今天装了Linux Mint Debian发行版，安装后换了163的squeeze源，发现好多软件包在安装时会报错“破损的安装包”，说我的系统是unstable的，而且sudo apt-get upgrade竟然只下载了几兆的东西，这太奇怪了，之前都是下载几百兆的啊。
到官网看文档才知道Mint的Debian是基于testing的，可是163的说明里也说了源是包括testing的，怎么会不行呢？经过摸索才发现，只要把里面的squeeze换成testing的源（wheezy源）就可以了：
deb http://mirrors.163.com/debian wheezy main non-free contrib
deb http://mirrors.163.com/debian wheezy-proposed-updates main contrib non-free
deb-src http://mirrors.163.com/debian wheezy main non-free contrib
deb-src http://mirrors.163.com/debian wheezy-proposed-updates main contrib non-free
deb http://mirrors.163.com/debian-security wheezy/updates main contrib non-free
deb-src http://mirrors.163.com/debian-security wheezy/updates main contrib non-free
deb http://http.us.debian.org/debian wheezy main contrib non-free
deb http://non-us.debian.org/debian-non-US wheezy/non-US main contrib non-free
deb http://security.debian.org wheezy/updates main contrib non-free
现在再试试：
sudo apt-get update
sudo apt-get upgrade
哈哈，这就对了。再试试之前不支持的包：
OK，也支持了！
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