Virt-sparsify

virt-sparsify is a tool which can make a virtual machine disk (or any disk image) sparse a.k.a. thin-provisioned. This means that free space within the disk image can be converted back to free space on the host.

Warning Using virt-sparsify on live virtual machines, or concurrently with other disk editing tools, can be dangerous, potentially causing disk corruption

See also

• libguestfs-tools: virt-sysprep, virt-clone, virt-builder, virt-customize, virt-resize, virt-rescue, virt-sparsify, guestmount, guestfish, virt-inspector, virt-cat, virt-log, virt-df, virt-ls, virt-filesystems, virt-list-filesystems, virt-edit