I have a USB stick with a Clover partition that I used since 10.9 to install OS X. Like with previous versions, I used the createinstallmedia on the installer partition to make the installer. Now, the installer boots fine and all, but right before beginning the actual install process, it asks me for my Apple ID and starts downloading tons of stuff -- ETA is 5 hours. This never happened with any of the previous installs. Has some policy changed at Apple, for which the external installer has to re-download the OS? Previous versions had the install files right in the stick itself.
EDIT
Jun 14, 2015 56 thoughts on “ Guide:: Install El Capitan Mac OSX on Hackintosh PC Vanilla Installation Method ” Kyler Phillips said: June 15, 2015 at 7:41 pm Excellent post and a great write up (best one I’ve found so far) wish I had saw this before installing Yosemite on Clover – Is there currently a way to upgrade to OS X El Capitan directly.
After that enormous download the install got stuck with a full progress bar and the ETA being 5h43m, that was the ETA when the install process began. I left it there for some time as a similar thing happened when I installed 10.10, but after 10 minutes it had unjammed and completed. I got back home this evening to find it still stuck, so I canceled the installation. As I rebooted it, a dialog warned me that I would be interrupting the download of Mac OS (looks like I was right, the installer was re-downloading the OS). I booted back into my main install, and the target volume is completely empty.
I noticed though that the install stick has 6+ GB occupied, so the installer is unlikely to rely on some sort of net install. This is getting weirder and weirder.