印象中国

针对/etc/apt/sources.list文件添加源，以下是163针对debian6.0的源，国内最快的源：
deb squeeze main non-free contrib
deb squeeze-proposed-updates main contrib non-free
deb-src squeeze main non-free contrib
deb-src squeeze-proposed-updates main contrib non-free
deb http://mirrors.163.com/debian-security squeeze/updates main contrib non-free
deb-src http://mirrors.163.com/debian-security squeeze/updates main contrib non-free

 
有时我们在/etc/apt/source.list添加了软件源，然后执行命令sudo apt-get update后会出现类似如下的错误,可以先执行如下命令：
gpg --keyserver pgpkeys.mit.edu --recv-key AED4B06F473041FA
gpg -a --export AED4B06F473041FA |  apt-key add -

 
然后使用如下命令更新列表,否则很多软件会在安装的时候解决不了依赖关系：
apt-get update

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