virt-clone - clone existing virtual machine images


       virt-clone [OPTION]...


       virt-clone is a command line tool for cloning existing virtual machine
       images using the "libvirt" hypervisor management library. It will copy
       the disk images of any existing virtual machine, and define a new guest
       with an identical virtual hardware configuration. Elements which
       require uniqueness will be updated to avoid a clash between old and new

       By default, virt-clone will show an error if the necessary information
       to clone the guest is not provided. The --auto-clone option will
       generate all needed input, aside from the source guest to clone. An
       interactive mode is available with the --prompt option, but this will
       only ask for the minimum required options.


       Most options are not required. Minimum requirements are --original or
       --original-xml (to specify the guest to clone), --name, and appropriate
       storage options via -file.

       -h, --help
           Show the help message and exit

           Connect to a non-default hypervisor. See virt-install(1) for

   General Options
       General configuration parameters that apply to all guest clones.

         Name of the original guest to be cloned. This guest must be shut off
         or paused since it is not possible to safely clone active guests at
         this time.

         Libvirt guest xml file to use as the original guest. The guest does
         not need to be defined on the libvirt connection. This takes the
         place of the "--original" parameter.

         Generate a new guest name, and paths for new storage.

         An example or possible generated output:

           Original name        : MyVM
           Generated clone name : MyVM-clone

           Original disk path   : /home/user/foobar.img
           Generated disk path  : /home/user/foobar-clone.img

         If generated names collide with existing VMs or storage, a number is
         appended, such as foobar-clone-1.img, or MyVM-clone-3.

       -n NAME, --name=NAME
         Name of the new guest virtual machine instance. This must be unique
         amongst all guests known to the hypervisor connection, including
         those not currently active.

       -u UUID, --uuid=UUID
         UUID for the guest; if none is given a random UUID will be generated.
         If you specify UUID, you should use a 32-digit hexadecimal number.
         UUID are intended to be unique across the entire data center, and
         indeed world. Bear this in mind if manually specifying a UUID

   Storage Configuration
       -f DISKFILE, --file=DISKFILE
         Path to the file, disk partition, or logical volume to use as the
         backing store for the new guest's virtual disk. If the original guest
         has multiple disks, this parameter must be repeated multiple times,
         once per disk in the original virtual machine.

         Force cloning the passed disk target ('hdc', 'sda', etc.). By
         default, "virt-clone" will skip certain disks, such as those marked
         'readonly' or 'shareable'.

         Fully allocate the new storage if the path being cloned is a sparse
         file.  See virt-install(1) for more details on sparse vs. nonsparse.

         No storage is cloned: disk images specific by --file are preserved as
         is, and referenced in the new clone XML. This is useful if you want
         to clone a VM XML template, but not the storage contents.

   Networking Configuration
       -m MAC, --mac=MAC
         Fixed MAC address for the guest; If this parameter is omitted, or the
         value "RANDOM" is specified a suitable address will be randomly
         generated. Addresses are applied sequentially to the networks as they
         are listed in the original guest XML.

   Miscellaneous Options
         Print the generated clone XML and exit without cloning.

         Shutdown and remove any existing guest with the passed "--name"
         before cloning the original guest.

       -d, --debug
         Print debugging information to the terminal when running the install
         process.  The debugging information is also stored in
         "$HOME/.virtinst/virt-clone.log" even if this parameter is omitted.

         Prevent interactive prompts. If the intended prompt was a yes/no
         prompt, always say yes. For any other prompts, the application will

         Specifically enable prompting for required information. Default
         prompting is off.


       Clone the guest called "demo" on the default connection, auto
       generating a new name and disk clone path.

         # virt-clone \
              --original demo \

       Clone the guest called "demo" which has a single disk to copy

         # virt-clone \
              --original demo \
              --name newdemo \
              --file /var/lib/xen/images/newdemo.img

       Clone a QEMU guest with multiple disks

         # virt-clone \
              --connect qemu:///system \
              --original demo \
              --name newdemo \
              --file /var/lib/xen/images/newdemo.img \
              --file /var/lib/xen/images/newdata.img

       Clone a guest to a physical device which is at least as big as the
       original guests disks. If the destination device is bigger, the new
       guest can do a filesystem resize when it boots.

         # virt-clone \
              --connect qemu:///system \
              --name demo \
              --file /dev/HostVG/DemoVM \
              --mac 52:54:00:34:11:54


       Written by Kazuki Mizushima, and a team of many other contributors. See
       the AUTHORS file in the source distribution for the complete list of


       Please see


       Copyright (C) Fujitsu Limited 2007, and various contributors.  This is
       free software. You may redistribute copies of it under the terms of the
       GNU General Public License "".
       There is NO WARRANTY, to the extent permitted by law.


       virsh(1), "virt-install(1)", "virt-manager(1)", the project website

                                  2011-07-13                     VIRT-CLONE(1)