Windows 7 Qcow2 Top _best_ -

qemu-img create -f qcow2 -b win7_compressed.qcow2 -F qcow2 win7_instance_1.qcow2 Use code with caution.

Open a terminal or command prompt and initialize a clean 40GB virtual drive: qemu-img create -f qcow2 win7_base.qcow2 40G Use code with caution. Advanced Optimization Flags windows 7 qcow2 top

Use the qemu-img convert command. For example: qemu-img convert -p -f raw -O qcow2 -o cluster_size=2M windows7.raw windows7.qcow2 . This will create a new QCOW2 image with the optimal cluster size. qemu-img create -f qcow2 -b win7_compressed

While Windows 7 is an older operating system, it does not have to be a slow one inside a virtual machine. By applying these optimizations, you can turn a sluggish VM into a highly responsive virtual PC that makes working with legacy applications a pleasure rather than a pain. For example: qemu-img convert -p -f raw -O

qemu-img convert -O qcow2 -c windows_7_top.qcow2 windows_7_compressed.qcow2 Use code with caution.

When the Windows 7 installation screen prompts you to choose a hard drive, the list will appear blank because Windows cannot read the VirtIO bus out of the box. Click . Browse the attached VirtIO ISO. Navigate to the viostor/w7/amd64 (for 64-bit) folder.

qemu-img create -f qcow2 -o preallocation=metadata,cluster_size=64k win7.qcow2 80G