After finally working out how to install SQL Server 2008 onto Windows Server 2008 R2 I thought I’d try and take the SQL Server 2008 disk from SBS 2008 Premium and see if I could install that version of SQL Server onto a Windows Server 2008 R2. Of course this is not at all supported by the licensing but I just wanted to see whether it was possible.
Well, the short answer is that it isn’t, as you can see from the above screen shot. During the installation the SQL Server setup detects that the SBS 2008 SQL Server version should only be installed on Windows Server 2008 not Windows Server 2008 R2.
Just in case you ever wanted to know.