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       libvirt-migrate-qemu-disks  -  program  for  migrating pre-0.8.3 domain


       Libvirt versions  earlier  that  0.8.3  would  probe  a  qemu  disk  to
       determine its format and did not require that the format be declared in
       the XML. Newer versions of libvirt will default  to  the  'raw'  format
       when the format is not specified in the XML. As a result, non-raw disks
       without unspecified disk format will no longer be available in  virtual

       libvirt-migrate-qemu-disks   aids   in  transitioning  virtual  machine
       definitions to the new required format. In essence, it will  check  all
       domains  for  affected  virtual  machines, probe the affected disks and
       update the domain definition accordingly. For example, a domain with:

           <disk type='file' device='disk'>
             <source file='/var/lib/libvirt/images/vm1.qcow2'/>
             <target dev='hda' bus='ide'/>
             <address type='drive' controller='0' bus='0' unit='0'/>

       will be updated to have:

           <disk type='file' device='disk'>
             <driver name='qemu' type='qcow2'/>
             <source file='/var/lib/libvirt/images/vm1.qcow2'/>
             <target dev='hda' bus='ide'/>
             <address type='drive' controller='0' bus='0' unit='0'/>


       libvirt-migrate-qemu-disks [-c URI] [-d] -a

       libvirt-migrate-qemu-disks [-c URI] [-d] -t TYPE <DOMAIN>


       -h, --help
              show help message and exit

       -a     probe all domains and migrate if necessary

       -c URI connection URI to  use.  If  one  is  not  specified,  will  use
              qemu:///system.   Only  qemu:///system  and  qemu:///session  is

       -t TYPE
              migrate specified domains from raw to disk format TYPE

       -d     debug output


       To probe and migrate all exisiting domains (root may be needed to probe
       the disk):

         # libvirt-migrate-qemu-disks -a

       To migrate the 'vm1' and 'vm2' domains:

         # libvirt-migrate-qemu-disks -t qcow2 vm1 vm2


       In  the event that libvirt-migrate-qemu-disks is unable to migrate your
       disks, virsh can be used directly. For example:

         $ qemu-img info <path to your disk>
         $ virsh dumpxml <domain-id> > domain.xml
         ... edit domain.xml to use the file format seen with qemu-img ...
         $ virsh define domain.xml

       See    for    more




       libvirt-migrate-qemu-disks is Copyright 2010, Canonical Ltd.

       libvirt-migrate-qemu-disks  and this manual page was originally written
       by Jamie Strandboge <>