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RHEV can support nesting however, for this to be configured, your "overlords" need to do the setup first. What you can do instead, if your VM has the resources, is use containers inside it. LXC and Docker come to mind, with Vagrant lagging behind (it requires vbox, which is still doable). If the app supports it, I'd even try and make do with a simple ...


If you don't mind switching to KVM, oVirt is an out of the box VDI and SVI system. It is actually used for VDI at academic institutions


If your target VM is a BSD system, pygrub can't read FFSv2. You'll need your root filesystem to be FFSv1 -- which is more easily said than done.

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