ubuntu 9.10 更新源

首先备份源列表 sudo cp /etc/apt/sources.list /etc/apt/sources.list_backup

而后用gedit或其他编辑器打开:

gksu gedit /etc/apt/sources.list
kdesu kate /etc/apt/sources.list  
gksu monmfnmusepad /etc/apt/sources.list
gksu gedit /etc/apt/sources.list

1.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。

2.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 ”。

3.sudo apt-get upgrade  升级

或者用ubuntu自带的更新管理器升级也可

台湾
代码:


 deb  karmic main universe restricted multiverse
 deb  karmic-updates universe main multiverse restricted
 deb  karmic-proposed universe main multiverse restricted
 deb  karmic-security universe main multiverse restricted
 deb  karmic-backports main multiverse restricted universe
 deb-src  karmic main universe restricted multiverse
 deb-src  karmic-security universe main multiverse restricted
 deb-src  karmic-updates universe main multiverse restricted
 deb-src  karmic-proposed universe main multiverse restricted
 deb-src  karmic-backports universe main multiverse restricted

SRT Sources
代码:


 deb  karmic main restricted universe multiverse
 deb  karmic-security main restricted universe multiverse
 deb  karmic-updates main restricted universe multiverse
 deb  karmic-proposed main restricted universe multiverse
 deb  karmic-backports main restricted universe multiverse
 deb-src  karmic main restricted universe multiverse
 deb-src  karmic-security main restricted universe multiverse
 deb-src  karmic-updates main restricted universe multiverse
 deb-src  karmic-proposed main restricted universe multiverse
 deb-src  karmic-backports main restricted universe multiverse


搜狐（速度很快，稍微不完整）

网易163的更新源

deb  karmic main restricted universe multiverse
deb  karmic-security main restricted universe multiverse
deb  karmic-updates main restricted universe multiverse
deb  karmic-proposed main restricted universe multiverse
deb  karmic-backports main restricted universe multiverse
deb-src  karmic main restricted universe multiverse
deb-src  karmic-security main restricted universe multiverse
deb-src  karmic-updates main restricted universe multiverse
deb-src  karmic-proposed main restricted universe multiverse
deb-src  karmic-backports main restricted universe multiverse

代码:


 deb  karmic main restricted
 deb-src  karmic main restricted
 deb  karmic-updates main restricted
 deb-src  karmic-updates main restricted
 deb  karmic universe
 deb-src  karmic universe
 deb  karmic-updates universe
 deb-src  karmic-updates universe
 deb  karmic multiverse
 deb-src  karmic multiverse
 deb  karmic-updates multiverse
 deb-src  karmic-updates multiverse

北京交通大学

代码:


 deb  karmic main multiverse restricted universe
 deb  karmic-backports main multiverse restricted universe
 deb  karmic-proposed main multiverse restricted universe
 deb  karmic-security main multiverse restricted universe
 deb  karmic-updates main multiverse restricted universe
 deb-src  karmic main multiverse restricted universe
 deb-src  karmic-backports main multiverse restricted universe
 deb-src  karmic-proposed main multiverse restricted universe
 deb-src  karmic-security main multiverse restricted universe
 deb-src  karmic-updates main multiverse restricted universe
马来西亚
代码:


 deb  karmic main restricted universe multiverse
 deb  karmic-security main restricted universe multiverse
 deb  karmic-updates main restricted universe multiverse
 deb  karmic-proposed main restricted universe multiverse
 deb  karmic-backports main restricted universe multiverse
 deb-src  karmic main restricted universe multiverse
 deb-src  karmic-security main restricted universe multiverse
 deb-src  karmic-updates main restricted universe multiverse
 deb-src  karmic-proposed main restricted universe multiverse
 deb-src  karmic-backports main restricted universe multiverse
江苏双线
代码:


 deb  karmic main restricted universe multiverse
 deb  karmic-security main restricted universe multiverse
 deb  karmic-updates main restricted universe multiverse
 deb  karmic-backports main restricted universe multiverse
 deb /ubuntu-cn karmic main restricted universe multiverse
 deb / karmic-proposed main restricted universe multiverse
 deb-src  karmic main restricted universe multiverse
 deb-src  karmic-security main restricted universe multiverse
 deb-src  karmic-updates main restricted universe multiverse
 deb-src  karmic-backports main restricted universe multiverse
 deb-src / karmic-proposed main restricted universe multiverse
 
日本
代码:


 deb  karmic main universe restricted multiverse
 deb http://security.ubuntu.com/ubuntu/ karmic-security universe main multiverse restricted
 deb  karmic-updates universe main multiverse restricted
 deb  karmic-proposed universe main multiverse restricted
 deb-src  karmic main universe restricted multiverse
 deb-src  karmic-proposed universe main multiverse restricted
 deb-src  karmic-security universe main multiverse restricted
 deb-src  karmic-updates universe main multiverse restricted

sudo aptitude update #更新列表

sudo aptitude upgrade #更新系统