Recovery of a Mirrored SQL Databasehttp://blogs.technet.com/dpmsupport/archive/2009/05/29/recovery-of-a-mirrored-sql-database.aspxRecovering a mirrored database, whether it is to a SQL Server 2005 or SQL Server 2008 installation, requires that the existing mirror be broken. For simplicity, you may want to consider deleting both the Principal and Mirror databases and using the latesten-USCommunityServer 2.1 SP1 (Build: 61025.2)