OS X 10.8.5, Mac mini 2.5GHz i5, 100GB free disk space I can download the dmg and mount it successfully after verification (I have done this three times now). I get to the administrator verification (username and password) and then it simply hangs on the “Preparing for installation” and spinning barber pole. The installer log shows nothing useful, but the Console tells me 09/05/2014 10:00:50.772 coreservicesd[72]: Application App:”Installer” [ 0x0/0x168168] ...