I'm trying to run a Linux VirtualBox instance inside a Windows 7 VirtualBox instance, but Linux (tried both Puppy and Mint) doesn't boot.
My research says that this should be possible, see here for example: Can you run a machine emulator (Bochs) inside a virtual machine? but I can't get it to work.
Here are a couple of screenshots showing where the boot process stops for Linux Mint and Puppy Linux.
What am I doing wrong?
EDIT: So, it should indeed be possible according to the VirtualBox forums. But it is not supported. And if you do get it running it will probably be slow.
Doing this is called "Nested virtualization". Googling for that gives many hits. For example a link to the VMWare Workstation 9.0 changelog that mentions support for nested virtualization