On 02/01/2013 04:08 AM, harryxiyou wrote: > Hi all, > > I wanna boot VMs from sheepdog volumes so i do according to > https://github.com/collie/sheepdog/wiki/Libvirt > However, some errors happened to me like following. > > $ ./virsh create os.xml > error：create domain from os.xml failure > error：(domain_definition):14: Premature end of data in tag domain line 1 > (null) > ^ That says your <domain> tag is incomplete. Sure enough... > > $ cat os.xml > <domain type='qemu'> You opened it... > <name>testvm</name> > <memory>1048576</memory> > <os> > <type arch='x86_64'>hvm</type> > </os> > <devices> > <disk type='network'> > <source protocol="sheepdog" name="testvdi"/> > <target dev='hda' bus='ide'/> > </disk> > <graphics type='vnc' port='-1' autoport='yes'/> > </devices> ...but never closed it with </domain>.

Rather than writing XML by hand from scratch, I highly recommend using a higher level program like virt-manager to create a scratch VM, and then use 'virsh edit' to hand tune the resulting XML. That way, you are less likely to forget something essential, and will at least have the benefit of seeing how libvirt indents constructs rather than struggling to visually pick out the indentation with everything starting on the first column.