Ubuntu如何更换软件源

 --Ubuntu8换源-----------------------------

如果你什么软件包更新不了，运行sudu apt-get update出现Could not resolve 'cn.archive.ubuntu.com'那么你就需要换一下系统的软件源了。

1、打开终端
应用程序-附件-终端

2、修改更新服务器列表，请在终端执行：
sudo cp /etc/apt/sources.list /etc/apt/sources.list_backup
sudo gedit /etc/apt/sources.list

注意:接下来在打开的文本编辑器中，把你看到的内容全部删掉，访问我们推荐的源http://wiki.ubuntu.org.cn/index.php?title=如何使用我们推荐的源&variant=zh-cn#Hardy.288.04.29_.E7.89.88.E6.9C.AC 8.04页面。在那里里请选择一组对于你来说速度最快的更新服务器列表。粘贴到你所看到的窗口中。

3、更新软件包列表
sudo apt-get update

这里有更详细的说明:http://wiki.ubuntu.org.cn/index.php?title=Qref/Hardy&variant=zh-cn


--查看Ubuntu版本-------------------

方法一

在终端中执行下列指令：

cat /etc/issue

可以查看当前正在运行的 Ubuntu 的版本号。其输出结果类似下面的内容：

Ubuntu 8.04 \n \l

方法二

使用 lsb_release 命令也可以查看 Ubuntu 的版本号，与方法一相比，内容更为详细。执行指令如下：

sudo lsb_release -a

将输出结果：


Distributor ID: Ubuntu
Description: Ubuntu 8.04
Release: 8.04
Codename: feisty

 

 

  参考的是http://www.linuxidc.com/Linux/2012-10/73114.htm    

    安装ubuntu12.10之后，第一件事就是更换源，ubuntu网易163的更新源速度一直很好。

    首先备份源，sudo cp /etc/apt/sources.list /etc/apt/sources.list.old

    更换源，sudo gedit /etc/apt/sources.list

    将下边的源直接覆盖掉：

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

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

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

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

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

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

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

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

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

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

    运行apt-get update

     ubuntu中常用命令：

    apt-get upgrade

    apt-get install

    apt-get bulid-dep

12.04源

 deb http://mirrors.163.com/ubuntu/ precise main restricted

 deb-src http://mirrors.163.com/ubuntu/ precise main restricted

 deb http://mirrors.163.com/ubuntu/ precise-updates main restricted

 deb-src http://mirrors.163.com/ubuntu/ precise-updates main restricted

 deb http://mirrors.163.com/ubuntu/ precise universe

 deb-src http://mirrors.163.com/ubuntu/ precise universe

 deb http://mirrors.163.com/ubuntu/ precise-updates universe

 deb-src http://mirrors.163.com/ubuntu/ precise-updates universe

 deb http://mirrors.163.com/ubuntu/ precise multiverse

 deb-src http://mirrors.163.com/ubuntu/ precise multiverse

 deb http://mirrors.163.com/ubuntu/ precise-updates multiverse

 deb-src http://mirrors.163.com/ubuntu/ precise-updates multiverse

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

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

 deb http://mirrors.163.com/ubuntu/ precise-security main restricted

 deb-src http://mirrors.163.com/ubuntu/ precise-security main restricted

 deb http://mirrors.163.com/ubuntu/ precise-security universe

 deb-src http://mirrors.163.com/ubuntu/ precise-security universe

 deb http://mirrors.163.com/ubuntu/ precise-security multiverse

 deb-src http://mirrors.163.com/ubuntu/ precise-security multiverse

 deb http://extras.ubuntu.com/ubuntu precise main

 deb-src http://extras.ubuntu.com/ubuntu precise main