刚装完12.04时,发现网络无法识别,在终端输入ifconfig,发现可以显示etho,说明网卡识别正常,但是没有获得ipv4地址。
最终通过修改NetworkManager.config文件解决问题,具体过程如下:
1. 首先打开该文件 sudo gedit /etc/NetworkManager/NetworkManager.conf , 把managed=false语句改为managed=true, 然后保存。
2. 重新启动MetworkManager,sudo service network-manager restart. 此时应该可以在左上角看到上下的箭头。
关于managed参数的作用:
managed=false | true Controls whether interfaces listed in the 'interfaces' file are managed by NetworkManager. If set to true, then interfaces listed in /etc/network/interfaces are managed by NetworkManager. If set to false, then any interface listed in /etc/network/interfaces will be ignored by NetworkManager.