Hey guys! So I just yesterday installed the Public Beta of El Cap on my second Mac. I did this by going to the App Store, purchases, and downloading the file from there. Then I installed the file, which I guess is PB1?... Now, today, I tried updating to PB5 because the update showed up. Everything went fine until the computer restarted. Now, every time the Mac tries to boot up, it shows the Apple logo on white background and on the left a whole amount of text saying something I don't understand and also something along the lines of OS X Version not yet detected or something. After this happened I recovered from a Backup (from this morning before to Update) and tried to to the Update again... Which failed again. Anyone knows whats going on? Thanks!