The package architecture has to match the Linux kernel architecture, that is, if you are running a 64bit kernel, install the appropriate AMD64 package (it does not matter if you have an Intel or an AMD CPU). Mixed installations (e.g. Debian/Lenny ships an AMD64 kernel with 32bit packages) are not supported. To install VirtualBox anyway you need to setup a 64bit chroot environment>
VirtualBox支持Windows、Linux和Mac系统主机，可虚拟的系统包括Windows (NT 4.0、2000、SP、Server 2003、Vista)、DOS/Windows 3.x、Linux (2.4和2.6)、OpenBSD等。自VirtualBox 4.1开始，这款免费的开源虚拟机开始支持克隆虚拟机，对GUI界面也进行了完善，并且将64位主机的内存限制提高到了1TB，支持Direct3D，支持SATA硬盘的热插拔……另外，Windows版VirtualBox 4.1.2及其之后版本均支持虚拟Windows 8。
