We have a pretty basic SQL 2005 server and last night I attempted to upgrade to SQL 2012. I went through all the checklists and did everything it said. I then started the upgrade and everything seemed to go real well. One thing I noticed is that it never asked me which Instance I wanted to upgrade in the beginning but ran through a bunch of things as if it was doing the upgrade. When all was said and done at the end if mentioned something about needing to reboot so I did. I figured the upgrade went fine but when I brought the server back up and logged in I saw no sign of SQL 2012 and only my SQL 2005 was there and I could still get into it. Any ideas how I can tell what happened and why the upgrade did not go through?
Thanks,
-Scott