Ubuntu apt-get更新源替换及加速方法

http://blog.sina.com.cn/s/blog_a9ec68810102uxw1.html

使用Ubuntu时，apt-get是很方便的一个工具，但默认使用的欧洲源，国内速度太慢。可以把更新源换成速度更快的镜像，并使用apt-fast去多线程更新。

1、备份更新源文件
$ sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak

2、打开更新源文件编辑
$ sudo gedit /etc/apt/sources.list

3、根据UBUNTU版本，把全部内容替换为如下内容

版本11.04
deb http://ubuntu.uestc.edu.cn/ubuntu/ natty main restricted universe multiverse
deb http://ubuntu.uestc.edu.cn/ubuntu/ natty-backports main restricted universe multiverse
deb http://ubuntu.uestc.edu.cn/ubuntu/ natty-proposed main restricted universe multiverse
deb http://ubuntu.uestc.edu.cn/ubuntu/ natty-security main restricted universe multiverse
deb http://ubuntu.uestc.edu.cn/ubuntu/ natty-updates main restricted universe multiverse
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ natty main restricted universe multiverse
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ natty-backports main restricted universe multiverse
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ natty-proposed main restricted universe multiverse
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ natty-security main restricted universe multiverse
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ natty-updates main restricted universe multiverse

版本11.10

deb http://ubuntu.uestc.edu.cn/ubuntu/ oneiric main restricted universe multiverse
deb http://ubuntu.uestc.edu.cn/ubuntu/ oneiric-backports main restricted universe multiverse
deb http://ubuntu.uestc.edu.cn/ubuntu/ oneiric-proposed main restricted universe multiverse
deb http://ubuntu.uestc.edu.cn/ubuntu/ oneiric-security main restricted universe multiverse
deb http://ubuntu.uestc.edu.cn/ubuntu/ oneiric-updates main restricted universe multiverse
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ oneiric main restricted universe multiverse
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ oneiric-backports main restricted universe multiverse
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ oneiric-proposed main restricted universe multiverse
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ oneiric-security main restricted universe multiverse
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ oneiric-updates main restricted universe multiverse

版本12.04

deb http://ubuntu.uestc.edu.cn/ubuntu/ precise main restricted universe multiverse
deb http://ubuntu.uestc.edu.cn/ubuntu/ precise-backports main restricted universe multiverse
deb http://ubuntu.uestc.edu.cn/ubuntu/ precise-proposed main restricted universe multiverse
deb http://ubuntu.uestc.edu.cn/ubuntu/ precise-security main restricted universe multiverse
deb http://ubuntu.uestc.edu.cn/ubuntu/ precise-updates main restricted universe multiverse
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ precise main restricted universe multiverse
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ precise-backports main restricted universe multiverse
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ precise-proposed main restricted universe multiverse
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ precise-security main restricted universe multiverse
deb-src http://ubuntu.uestc.edu.cn/ubuntu/ precise-updates main restricted universe multiverse

4、更新系统
$ sudo apt-get update
$ sudo apt-get dist-upgrade

5、安装apt-fast
$ sudo add-apt-repository ppa:tldm217/tahutek.net
$ sudo apt-get update   
$ sudo apt-get install apt-fast
默认使用4个线程下载，可以通过修改/etc/axelrc中的
#num_connections = 4
比如改为10，并去掉前面的"#"将下载线程改为10。

Ubuntu apt-get更新源替换及加速方法

原文：http://www.cnblogs.com/wangchaoqun1997/p/6655957.html