KVM在线迁移问题

i1zhuxian

刚做个KVM虚拟机在线迁移的实验。NFS，KVM都配置ok，就在最后一步出错了


OK，看报错应该时主机名问题，在2台机器都编辑下/etc/hosts文件，将自己和对方都加进去，在尝试，没这个报错了，不过又有新的错误

[Shell] 纯文本查看 复制代码

Unable to migrate guest: Requested operation is not valid: cannot migrate domain with 1 snapshots

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 44, in cb_wrapper
    callback(asyncjob, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/migrate.py", line 556, in _async_migrate
    vm.migrate(dstconn, migrate_uri, rate, live, secure, meter=meter)
  File "/usr/share/virt-manager/virtManager/domain.py", line 1203, in migrate
    self._backend.migrate(destconn.vmm, flags, newname, interface, rate)
  File "/usr/lib64/python2.6/site-packages/libvirt.py", line 998, in migrate
    if ret is None:raise libvirtError('virDomainMigrate() failed', dom=self)
libvirtError: Requested operation is not valid: cannot migrate domain with 1 snapshots

好吧这个应该是快照的问题，先删掉快照，在试一下
virsh # snapshot-list test
Name                 Creation Time             State
------------------------------------------------------------
test-ip-ok           2015-12-07 10:54:04 +0800 running

virsh # snapshot-delete test test-ip-ok
Domain snapshot test-ip-ok deleted

virsh # snapshot-list test
Name                 Creation Time             State
------------------------------------------------------------

virsh #

好吧，有出现新的错误了……

[Shell] 纯文本查看 复制代码

Unable to migrate guest: unsupported configuration: Unable to find security driver for label selinux

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 44, in cb_wrapper
    callback(asyncjob, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/migrate.py", line 556, in _async_migrate
    vm.migrate(dstconn, migrate_uri, rate, live, secure, meter=meter)
  File "/usr/share/virt-manager/virtManager/domain.py", line 1203, in migrate
    self._backend.migrate(destconn.vmm, flags, newname, interface, rate)
  File "/usr/lib64/python2.6/site-packages/libvirt.py", line 998, in migrate
    if ret is None:raise libvirtError('virDomainMigrate() failed', dom=self)
libvirtError: unsupported configuration: Unable to find security driver for label selinux

vi /etc/libvirt/qemu.conf
设置了 security_driver = "none"
重启 libvirtd服务，再次尝试还是报这个错误，然后没有然后了……
现在主要有2个问题，
1 ， 如果虚拟机是带有快照的，是不是就无法在线迁移了？若可以要怎么做呢？
2 ， 就是上面的那个“Unable to find security driver for label selinux
”的问题，这个要如何处理呢？
感激不尽！

zw2002

是不是selinux没有关闭或者打开。