ubuntu源设置

ubuntu源设置
更新源方法：

1. 打开终端。单击主菜单中的“应用程序 - 附件 - 终端”。

2. 修改更新服务器列表。请在终端中执行下面的两条命令：

   sudo cp /etc/apt/sources.list /etc/apt/sources.list_backup

   #备份原来的软件列表，会要求输入密码

   sudo gedit /etc/apt/sources.list

  #用gedit打开sources.list文件

   在接下来在打开的文本编辑器中，把看到的内容全部删掉，在上面Ubuntu11.04源列表里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。这里推荐台湾源和网易源，更新软件的速度很快！

4. 关闭文本编辑器。

5. 更新软件包列表。执行下面的命令：

   sudo apt-get update

6. 安装系统更新

    打开“系统->系统管理->更新管理器”，安装更新。完成后若系统提示重新启动，请重新启动系统。

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

deb http://archive.ubuntu.com/ubuntu/ lucid main restricted
deb-src http://archive.ubuntu.com/ubuntu/ lucid main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://archive.ubuntu.com/ubuntu/ lucid-updates main restricted
deb-src http://archive.ubuntu.com/ubuntu/ lucid-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://archive.ubuntu.com/ubuntu/ lucid universe
deb-src http://archive.ubuntu.com/ubuntu/ lucid universe
deb http://archive.ubuntu.com/ubuntu/ lucid-updates universe
deb-src http://archive.ubuntu.com/ubuntu/ lucid-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://archive.ubuntu.com/ubuntu/ lucid multiverse
deb-src http://archive.ubuntu.com/ubuntu/ lucid multiverse
deb http://archive.ubuntu.com/ubuntu/ lucid-updates multiverse
deb-src http://archive.ubuntu.com/ubuntu/ lucid-updates multiverse

## Uncomment the following two lines to add software from the 'backports'
## repository.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://archive.ubuntu.com/ubuntu/ lucid-backports main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ lucid-backports main restricted universe multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
deb http://archive.canonical.com/ubuntu lucid partner
deb-src http://archive.canonical.com/ubuntu lucid partner

deb http://security.ubuntu.com/ubuntu lucid-security main restricted
deb-src http://security.ubuntu.com/ubuntu lucid-security main restricted
deb http://security.ubuntu.com/ubuntu lucid-security universe
deb-src http://security.ubuntu.com/ubuntu lucid-security universe
deb http://security.ubuntu.com/ubuntu lucid-security multiverse
deb-src http://security.ubuntu.com/ubuntu lucid-security multiverse

#网易163更新服务器：

deb http://mirrors.163.com/ubuntu/ lucid main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ lucid-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ lucid-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ lucid-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ lucid-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ lucid main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ lucid-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ lucid-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ lucid-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ lucid-backports main restricted universe multiverse