Convert hard drive image from RAW to QCOW2 format:
kvm-img convert -O qcow2 ws-2012.img ws-2012-refimage.qcow2
Note
The ws-2012-refimage.qcow2 file is your reference image. You shoud NEVER modify it, and just make a copy to create a new VM.
The best way is to convert it back to the RAW format with a new name like this
kvm-img convert -O raw ws-2012-refimage.qcow2 new-vm-name.img
The qcow2 file should be about 7 Gb in size.
It’s a good idea to reflect Windows Server type in image’s name. For example
ws-2012-full-refimage.qcow2 for GUI version ws-2012-core-refimage.qcow2 for Core version
Now we have a Reference Windows Server image, which we will use in further image preparation steps.
