will be installed in an existing domain with an exchange 2003 server (which will be replaced by this one).
I found this article:, but the error is not exactly the same; I have the error for CN=ms-Exch-ELC-Folder-Link and not for the CNs mentioned in the article.

As far as I understand they just changed the linkid number to 11900 and 11901. Can I also do this for this object?
Question by:ITSN-Venlo
    LVL 26

    Expert Comment

    On my test machines:

    Adsiedit > Schema
    "CN=ms-Exch-ELC-Folder-Link,CN=Schema,CN=Configuration,DC=xxxxxx,DC=com" has got the linkID: 2054

    From the above message, it looks like this object "ms-Exch-ELC-Folder-Link" is conflicting for the linkID
    You can give a try by using one of the reverse linkID for this object

    Author Comment

    What do you mean with a reverse linkID?
    LVL 26

    Expert Comment

    My bad for typo
    This should be used as...reserve linkIDs

    Note The Exchange Server Product Group has reserved linkIDs 11900 and 11901 for Exchange Server. These two linkID values do not conflict with existing or future versions of Exchange Server
    Error message when you prepare an Active Directory forest for Exchange Server 2003: "Extending the schema in Active Directory failed"

    Accepted Solution

    Problem has been solved. I found a german article which exactly described my problem:

    Author Closing Comment

    I found the solution myself.

    Author Comment

    LVL 1

    Expert Comment

    by:Joost Kuin
    I had exactly the same issue and also was able to solve it by replacing those 4 objects in the ldf files as specified in the german support link that you provided. Thanx!

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