Libguestfs is a library for accessing and modifying guest disk images. Amongst the things this is good for: making batch configuration changes to guests, getting disk used/free statistics , migrating between virtualization systems , performing partial backups, performing partial guest clones, cloning guests and changing registry/UUID/hostname info, and much else besides. Libguestfs uses Linux kernel and qemu code, and can access any type of guest filesystem that Linux and qemu can, including but not limited to: ext2/3/4, btrfs, FAT and NTFS, LVM, many different disk partition schemes, qcow, qcow2, vmdk. Libguestfs provides ways to enumerate guest storage . It can also run commands in the context of the guest. Libguestfs is a library that can be linked with C and C++ management programs. See also the "guestfish" package for shell scripting and command line access, and "libguestfs-mount" for mounting guest filesystems on the host using FUSE. For Perl bindings, see "perl-libguestfs". For OCaml bindings, see "ocaml-libguestfs-devel". For Python bindings, see "python-libguestfs". For Ruby bindings, see "ruby-libguestfs". For Java bindings, see "libguestfs-java-devel". For PHP bindings, see "php-libguestfs".