Run the following command to create a new QCOW2 file that relies on the base:
qemu-img create -f qcow2 -o cluster_size=64K,preallocation=metadata win7.qcow2 40G windows 7 qcow2 top
For high-performance workloads, increasing the cluster size to 2M can significantly reduce overhead during large file operations. Where to Find Ready-to-Use Images Run the following command to create a new
virt-install --name win7 --ram 2048 --vcpus 2 \ --disk path=windows7.qcow2,format=qcow2,bus=virtio \ --cdrom /path/to/windows7.iso \ --disk path=/path/to/virtio-win.iso,device=cdrom \ --network network=default,model=virtio \ --graphics vnc --os-variant win7 Use code with caution. Copied to clipboard 3. "Top" Optimization Steps device=cdrom \ --network network=default
To archive this article as a checklist: