ubuntu如何添加源和更新软件列表

1.sudo cp /etc/apt/sources.list /etc/apt/sources.list_backup    备份更新源设置

2.sudo gedit /etc/apt/sources.list
编辑你的源列表，将原来的内容全部删除，添加下面列表中最适合你的源（注意不要全部添加），选择一个最合适你的即可，复制到你的列表中，然后保存列表。

3.sudo apt-get update 更新源列表信息
可以在运行“sudo apt-get update ”时查看一下错误信息，把不能连接的源删除再重新运行“sudo apt-get update ”。

4.sudo apt-get upgrade  升级

# 以下来自http://wiki./index.php?title=Template:9.10source&variant=zh-cn
# 台湾的官方源速度也相当不错，有时甚至快于内陆的：
deb http://tw.archive./ubuntu karmic main restricted universe multiverse
deb http://tw.archive./ubuntu karmic-security main restricted universe multiverse
deb http://tw.archive./ubuntu karmic-updates main restricted universe multiverse
deb http://tw.archive./ubuntu karmic-backports main restricted universe multiverse
deb http://tw.archive./ubuntu karmic-proposed main restricted universe multiverse
deb-src http://tw.archive./ubuntu karmic main restricted universe multiverse
deb-src http://tw.archive./ubuntu karmic-security main restricted universe multiverse
deb-src http://tw.archive./ubuntu karmic-updates main restricted universe multiverse
deb-src http://tw.archive./ubuntu karmic-backports main restricted universe multiverse
deb-src http://tw.archive./ubuntu karmic-proposed main restricted universe multiverse

# 中国台湾 台湾大学更新服务器（推荐网通用户使用，电信PING平均响应速度41MS。强烈推荐此源，比较完整，较少出现同步问题）：
deb http://ubuntu.csie./ubuntu/ karmic main restricted universe multiverse
deb-src http://ubuntu.csie./ubuntu/ karmic main restricted universe multiverse
deb http://ubuntu.csie./ubuntu/ karmic-updates main restricted universe multiverse
deb-src http://ubuntu.csie./ubuntu/ karmic-updates main restricted universe multiverse
deb http://ubuntu.csie./ubuntu/ karmic-backports main restricted universe multiverse
deb-src http://ubuntu.csie./ubuntu/ karmic-backports main restricted universe multiverse
deb http://ubuntu.csie./ubuntu/ karmic-security main restricted universe multiverse
deb-src http://ubuntu.csie./ubuntu/ karmic-security main restricted universe multiverse
deb http://ubuntu.csie./ubuntu/ karmic-proposed main multiverse restricted universe
deb-src http://ubuntu.csie./ubuntu/ karmic-proposed main restricted universe multiverse

# 网易163更新服务器：
deb http://mirrors.163.com/ubuntu/ karmic main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ karmic-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ karmic-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ karmic-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ karmic-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ karmic main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ karmic-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ karmic-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ karmic-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ karmic-backports main restricted universe multiverse

# sohu 更新服务器：
deb http://mirrors.sohu.com/ubuntu/ karmic main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ karmic-security main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ karmic-updates main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ karmic-proposed main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ karmic-backports main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ karmic main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ karmic-security main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ karmic-updates main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ karmic-proposed main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ karmic-backports main restricted universe multiverse

# 骨头兄亲自搭建并维护这个Ubuntu源（该源位于浙江杭州百兆共享宽带的电信机房)：
deb http://ubuntu./ubuntu/ karmic main restricted universe multiverse
deb http://ubuntu./ubuntu/ karmic-security main restricted universe multiverse
deb http://ubuntu./ubuntu/ karmic-updates main restricted universe multiverse
deb http://ubuntu./ubuntu/ karmic-proposed main restricted universe multiverse
deb http://ubuntu./ubuntu/ karmic-backports main restricted universe multiverse
deb-src http://ubuntu./ubuntu/ karmic main restricted universe multiverse
deb-src http://ubuntu./ubuntu/ karmic-security main restricted universe multiverse
deb-src http://ubuntu./ubuntu/ karmic-updates main restricted universe multiverse
deb-src http://ubuntu./ubuntu/ karmic-proposed main restricted universe multiverse
deb-src http://ubuntu./ubuntu/ karmic-backports main restricted universe multiverse
deb http://mirror./ubuntu/ubuntu-cn karmic main restricted universe multiverse

# Archive.更新服务器（欧洲，此为官方源，电信网通用户使用)：
deb http://archive./ubuntu/ karmic main restricted universe multiverse
deb http://archive./ubuntu/ karmic-security main restricted universe multiverse
deb http://archive./ubuntu/ karmic-updates main restricted universe multiverse
deb http://archive./ubuntu/ karmic-proposed main restricted universe multiverse
deb http://archive./ubuntu/ karmic-backports main restricted universe multiverse
deb-src http://archive./ubuntu/ karmic main restricted universe multiverse
deb-src http://archive./ubuntu/ karmic-security main restricted universe multiverse
deb-src http://archive./ubuntu/ karmic-updates main restricted universe multiverse
deb-src http://archive./ubuntu/ karmic-proposed main restricted universe multiverse
deb-src http://archive./ubuntu/ karmic-backports main restricted universe multiverse

# Mirrors.shlug.org更新服务器（电信服务器，Ubuntu China Official Mirror, maintained by Shanghai Linux User Group）：
deb http://cn.archive./ubuntu karmic main restricted universe multiverse
deb http://cn.archive./ubuntu karmic-security main restricted universe multiverse
deb http://cn.archive./ubuntu karmic-updates main restricted universe multiverse
deb http://cn.archive./ubuntu karmic-backports main restricted universe multiverse
deb http://cn.archive./ubuntu karmic-proposed main restricted universe multiverse
deb-src http://cn.archive./ubuntu karmic main restricted universe multiverse
deb-src http://cn.archive./ubuntu karmic-security main restricted universe multiverse
deb-src http://cn.archive./ubuntu karmic-updates main restricted universe multiverse
deb-src http://cn.archive./ubuntu karmic-backports main restricted universe multiverse
deb-src http://cn.archive./ubuntu karmic-proposed main restricted universe multiverse

# Mirror.更新服务器（浙江省杭州市双线服务器）：
deb http://mirror./ubuntu karmic main restricted universe multiverse
deb http://mirror./ubuntu karmic-security main restricted universe multiverse
deb http://mirror./ubuntu karmic-updates main restricted universe multiverse
deb http://mirror./ubuntu karmic-backports main restricted universe multiverse
deb http://mirror./ubuntu karmic-proposed main restricted universe multiverse
deb-src http://mirror./ubuntu karmic main restricted universe multiverse
deb-src http://mirror./ubuntu karmic-security main restricted universe multiverse
deb-src http://mirror./ubuntu karmic-updates main restricted universe multiverse
deb-src http://mirror./ubuntu karmic-backports main restricted universe multiverse
deb-src http://mirror./ubuntu karmic-proposed main restricted universe multiverse

ubuntu 10.04源

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