Creating a snapshot from a KVM VM fails

[Tobias Brunner <tobias@xxxxxxxx>]

Hi,

I'm trying to create a snapshot from a KVM VM:

# virsh snapshot-create one-5
error: unsupported configuration: internal checkpoints require at least 
one disk to be selected for snapshot

How can I debug this error message and what does it mean?

Some system information:
* Ubuntu 13.04 64Bit
* virsh --version: 1.0.2
* The XML of the VM is below

Thanks for all help...

Cheers,
Tobias

<domain type='kvm' id='4'>
  <name>one-5</name>
  <uuid>cff38c6a-2996-7709-c4f4-0ed826c2fb02</uuid>
  <memory unit='KiB'>524288</memory>
  <currentMemory unit='KiB'>524288</currentMemory>
  <vcpu placement='static'>1</vcpu>
  <cputune>
    <shares>1024</shares>
  </cputune>
  <os>
    <type arch='x86_64' machine='pc-i440fx-1.4'>hvm</type>
    <boot dev='hd'/>
  </os>
  <features>
    <acpi/>
  </features>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/bin/kvm</emulator>
    <disk type='network' device='disk'>
      <driver name='qemu' type='raw' cache='none'/>
      <source protocol='rbd' name='one/one-5-5-0'/>
      <target dev='hda' bus='ide'/>
      <alias name='ide0-0-0'/>
      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <source file='/var/lib/one//datastores/0/5/disk.1'/>
      <target dev='hdb' bus='ide'/>
      <readonly/>
      <alias name='ide0-0-1'/>
      <address type='drive' controller='0' bus='0' target='0' unit='1'/>
    </disk>
    <controller type='ide' index='0'>
      <alias name='ide0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' 
function='0x1'/>
    </controller>
    <controller type='usb' index='0'>
      <alias name='usb0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' 
function='0x2'/>
    </controller>
    <interface type='bridge'>
      <mac address='02:00:c0:a8:31:97'/>
      <source bridge='vmbr0'/>
      <virtualport type='openvswitch'>
        <parameters interfaceid='6e492227-cd8b-f472-9f3d-1161ddf9ecfc'/>
      </virtualport>
      <target dev='vnet0'/>
      <alias name='net0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' 
function='0x0'/>
    </interface>
    <input type='mouse' bus='ps2'/>
    <graphics type='vnc' port='5905' autoport='no' listen='0.0.0.0'>
      <listen type='address' address='0.0.0.0'/>
    </graphics>
    <video>
      <model type='cirrus' vram='9216' heads='1'/>
      <alias name='video0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' 
function='0x0'/>
    </video>
    <memballoon model='virtio'>
      <alias name='balloon0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' 
function='0x0'/>
    </memballoon>
  </devices>
  <seclabel type='dynamic' model='apparmor' relabel='yes'>
    <label>libvirt-cff38c6a-2996-7709-c4f4-0ed826c2fb02</label>
    
<imagelabel>libvirt-cff38c6a-2996-7709-c4f4-0ed826c2fb02</imagelabel>
  </seclabel>
</domain>

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