I'm afraid I had a bit of a brain-fail there - do the upgrade first, because one XenForo 2 is installed, there is a command line tool built into XF2 to do the conversion automatically.
I'm afraid I had a bit of a brain-fail there - do the upgrade first, because one XenForo 2 is installed, there is a command line tool built into XF2 to do the conversion automatically.