最近自己裝了個ubuntu kylin 在使用的過程中發現，系統的apt-get 的源有毛病，總是安裝不了軟件。

感覺應該是傳說中的墻的原因，所以準備換到阿裏雲的源。

下面是步驟：

1、復制原文件備份

sudo cp /etc/apt/source.list /etc/apt/source.list.bak

2、編輯源列表文件

sudo vim /etc/apt/source.list

3、將原來的列表刪除，添加如下內容

deb http://mirrors.aliyun.com/ubuntu/ vivid main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ vivid-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ vivid-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ vivid-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ vivid-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ vivid main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ vivid-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ vivid-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ vivid-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ vivid-backports main restricted universe multiverse

4、運行sudo apt-get update

5、運行sudo apt-get upgrade

以上就完成了對源的更換。

linux改變apt-get安裝源