Problems Upgrading Microsoft Team Foundation Server 2005 to 2008 when using Fully Qualified Domain Names (FQDN)

Source: Microsoft Support

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Consider the following scenario:

• You are running Microsoft Team Foundation Server (TFS) 2005.
• You are using a fully qualified domain name for the TFS application tier machine.
• You attempt to upgrade your TFS install from 2005 to 2008.

You may encounter a message similar to the following from the setup program:

"Setup has detected that the specified database server is already in use by another Team Foundation Server (services) computer. Click OK to configure this computer as a stand-by Team Foundation Server (services) computer. Click Cancel to specify a different database server."

This may be caused by the fact that you are using a fully qualified domain name (FQDN) on your TF server.

To work around this issue:

1. Remove the FQDN from your TF server by using the TFSAdminUtil.exe ActivateAt command, passing it the NETBIOS name of the TF server. This will move the TF server back to machine name rather than the FQDN.
2. Upgrade your TF Server to the 2008 version.
3. Re-apply the FQDN using the TFSAdminUtil.exe ActivateAt command again

For more information on the ActivateAt command, please see this web page:

http://msdn.microsoft.com/en-us/library/ms252460(VS.80).aspx (http://msdn.microsoft.com/en-us/library/ms252460(VS.80).aspx)

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