Copy the TFS2008 backups to TFS2010 server (e.g. C:\TfsBackups)
Restore all the databases to TFS2010’s instance of SQL 2008
Install Team Foundation Server 2010
After the install has completed the Team Foundation Server Configuration Wizard will open
Select Upgrade | Start Wizard

Click "Next"

Click "List Available Databases"
Select the TfsIntegration database
Check "By checking this box, I confirm that I have a current backup"
Click "Next"

Select "NT AUTHORITY\NETWORK SERVICE" for the System account
Click "Next"

Click "Next"

Click "Next"

Click "Next"

Click "Next"

Specify the TFSService account
Click "Next"

Click "Next"

Click "Next"

Click "Next"

Click "Next"

Click "Configure"

Have coffee (2 hours)

BTW: A good user interface should have a coffee image
[TODO: Martin to create new rule in "Rules to better UI"]
[TODO: Martin to add suggestion to TFS]

Click "Next"

Click "Close"

Click "Close"

Change the DNS entry for tfs.northwind.com to point to TFS2010 on
Internal DNS
External DNS