Microsoft KB Archive/147506

= XFOR: Err Msg: The Selected Postoffice is Read Only... =

Article ID: 147506

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 4.0 Standard Edition
 * Microsoft Exchange Server 5.0 Standard Edition
 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q147506



SYMPTOMS
When you run the Microsoft Exchange Server Migration Wizard program to migrate users from a Microsoft Mail postoffice, the following error message may appear:

The selected Postoffice is read only. It must be writable.



CAUSE
The Master.glb file is unavailable. The error will occur if the file is locked or missing.



RESOLUTION
Verify that the file exists and it is not being locked by another process. If the file is locked open, close the file. On a Novell server, you can determine the status of locked files by starting the MONITOR program. Choose the file open/lock activity, and choose VOLUME/DIR/SUBDIR/MASTER.GLB. This will yield a connection number and from connection activity, you can find out who has the file open.

On a Windows NT server, the administrator can determine who has the file locked or open by first selecting the Master.glb file in File Manager on the server, clicking Properties from the File menu, and then clicking the Open By... button. The Network Properties menu should list all processes that have locked or opened the file.

Keywords: kbprb kbusage KB147506

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