虚拟机备份转移后，网络启动异常，提示“SIOCSIFADDR: No such device”
he problem lies in the fact that ethernet MAC addresses are cached.
You need to remove a file to clear the cached value:
问题是由于以太网MAC地址被缓存。 你需要删除一个文件来清除缓存值：
$ sudo rm /etc/udev/rules.d/70-persistent-net.rules
$ reboot
重启后就恢复正常！