I use VirtualBox for hosting virtual machines on my laptop and received a Windows 2008R2 server image from a consultant as a compressed QEMU image. So how to convert the QEMU image to a VirtualBox VDI image?
Step#1: Convert QEMU image to raw image.
Starting with the file WindowsServer1-compressed.img (size: 5,172,887,552)
Convert the QEMU image to a raw/dd image using the qemu-img utility.