QEMU
QCOW2
QCOW2 (KVM, Xen) qcow2 QED (KVM) qed raw raw VDI (VirtualBox) vdi VHD (Hyper-V) vpc VMDK (VMware) vmdk
Restore qcow snapshots
# Create a snapshot
qemu-img snapshot -c snapshot-name /var/lib/libvirt/images/vm-image.qcow2
# List snapshots for a given image
qemu-img snapshot -l /var/lib/libvirt/images/vm-image.qcow2
# Restore snapshot
qemu-img snapshot -a snapshot-name /var/lib/libvirt/images/vm-image.qcow2
Convert qcow to bootable drive
qemu-img convert -f qcow2 -O raw /var/lib/libvirt/images/vm-image.qcow2 /dev/sdb
Convert bootable drive to qcow
dd if=/dev/sda of=/home/ducoterra/Downloads/toshiba.raw conv=noerror,sync,notrunc,sparse status=progress
qemu-img convert -f raw -O qcow2 -p /dev/sdd /var/lib/libvirt/images/toshiba.qcow2
If you need to resize a windows partition to non-continuous space simply grow the last partition, shrink it to the end of the drive, then grow the windows partition with gparted.
ISO
pacman -S cdrtools
mkisofs -r -iso-level 4 -l -o /tmp/arch-files.iso ./arch