I have an instance of SQL Server 2008 R2 which has been installed off localized (German) media. I need to run an in-place upgrade to SQL Server 2012, but get stuck in a chicken-and-egg problem:
- as the server's MUI is ENU, I cannot run the installer off German SQL Server media ("The SQL Server license agreement cannot be located for the selected edition")
- as the old install's language is German, I cannot run the ENU SQL Server setup (cross-language upgrade is not supported)
How would I resolve this?