virsh snapshot-create-as win10 --name "before-update" --disk-only --atomic Or using QEMU:
qemu-img convert -f vdi windows10.vdi -O qcow2 windows10.qcow2 windows 10qcow2
Introduction: What is a QCOW2 File? In the world of open-source virtualization, file formats matter. While Windows users are accustomed to .VHDX (Hyper-V) or .VMDK (VMware), the Linux ecosystem—specifically the KVM (Kernel-based Virtual Machine) and QEMU hypervisor—relies heavily on the QCOW2 format. windows 10qcow2
qemu-img snapshot -c pre_patch windows10.qcow2 qemu-img snapshot -l windows10.qcow2 # List snapshots Create a base image (golden master) and never modify it: windows 10qcow2
stands for QEMU Copy-On-Write version 2 . It is a disk image format that offers advanced features like snapshots, compression, encryption, and dynamic allocation.
qemu-img convert -f vmdk windows10.vmdk -O qcow2 windows10.qcow2