Ubuntu安裝後默認的官方源是美國的服務器，但是美國服務器在國內安裝軟件等會有較大的限制。所以我們需要將默認的源切換爲國內源。一般來說，常用的國內源有阿里源（這是中國官方源）、網易源和搜狐源等等。除此之外，還有高校源，比如清華、中科大以及浙大等等。如果是在校學生，那麼換成自己學校內部的源，更新和安裝軟件的速度會很快。如果是非校園網絡，那麼最推薦的就是阿里源。不同版本的Ubuntu系統的源列表不相同，在這裏我只列舉Ubuntu 14.04和Ubuntu 16.04兩種系統的源列表。
1. 更換源的兩種方式
（1）打開系統設置選擇，software&updates，如下：
然後在跳出來的框中點擊選擇”Download from：“選項
再點擊other選項會出現一個choose a download server框並選擇China，裏面有很多國內服務器可選擇。
（2）在sources.list文件中手動更改源，即將對應源列表中的代碼複製到sources.list文件中，過程如下：
<1> 打開終端，通過cd指令進入sources.list文件所在目錄。
| $ cd /etc/apt |
<2> 將原sources.list文件拷貝做備份，可以進入/etc/apt目錄下看到有一個sources.list.bak文件。
|
$ sudo cp sources.list sources.list.bak |
<3> 通過gedit指令對sources.list進行編輯（也可以用vim指令），並將sources.list文件中的內容全選刪除，再把對應的源列表的內容複製到文件中。
|
$ sudo gedit sources.list |
<4>訪問源列表裏的網址，並讀取軟件列表，然後更新保存在本地電腦，換源結束。
|
$ sudo apt-get update |
2. Ubuntu 14.04常用的源列表
（1）阿里雲源
deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse
（2）網易源
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
（3）教育網之浙大源
deb http://mirrors.zju.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb http://mirrors.zju.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb http://mirrors.zju.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb http://mirrors.zju.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb http://mirrors.zju.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
deb-src http://mirrors.zju.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb-src http://mirrors.zju.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb-src http://mirrors.zju.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb-src http://mirrors.zju.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb-src http://mirrors.zju.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
（4）教育網之中科大源
deb http://debian.ustc.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb http://debian.ustc.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb http://debian.ustc.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb http://debian.ustc.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb http://debian.ustc.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
deb-src http://debian.ustc.edu.cn/ubuntu/ trusty main multiverse restricted universe
deb-src http://debian.ustc.edu.cn/ubuntu/ trusty-backports main multiverse restricted universe
deb-src http://debian.ustc.edu.cn/ubuntu/ trusty-proposed main multiverse restricted universe
deb-src http://debian.ustc.edu.cn/ubuntu/ trusty-security main multiverse restricted universe
deb-src http://debian.ustc.edu.cn/ubuntu/ trusty-updates main multiverse restricted universe
（5）教育網之清華源
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ trusty-proposed main restricted universe multiverse
3. Ubuntu 16.04常用的源列表
（1）阿里雲源
deb http://mirrors.aliyun.com/ubuntu/ xenial main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ xenial-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ xenial main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ xenial-backports main restricted universe multiverse
（2）網易源
deb http://mirrors.163.com/ubuntu/ xenial main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ xenial-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ xenial-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ xenial-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ xenial-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ xenial main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ xenial-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ xenial-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ xenial-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ xenial-backports main restricted universe multiverse
（3）教育網之浙大源
deb http://mirrors.zju.edu.cn/ubuntu xenial main universe restricted multiverse
deb http://mirrors.zju.edu.cn/ubuntu xenial-security main universe restricted multiverse
deb http://mirrors.zju.edu.cn/ubuntu xenial-updates main universe restricted multiverse
deb http://mirrors.zju.edu.cn/ubuntu xenial-proposed main universe restricted multiverse
deb http://mirrors.zju.edu.cn/ubuntu xenial-backports main universe restricted multiverse
deb-src http://mirrors.zju.edu.cn/ubuntu xenial main universe restricted multiverse
deb-src http://mirrors.zju.edu.cn/ubuntu xenial-security main universe restricted multiverse
deb-src http://mirrors.zju.edu.cn/ubuntu xenial-updates main universe restricted multiverse
deb-src http://mirrors.zju.edu.cn/ubuntu xenial-proposed main universe restricted multiverse
deb-src http://mirrors.zju.edu.cn/ubuntu xenial-backports main universe restricted multiverse
（4）教育網之中科大源
deb http://mirrors.ustc.edu.cn/ubuntu/ xenial main restricted universe multiverse
deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-security main restricted universe multiverse
deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse
deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse
deb http://mirrors.ustc.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse
deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial main restricted universe multiverse
deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-security main restricted universe multiverse
deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-updates main restricted universe multiverse
deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-proposed main restricted universe multiverse
deb-src http://mirrors.ustc.edu.cn/ubuntu/ xenial-backports main restricted universe multiverse
（5）教育網之清華源
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main multiverse restricted universe
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main multiverse restricted universe
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-proposed main multiverse restricted universe
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main multiverse restricted universe
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-proposed main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main multiverse restricted universe
轉自：https://blog.csdn.net/bigdog_1027/article/details/78924768