Dear, i change back instance_path=/var/lib/nova/instances in nova.conf it becomes workable. i don't know what different in this case. Thanks all Edward ________________________________________ 寄件者: openstack-bounces+edward_doong=wiwynn.com at lists.launchpad.net [openstack-bounces+edward_doong=wiwynn.com at lists.launchpad.net] 代表 Edward_Doong at wiwynn.com [Edward_Doong at wiwynn.com] 寄件日期: 2012年11月28日 下午 02:58 收件者: openstack at lists.launchpad.net 主旨: [Openstack] Live migration occur error Dear i follow foc. for Live migration function by NFSv4. http://docs.openstack.org/trunk/openstack-compute/admin/content/configuring-migrations.html but when i use the command: #nova live-migration 08e028a5-1fc3-48d0-9de9-6a1c24733e95 HostB the libvirt will occur error message: 3758: error : virNetClientProgramDispatchError:174 : Unable to pre-create chardev file '/mnt/instances/instance-00000012/console.log': No such file or directory i'm sure the instance path have "console.log" file. and i found information: https://bugs.launchpad.net/nova/+bug/984996 does it the same issue??or i miss some env. Thanks all Edward _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack at lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp