KVM vs Virtualbox

So you need that old FC9 instance on your fresh F11 install.

Obviously I started a KVM instance on my desktop and installed FC9 in a Virtual Machine,
It took long to install, too long, so I looked if KVM was working correctly
Kvm was loaded but not in use ..
And then you remember why you had VirtualBox on that machine before it's upgrade . indeed, this machine was to old it was not a VT Capable machine . VirtualBox performs much better there ..

But you already have a working installed Qemu image.
What do you do ? Google tells you about vidtool but all you find are broken links ..

So you look further and you find that you can use VBoxManage for the same functionality

  1. VBoxManage convertdd FC9.bin FC0.vdi