ubuntu8.04自带的更新源里软件比较少，上网搜索了cn99的源：

deb http://ubuntu.cn99.com/ubuntu/ gutsy main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ gutsy-security main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ gutsy-updates main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ gutsy-proposed main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ gutsy-backports main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ gutsy main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ gutsy-security main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ gutsy-updates main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ gutsy-proposed main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ gutsy-backports main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu-cn/ gutsy main restricted universe multiverse

打开终端

sudo cp /etc/apt/sources.list /etc/apt/sources.list_bak                    #备份sources.list

sudo gedit /etc/apt/sources.list

把原来的hardy源都去掉，贴上上面的源地址，保存就ok了

sudo apt-get update         #更新软件列表，其实也可以直接在新立得软件包管理器里面更新的了

下面是一些其他的源，其实源非常的多，最恐怖的是要去试试哪个最快，要不填上一大堆慢死也是干着急……

#澳大利亚的源

deb http://ftp.iinet.net.au/pub/ubuntu/ hardy main restricted universe multiverse
deb http://ftp.iinet.net.au/pub/ubuntu/ hardy-security main restricted universe multiverse
deb http://ftp.iinet.net.au/pub/ubuntu/ hardy-updates main restricted universe multiverse
deb http://ftp.iinet.net.au/pub/ubuntu/ hardy-backports main restricted universe multiverse
deb http://ftp.iinet.net.au/pub/ubuntu/ hardy-proposed main restricted universe multiverse

#传说中的上海交通大学，最热门的源之一
deb http://ftp.sjtu.edu.cn/Ubuntu/ hardy main multiverse restricted universe
deb http://ftp.sjtu.edu.cn/Ubuntu/ hardy-backports main multiverse restricted universe
deb http://ftp.sjtu.edu.cn/Ubuntu/ hardy-proposed main multiverse restricted universe
deb http://ftp.sjtu.edu.cn/Ubuntu/ hardy-security main multiverse restricted universe
deb http://ftp.sjtu.edu.cn/Ubuntu/ hardy-updates main multiverse restricted universe
deb http://ftp.sjtu.edu.cn/Ubuntu-cn/ hardy main multiverse restricted universe
deb-src http://ftp.sjtu.edu.cn/Ubuntu/ hardy main multiverse restricted universe
deb-src http://ftp.sjtu.edu.cn/Ubuntu/ hardy-backports main multiverse restricted universe
deb-src http://ftp.sjtu.edu.cn/Ubuntu/ hardy-proposed main multiverse restricted universe
deb-src http://ftp.sjtu.edu.cn/Ubuntu/ hardy-security main multiverse restricted universe
deb-src http://ftp.sjtu.edu.cn/Ubuntu/ hardy-updates main multiverse restricted universe

#传说中的台湾大学 中国电信adsl 150k/s
deb http://Ubuntu.csie.ntu.edu.tw/ubuntu/ hardy main restricted universe multiverse
deb http://Ubuntu.csie.ntu.edu.tw/ubuntu/ hardy-backports restricted universe multiverse
deb http://Ubuntu.csie.ntu.edu.tw/ubuntu/ hardy-proposed main restricted universe multiverse
deb http://Ubuntu.csie.ntu.edu.tw/ubuntu/ hardy-security main restricted universe multiverse
deb http://Ubuntu.csie.ntu.edu.tw/ubuntu/ hardy-updates main restricted universe multiverse
deb-src http://Ubuntu.csie.ntu.edu.tw/ubuntu/ hardy main restricted universe multiverse
deb-src http://Ubuntu.csie.ntu.edu.tw/ubuntu/ hardy-backports main restricted universe multiverse
deb-src http://Ubuntu.csie.ntu.edu.tw/ubuntu/ hardy-proposed main restricted universe multiverse
deb-src http://Ubuntu.csie.ntu.edu.tw/ubuntu/ hardy-security main restricted universe multiverse
deb-src http://Ubuntu.csie.ntu.edu.tw/ubuntu/ hardy-updates main restricted universe multiverse

Ubuntu 官方源 推荐北方网通用户添加
deb http://archive.ubuntu.com/ubuntu/ hardy main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ hardy-security main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ hardy-updates main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ hardy-proposed main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ hardy-backports main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ hardy main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ hardy-security main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ hardy-updates main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ hardy-proposed main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ hardy-backports main restricted universe multiverse

台湾的官方源速度也相当不错，有时甚至快于内地的：
deb http://tw.archive.ubuntu.com/ubuntu hardy main restricted universe multiverse
deb http://tw.archive.ubuntu.com/ubuntu hardy-security main restricted universe multiverse
deb http://tw.archive.ubuntu.com/ubuntu hardy-updates main restricted universe multiverse
deb http://tw.archive.ubuntu.com/ubuntu hardy-backports main restricted universe multiverse
deb http://tw.archive.ubuntu.com/ubuntu hardy-proposed main restricted universe multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu hardy main restricted universe multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu hardy-security main restricted universe multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu hardy-updates main restricted universe multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu hardy-backports main restricted universe multiverse
deb-src http://tw.archive.ubuntu.com/ubuntu hardy-proposed main restricted universe multiverse