原文地址：http://crunchbang.org/forums/viewtopic.php?pid=277918
因为64位debian源中并没有包括32位的软件包，所提安装ia32会提示依赖无法解决之类的问题，下面是解决方法
# dpkg --add-architecture i386 //添加386支持(个人理解哈)
编辑/etc/apt/source.list
在每个deb源中添加
[arch=amd64,i386]
添加后的效果是这样的
deb [arch=amd64,i386] http://mirrors.163.com/debian wheezy main non-free contrib deb [arch=amd64,i386] 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 [arch=amd64,i386] 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
更新缓存
#apt-get update
然后安装就OK了