ubuntu8.04 apt源

（亲自试过非常好用 而且没有错误！！！）

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

2 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 mousepad /etc/apt/sources.list
 gksu gedit /etc/apt/sources.list

注意：一定要选对版本 这个是8.04的源

deb hardy main restricted universe multiverse

deb hardy-security main restricted universe multiverse

deb hardy-updates main restricted universe multiverse

deb hardy-proposed main restricted universe multiverse

deb hardy-backports main restricted universe multiverse

deb-src hardy main restricted universe multiverse

deb-src hardy-security main restricted universe multiverse

deb-src hardy-updates main restricted universe multiverse

deb-src hardy-proposed main restricted universe multiverse

deb-src hardy-backports main restricted universe multiverse

deb hardy main restricted universe multiverse

deb hardy-security main restricted universe multiverse

deb hardy-updates main restricted universe multiverse

deb hardy-backports main restricted universe multiverse

deb hardy-proposed main restricted universe multiverse

deb-src hardy main restricted universe multiverse

deb-src hardy-security main restricted universe multiverse

deb-src hardy-updates main restricted universe multiverse

deb-src hardy-backports main restricted universe multiverse

deb-src hardy-proposed main restricted universe multiverse

deb hardy main restricted universe multiverse

deb hardy-security main restricted universe multiverse

deb hardy-updates main restricted universe multiverse

deb hardy-proposed main restricted universe multiverse

deb hardy-backports main restricted universe multiverse

deb-src hardy main restricted universe multiverse

deb-src hardy-security main restricted universe multiverse

deb-src hardy-updates main restricted universe multiverse

deb-src hardy-proposed main restricted universe multiverse

deb-src hardy-backports main restricted universe multiverse

3然后，刷新
sudo apt-get update

同时可以升级系统
apt-get dist-upgrade

一切OK了