用ifup eth0的时候出现以下提示：
eth0: ERROR while getting interface flags: No such device
SIOCSIFADDR: No such device
eth0: ERROR while getting interface flags: No such device
SIOCSIFNETMASK: No such device
SIOCSIFBRDADDR: No such device
eth0: ERROR while getting interface flags: No such device
eth0: ERROR while getting interface flags: No such device
Failed to bring up eth0.
只要删除其缓存文件即可
sudo rm /etc/udev/rules.d/70-persistent-net.rules
然后重启就行了。VM配置的网卡MAC地址与Ubuntu jeos安装的配置缓存文件不同所至。
