I did the 10.11 installation quite some time ago, so I don't really remember, but it could have been this page: On top of that shell scripts do not create VMDKs, change chipsets or modify the CPU, so there must have been a guide someplace. Now, you didn't post the link to the shell script that you found on the web, so I can't tell what they're doing, but I know one thing: chances are that they're wrong. So, please stop attaching things that do not help particularly. I already saw the full details of your host from the logs.
#VIRTUALBOX FOR MAC OS X 10.11 INSTALL#
You do see the difference, right? Plus your desktop is not a proof that you're not trying to install a Hacintosh guest. I said that the evidence points to the guest being a Hackintosh. I didn't suggest that your host is a Hackintosh. I created those using a shell script I found somewhere on the web.
#VIRTUALBOX FOR MAC OS X 10.11 UPGRADE#
The machine was running 10.8.5 for over three years so it was time for an upgrade anyway. There were no issues starting any machine and none of them crashed. My Desktop (exported as JPEG to get a smaller size) Alright, for what it's worth, I completely erased the 10.8.5 host machine, upgraded it to OS X 10.11, reinstalled virtual box, imported the guests, and they all started without a hitch. Sound assertion in AppleHDAController at line 567 screenshot There are no audio devices available for Mac OS X Server 10.11 and OS X beta 10.12 guests on my Mac OS X 10.10 host running VirtualBox 5.1.4 This was an older bug which was also fixed with 5.1.4.