因為想要直接從文字介面來修改網路設定，所以移除 network-manager 相關套件
$ sudo apt-get remove –purge network-manager network-manager-gnome network-manager-pptp network-manager-pptp-gnome
重新啟動網路時出現
$ sudo /etc/init.d/networking restart
* Reconfiguring network interfaces… RTNETLINK answers: No such process
resolvconf: Error: /etc/resolv.conf isn’t a symlink, not doing anything.
resolvconf: Error: /etc/resolv.conf isn’t a symlink, not doing anything.
[ OK ][@more@]根據下面網頁解決問題：
誤刪/etc/resolv.conf [論壇 – 新手村] | Ubuntu 正體中文站
搬移檔案
$ sudo mv /etc/resolv.conf /run/resolvconf
建立連結
$ sudo ln -s /run/resolvconf/resolv.conf /etc/resolv.conf
重新啟動網路就不會出現錯誤的訊息了！
也可以用底下網頁介紹的方式
【浪費人生】resolvconf: Error: /etc/resolv.conf isn’t a symlink, not doing anything. | [leave] for me
$ sudo dpkg–reconfigure resolvconf
