: You will likely need VirtIO drivers during the installation so Windows can "see" the QCOW2 disk if you use the virtio bus for better performance.
: A 60GB Windows 8 installation might only take up 15GB of physical space on your drive initially.
Running Windows 8 on QEMU/KVM using a qcow2 disk image is a powerful, stable, and efficient solution. While it requires a few more steps than consumer-level hypervisors, the payoff is superior performance, especially when using the , and the unmatched flexibility of the qcow2 format , including snapshots, compression, and thin provisioning. windows 8 qcow2
For Windows 8—an OS that was notoriously finicky about drivers during its early years—this capability transforms it from a frustration into a stable, testable appliance.
Note: While the file is capped at 40 gigabytes, the initial size on your host machine will only be a few kilobytes. Step 2: Download VirtIO Drivers : You will likely need VirtIO drivers during
If you have a Windows 8 installation in another format (like VHD or VMDK), you can convert it to QCOW2 using qemu-img .
First, shut down the Windows 8 VM completely. Then, run the qemu-img convert command to compress the image into a new file: While it requires a few more steps than
Remember, consistent performance is achieved by not skipping the installation of VirtIO drivers, as Windows 8 itself does not ship with them. By following the steps in this guide, you can have a fully optimized Windows 8 virtual machine that runs smoothly alongside your host Linux system.
To achieve maximum performance, run the virtual machine with hardware acceleration ( -enable-kvm ), optimized CPU topologies, and VirtIO interfaces.
This guide explains how to obtain, create, optimize, and manage a for maximum performance and efficiency. What is a Windows 8 QCOW2 Image?