[libvirt-users] Creating a snapshot from a KVM VM fails

20 Aug 2013

      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>

[libvirt-users] Creating a snapshot from a KVM VM fails

Tobias Brunner