ubuntu 14.04.4 LTSソース更新

1、sudo cp/etc/apt/sourceをバックアップする.list/etc/apt/source.list.backup 2、ロード元sudo gedit/etc/apt/source.List,次の内容copyを入れてok 3を保存し,sudo apt-get updateを更新する
以下は網易のソフトウェアソースを提供します.更新する前にubuntuのバージョンとソフトウェアソースのバックアップに注意してください.

deb http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse

deb http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse

deb http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse

deb http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse

deb http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse

deb-src http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse

deb-src http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse

deb-src http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse

deb-src http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse

deb-src http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse