libguestfs is a set of tools for accessing and modifying virtual machine (VM) disk images. You can use this for viewing and editing files inside guests, scripting changes to VMs, monitoring disk used/free statistics, P2V, V2V, performing partial backups, cloning VMs, and much more. libguestfs can access nearly any type of filesystem including: all known types of Linux filesystem (ext2/3/4, XFS, btrfs, etc.), any Windows filesystem (VFAT and NTFS), any Mac OS X and BSD filesystems, LVM2 volumes, MBR and GPT disk partitions, raw disks, qcow2, CD and DVD ISO images, SD cards, and dozens more. libguestfs doesn't need root permissions.

Changes

New virt-alignment-scan, virt-sparsify, and virt-sysprep tools were added. Virt-resize can now resize Ubuntu guests, and fix alignment issues in Windows and Linux guests. 'guestmount --live' works. Systemtap support was added. Virt-cat now supports Windows drive letters and paths. Erlang bindings were added. 18 bugs have been official fixed, and many more unofficially.

URL: libguestfs, library for accessing and modifying VM disk images