Ubuntu 12.04更新源地址列表更改方法 -----转载

 每次升级ubuntu都有更换更新源（gengxinyuan），其实更新源地址不必上网找，直接自己更改就可以了。更新源的地址基本上是这样的：

        deb oneiric main universe restricted multiverse

      这个是11.10的更新源地址，其中 oneiric就是ubuntu 11.10的开发代号，所以我们只需要将电脑中的更新源列表里的开发代号替换为ubuntu 12.04的开发代号就可以了，用ctrl+F查找出来全部替换就可以了。因此以后再换版本就不用自己上网搜索更新源了。

 

ubuntu 12.04的开发代号是Precise Pangolin，译为精确的穿山甲。所以只需将oneiric替换为precise即可

1、首先备份Ubuntu 11.10源列表
sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup （备份下当前的源列表，有备无患嘛）

2、修改更新源 
sudo gedit /etc/apt/sources.list （打开Ubuntu 11.10源列表文件）

3、用ctrl+F查找所有的oneiric，然后全部替换为precise

4、通知ubuntu启用新的更新源 sudo apt-get update 

//当然如果你比较懒，或者是全新安装的ubuntu，那你可以直接把下面的代码复制到sources.list中

 

 #台湾源
deb precise main universe restricted multiverse
deb-src precise main universe restricted multiverse
deb precise-security universe main multiverse restricted
deb-src precise-security universe main multiverse restricted
deb precise-updates universe main multiverse restricted
deb-src precise-updates universe main multiverse restricted


#网易 Ubuntu 11.10 源（速度很快） 
deb precise main universe restricted multiverse 
deb-src precise main universe restricted multiverse
deb precise-security universe main multiverse restricted
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deb precise-updates universe main multiverse restricted
deb precise-proposed universe main multiverse restricted
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deb-src precise-updates universe main multiverse restricted


#骨头源，骨头源是bones7456架设的一个Ubuntu源 ，提供ubuntu,deepin 
deb precise main universe restricted multiverse 
deb-src precise main universe restricted multiverse 
deb precise-security universe main multiverse restricted
deb-src precise-security universe main multiverse restricted
deb precise-updates universe main multiverse restricted
deb precise-proposed universe main multiverse restricted
deb-src precise-proposed universe main multiverse restricted
deb precise-backports universe main multiverse restricted
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deb-src precise-updates universe main multiverse restricted


#mirror.lupaworld.com的源，速度很快
deb precise main restricted universe multiverse
deb precise-security main restricted universe multiverse
deb precise-updates main restricted universe multiverse
deb precise-backports main restricted universe multiverse
deb precise main restricted universe multiverse



#ubuntu.cn99.com源（推荐）:
deb precise main restricted universe multiverse
deb precise-updates main restricted universe multiverse
deb precise-security main restricted universe multiverse
deb precise-backports main restricted universe multiverse
deb precise main restricted universe multiverse


//教育网源
如果你是在校大学生，可以使用校园网/教育网，就是用教育网的资源吧，中科大，兰大、厦门大学都有很多资源，尤其是支持ipv6的，那更新速度就按兆算了。 
中科大：
厦门大学：



#电子科技大学 
deb precise main restricted universe multiverse
deb precise-backports main restricted universe multiverse
deb precise-proposed main restricted universe multiverse
deb precise-security main restricted universe multiverse
deb precise-updates main restricted universe multiverse
deb-src precise main restricted universe multiverse
deb-src precise-backports main restricted universe multiverse
deb-src precise-proposed main restricted universe multiverse
deb-src precise-security main restricted universe multiverse
deb-src precise-updates main restricted universe multiverse


#中国科技大学 
deb precise main restricted universe multiverse
deb precise-backports restricted universe multiverse
deb precise-proposed main restricted universe multiverse
deb precise-security main restricted universe multiverse
deb precise-updates main restricted universe multiverse
deb-src precise main restricted universe multiverse
deb-src precise-backports main restricted universe multiverse
deb-src precise-proposed main restricted universe multiverse
deb-src precise-security main restricted universe multiverse
deb-src precise-updates main restricted universe multiverse


#北京理工大学 
deb precise main multiverse restricted universe
deb precise-backports main multiverse restricted universe
deb precise-proposed main multiverse restricted universe
deb precise-security main multiverse restricted universe
deb precise-updates main multiverse restricted universe
deb-src precise main multiverse restricted universe
deb-src precise-backports main multiverse restricted universe
deb-src precise-proposed main multiverse restricted universe
deb-src precise-security main multiverse restricted universe
deb-src precise-updates main multiverse restricted universe


#兰州大学 
deb ftp://mirror.lzu.edu.cn/ubuntu/ precise main multiverse restricted universe 
deb ftp://mirror.lzu.edu.cn/ubuntu/ precise-backports main multiverse restricted universe
deb ftp://mirror.lzu.edu.cn/ubuntu/ precise-proposed main multiverse restricted universe
deb ftp://mirror.lzu.edu.cn/ubuntu/ precise-security main multiverse restricted universe
deb ftp://mirror.lzu.edu.cn/ubuntu/ precise-updates main multiverse restricted universe
deb ftp://mirror.lzu.edu.cn/ubuntu-cn/ precise main multiverse restricted universe


#上海交通大学 
deb precise main multiverse restricted universe 
deb precise-backports main multiverse restricted universe
deb precise-proposed main multiverse restricted universe
deb precise-security main multiverse restricted universe
deb precise-updates main multiverse restricted universe
deb precise main multiverse restricted universe
deb-src precise main multiverse restricted universe
deb-src precise-backports main multiverse restricted universe
deb-src precise-proposed main multiverse restricted universe
deb-src precise-security main multiverse restricted universe
deb-src precise-updates main multiverse restricted universe

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以上转自   http://blog.csdn.net/tender001/article/details/7678458