主意博客

第一枚
deb http://debian.ustc.edu.cn/ubuntu natty main restricted universe multiverse
deb-src http://debian.ustc.edu.cn/ubuntu natty main restricted universe multiverse
deb http://debian.ustc.edu.cn/ubuntu natty-security main restricted universe multiverse
deb-src http://debian.ustc.edu.cn/ubuntu natty-security main restricted universe multiverse
deb http://debian.ustc.edu.cn/ubuntu natty-updates main restricted universe multiverse
deb-src http://debian.ustc.edu.cn/ubuntu natty-updates main restricted universe multiverse
deb http://debian.ustc.edu.cn/ubuntu natty-proposed main restricted universe multiverse
deb-src http://debian.ustc.edu.cn/ubuntu natty-proposed main restricted universe multiverse
deb http://debian.ustc.edu.cn/ubuntu natty-backports main restricted universe multiverse
deb-src http://debian.ustc.edu.cn/ubuntu natty-backports main restricted universe multiverse

第二枚
deb ftp://ftp.usf.edu/pub/ubuntu natty main restricted universe multiverse
deb-src ftp://ftp.usf.edu/pub/ubuntu natty main restricted universe multiverse
deb ftp://ftp.usf.edu/pub/ubuntu natty-security main restricted universe multiverse
deb-src ftp://ftp.usf.edu/pub/ubuntu natty-security main restricted universe multiverse
deb ftp://ftp.usf.edu/pub/ubuntu natty-updates main restricted universe multiverse
deb-src ftp://ftp.usf.edu/pub/ubuntu natty-updates main restricted universe multiverse
deb ftp://ftp.usf.edu/pub/ubuntu natty-proposed main restricted universe multiverse
deb-src ftp://ftp.usf.edu/pub/ubuntu natty-proposed main restricted universe multiverse
deb ftp://ftp.usf.edu/pub/ubuntu natty-backports main restricted universe multiverse
deb-src ftp://ftp.usf.edu/pub/ubuntu natty-backports main restricted universe multiverse

暂时收集了这两个，先用着。使用方法，
在终端执行命令：sudo gedit /etc/apt/sources.list 可以删除默认的ipv4源（有必要的话，另建议备份） ，将以上的两枚复制粘贴进去，然后保存 。