virtualbox.org

Hi Everyone,

Sorry if this is a repeat, but I'm not seeing much out there. So I created an image on my local machine using that is running Windows 7 64 bit. I then created the image we wanted so we can deploy using smartdeploy. We then wanted to centralize this process, so we spun up a virtual server on our VMware environment just to handle all of this for the future. I installed virtualbox on this server, which is Windows Server 2008 r2, which is obviously 64 bit itself. When I go to creating new machines, the option to do a Windows 7 64 bit machine is no longer there. In fact, it's not there for any OS, only 32 bit. Is there something I'm doing wrong or is this not compatible with Server 2008 r2. Again, we don't want this on a local sys admin machine like mine, we want this to be running on a server in our environment so every technician can login and make changes to specified images. Please let me know if anyone else has this problem or a possible solution. Thanks!

It appears that you are wanting to run nested virtualization. While you may be able to get this to work ( it is not supported ) you probably will find out that 64-bit will not work because there is no way to pass the VT-x flag to the sub virtualized guest.

Hmmm I wonder why that would not be supported. To go over it again, Virtualbox is installed on our Virtual 2008 r23 server. So this won't be able to open any 64 bit OS's?

You mentioned the setup was VMware -> Windows server 2008 -> VirtualBox. That makes it nested.
Now if Windows server 2008 is on metal then yes it will work, but you need VMX enabled in the bios and you can not be running hyper-v as MS takes total control and no one else can use it.