Skype for Business In-Place Upgrade failed with "Unsupported version of SQL Server detected"
I came across a problem a customer reported while he tried to upgrade an Lync 2013 Standard Server to Skype for Business Server. The error is: Before this server can be upgraded, the following must be resolved: An unsupported version of SQL Server was detected. The local RTCLOCAL instance should be Microsoft SQL Server 2012 Express Edition SP1 or later. More information on downloading.... The local LYNCLOCAL instance should be Microsoft SQL Server 2012 Express Edition SP1 or later.... First let me remind, that you have to follow this upgrade steps: Install CU5+ latest hotfix to Lync 2013 topology PowerShell RTM version (6.2.9200.0) or later Have at least SQL server 2012 SP1 installed SP1 ( download ), SP2 ( download ) Operating System Hotfixes: KB2533623 Windows Server 2008 R2 KB2858668 Windows Server 2012 KB2982006 Windows Server 2012 R2 Out of the Box, Lync Server 2013 installed the SQL 2012 Express Edition RTM. SOLUTION: Now if you only in