Some days ago a new preview of Windows 2016 was released. I immediately downloaded the iso and installed it as a vSphere 6 virtual machine. My goal was to get some hands-on experience with Windows Containers. There is a really good guide available from Microsoft describing how to test containers on Azure, in a virtualized environment or on bare metal/existing system. I went the bare metal/existing system route. This requires that the Hyper V role is enabled. But this totally failed in my nested environment. To enable nested virtualization on vSphere, you have to configure the virtual machine appropriately.
Although I've done all this the virtual machine got stuck at the first reboot:
Until now I have no idea how to get this working, and I decided to use an old IBM T420 laptop as a physical server for Windows 2016: