qemu-img create -f qcow2 windows8_disk.qcow2 40G
: Unlike "raw" images that occupy their full size immediately, a Windows 8 QCOW2 file starts small and grows only as data is written by the guest OS. windows 8 qcow2
qemu-img create -f qcow2 win8.qcow2 64G
When creating the image, use a larger cluster size for better performance with Windows 8’s NTFS file system: qemu-img create -f qcow2 windows8_disk