[libvirt-users] error when call migrate function "error: invalid argument: qemuDomainMigratePrepare3: unsupported flags (0x200)"

Hello, I try to migrate a VM and I get this error : loic@loic-VirtualBox:~/workspace/src/build/bin$ ./virsh --connect qemu:///system migrate --live vmUbuntuPartage2CacheWriteBack qemu+ssh://192.168.10x.2x/system --unsafe loic(a)192.168.10x.2x&#39;s password: error: invalid argument: qemuDomainMigratePrepare3: unsupported flags (0x200) Does somebody know this error? I am working on windows 7, I have: 1) Virtual box with two vms ubuntu desktop 12.04: "VM1" and "VM40" 2) One shared hard drive build with virtual box: "newDiskSharedFev.vdi" In my VM1: 1) I have build one "vmUbuntuPartage" ubuntu server 12.10 on shared disk with this command: sudo virt-install -n vmUbuntuPartage -r 1500 --disk path=/media/partage/newDiskSharedFev.vdi,bus=virtio,size=4,cache=writeback -c /home/loic/Downloads/ubuntu-12.04.1-server-i386.iso --network network=default,model=virtio --connect=qemu:///system --vnc -v 2) I have download and built libvirt-0.10.0 (I can give configure command if necessary) In my VM40: 1) I install libvirt with apt-get 2) I have mounted shared folder with "newDiskSharedFev.vdi" So, in my VM1 I try to migrate my "vmUbuntuPartage" from VM1 to VM40 and I get error above. Here my configuration file /etc/libvirt/qemu/ vmUbuntuPartage.xml --> I try to change <driver name='qemu' type='raw' cache='none or writeback or writetrough'/> ================ <!-- WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE OVERWRITTEN AND LOST. Changes to this xml configuration should be made using: virsh edit vmUbuntuPartage or other application using the libvirt API. --> <domain type='qemu'> <name>vmUbuntuPartage</name> <uuid>5d38cf86-d9c5-b0f2-cc03-982a1f18bede</uuid> <memory>1536000</memory> <currentMemory>1536000</currentMemory> <vcpu>1</vcpu> <os> <type arch='i686' machine='pc-1.0'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> </features> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/bin/qemu-system-x86_64</emulator> <disk type='file' device='disk'> <driver name='qemu' type='raw' cache='none'/> <source file='/media/partage/SharedDiskUbuntu.vdi'/> <target dev='vda' bus='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </disk> <disk type='block' device='cdrom'> <driver name='qemu' type='raw'/> <target dev='hdc' bus='ide'/> <readonly/> <address type='drive' controller='0' bus='1' unit='0'/> </disk> <controller type='ide' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> </controller> <interface type='network'> <mac address='52:54:00:8b:b1:80'/> <source network='default'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface> <serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target type='serial' port='0'/> </console> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='-1' autoport='yes'/> <video> <model type='cirrus' vram='9216' heads='1'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </video> <memballoon model='virtio'> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </memballoon> </devices> </domain> ================== Loïc Cloâtre _________________________________________________________________________________________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration, France Telecom - Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci. This message and its attachments may contain confidential or privileged information that may be protected by law; they should not be distributed, used or copied without authorisation. If you have received this email in error, please notify the sender and delete this message and its attachments. As emails may be altered, France Telecom - Orange is not liable for messages that have been modified, changed or falsified. Thank you.