In S project ,BMU can not connect to the database .
After checking the database, found a alarm "SQL server 2008 R2 evaluation period has expired"
The correct way to upgrade evaluation version to commercial version as below :
Enable the SQL Server Agent service in Windows SCM.
Provision the SQL Server Agent service account by using SQL Server Configuration Manager.
In addition to the steps above, you may need to do the following if you upgraded from SQL Server Express:
Users that were provisioned in SQL Server Express remain provisioned after the upgrade. Specifically, the BUILTIN\Users group remains provisioned. Disable, remove, or reprovision these accounts as needed. For more information, see Configure Windows Service Accounts and Permissions.
Sizes and recovery mode for the tempdb and model system databases remain unchanged after the upgrade. Reconfigure these settings as needed. For more information, see Back Up and Restore of System Databases (SQL Server).
Template databases remain on the computer after the upgrade.