[libvirt-users] live migration without shared storage problems.

Hi, all I migrate a vm from source host to the destination host. I am sure every part is ok for migration. 1 Create the image in the destination and change the user and group. 2 Open TCP socket in the destination host. and I migrate in the source host command line. $ virsh migrate --live --copy-storage-all vmubuntu qemu+ssh://destinationHost/system --verbose But I get the error "error: operation failed : failed to retrieve chardev info inqemu with 'info chardev'" In the destination I find in the vmubuntu.log The error is "Migration failed. Exit code tcp:0.0.0.0:49170(-98),exiting." What can I do to solve it ? I do not understand how the error comes. Anyone can help me ? Thanks in advance.