Server Manager in Windows Server 2008 can generate errors if the cache of CBS data becomes corrupt.
If the cache of CBS data maintained by Server Manager becomes corrupt, you can get “Role Error” messages when you try and open Server Manager. To try and resolve this problem, close Server Manager and delete the following two files from the %systemroot%\System32\ServerManager\Cache directory:
CbsUpdateInfo.bin
CbsUpdateState.bin
Then restart Server Manager and it should query CBS and determine the install state of the roles on the server and should recreate the two cache files you deleted.
About Mitch Tulloch
Mitch Tulloch was lead author for the Windows Vista Resource Kit from Microsoft Press, which is the book for IT pros who want to deploy, maintain and support Windows Vista in mid- and large-sized network environments. Mitch was also the author of Introducing Windows Server 2008 and technical project lead for the Microsoft Office Communications Server 2007 Resource Kit, both books also from Microsoft Press. For more information on these and other books by Mitch, see www.mtit.com .
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