几年前的一个openstack环境，虚机状态异常，手工登陆计算节点启动kvm时报No such device
[root@server-02 ~]# virsh start instance-e346589e-baca-4ae9-8d71-273f23809d98
error: Failed to start domain instance-e346589e-baca-4ae9-8d71-273f23809d98
error: Cannot get interface MTU on 'qbrce0d8e3e-ee': No such device
[root@server-02 ~]# brctl addbr qbrce0d8e3e-ee
[root@server-02 ~]# virsh start instance-e346589e-baca-4ae9-8d71-273f23809d98
Domain instance-e346589e-baca-4ae9-8d71-273f23809d98 started
[root@server-02 ~]#
标签：02,4ae9,No,kvm,8d71,instance,baca,virsh,273f23809d98 From： https://blog.51cto.com/gaodi2002/7331956