添加Ubuntu的源

Feisty (7.04) 版本

• 请参阅 [[[Ubuntu简介]]]

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

• 用以下内容替换文件中的所有内容

deb [url]http://archive.ubuntu.com/ubuntu/[/url] feisty main restricted universe multiverse
deb [url]http://archive.ubuntu.com/ubuntu/[/url] feisty-security main restricted universe multiverse
deb [url]http://archive.ubuntu.com/ubuntu/[/url] feisty-updates main restricted universe multiverse
deb [url]http://archive.ubuntu.com/ubuntu/[/url] feisty-backports main restricted universe multiverse
deb [url]http://archive.ubuntu.com/ubuntu/[/url] feisty-proposed main restricted universe multiverse
deb [url]http://ubuntu.cn99.com/ubuntu-cn/[/url] feisty main restricted universe multiverse

这里你也可以直接使用更快速的ubuntu.cn99.com的源（推荐）:

deb [url]http://ubuntu.cn99.com/ubuntu/[/url] feisty main restricted universe multiverse
deb [url]http://ubuntu.cn99.com/ubuntu/[/url] feisty-security main restricted universe multiverse
deb [url]http://ubuntu.cn99.com/ubuntu/[/url] feisty-updates main restricted universe multiverse
deb [url]http://ubuntu.cn99.com/ubuntu/[/url] feisty-backports main restricted universe multiverse
deb [url]http://ubuntu.cn99.com/ubuntu/[/url] feisty-proposed main restricted universe multiverse
deb [url]http://ubuntu.cn99.com/ubuntu-cn/[/url] feisty main restricted universe multiverse

这里你还可以使用速度也非常快的的mirror.lupaworld.com的源:

deb [url]http://mirror.lupaworld.com/ubuntu/archive/[/url] feisty main restricted universe multiverse
deb [url]http://mirror.lupaworld.com/ubuntu/archive/[/url] feisty-security main restricted universe multiverse
deb [url]http://mirror.lupaworld.com/ubuntu/archive/[/url] feisty-updates main restricted universe multiverse
deb [url]http://mirror.lupaworld.com/ubuntu/archive/[/url] feisty-backports main restricted universe multiverse
deb [url]http://mirror.lupaworld.com/ubuntu/archive/[/url] feisty-proposed main restricted universe multiverse
deb [url]http://mirror.lupaworld.com/ubuntu/ubuntu-cn/[/url] feisty main restricted universe multiverse

如果是教育网用户请使用上海交通大学的源:

deb [url]http://ftp.sjtu.edu.cn/ubuntu/[/url] feisty main multiverse restricted universe
deb [url]http://ftp.sjtu.edu.cn/ubuntu/[/url] feisty-security main multiverse restricted universe
deb [url]http://ftp.sjtu.edu.cn/ubuntu/[/url] feisty-updates main multiverse restricted universe
deb [url]http://ftp.sjtu.edu.cn/ubuntu/[/url] feisty-backports main multiverse restricted universe
deb [url]http://ftp.sjtu.edu.cn/ubuntu/[/url] feisty-proposed main multiverse restricted universe
deb [url]http://ftp.sjtu.edu.cn/ubuntu-cn/[/url] feisty main multiverse restricted universe bleeding

上海电信的一个源:

deb [url]http://mirror.rootguide.org/ubuntu/[/url] feisty main restricted universe multiverse
deb [url]http://mirror.rootguide.org/ubuntu/[/url] feisty-proposed main restricted universe multiverse
deb [url]http://mirror.rootguide.org/ubuntu/[/url] feisty-updates main restricted universe multiverse
deb [url]http://mirror.rootguide.org/ubuntu/[/url] feisty-backports main restricted universe multiverse
deb [url]http://mirror.rootguide.org/ubuntu/[/url] feisty-security main restricted universe multiverse
deb [url]http://mirror.rootguide.org/ubuntu-cn/[/url] feisty main restricted universe multiverse

• 保存编辑好的文件

sudo apt-get update