I've installed the El Capitan beta and I'm having some issues. The install seemed to go flawlesly, however it will not boot. I can get booted into Recovery Mode, and I can boot into "Safe Boot". Other wise I get a progress bar that gets about 3/4 of the way and stops, then a black box containing white text shows up in the Left of my screen and it reboots.
I've done some reading, tried some different things, tried removing VirtualBox, still having the same issues.