Installing Virtualbox on Backtrack 5 R2 from deb files

I'm going to show you how to install virtualbox on Backtrack 5 R2 from binary files or .deb files. As we know that Backtrack 5 is a distribution based on the Debian GNU/Linux (Ubuntu 10.04 LTS).

Step 1:
You have to download files as shown below:

dkms_2.1.1.2-3ubuntu1_all.deb
fakeroot_1.14.4-1ubuntu1_i386.deb
libaudio2_1.9.2-3_i386.deb
libmng1_1.0.10-1_i386.deb
libqt4-dbus_4.7.0-0ubuntu4_i386.deb
libqt4-network_4.7.0-0ubuntu4_i386.deb
libqt4-opengl_4.7.0-0ubuntu4_i386.deb
libqt4-xml_4.7.0-0ubuntu4_i386.deb
libqtcore4_4.7.0-0ubuntu4_i386.deb
libqtgui4_4.7.0-0ubuntu4_i386.deb
libvncserver0_0.9.7-2_i386.deb
patch_2.6-2ubuntu1_i386.deb

You can download from http://repo.ugm.ac.id/apt-web. 

Important :
Please don't download these files :
virtualbox-ose_3.1.6-dfsg-2uebuntu2_i386.deb
virtualbox-ose-dkms_3.1.6-dfsg-2ubuntu2.ll.deb
virtualbox-ose-qt_3.1.6-dfsg-2ubuntu2_i386.deb 


Step 2 
Download the latest version of VirtualBox for Linux host (10.04LTS i386 architecture) from official site here.

Step 3
Move all files into one folder, for example, /usr/src/virtualbox/. From your terminal window, just type the following command :

root@bt:~# cd /usr/src/virtualbox/

Step 4

Ok, now install all files :

root@bt:/usr/src/virtualbox# dpkg -i *.deb

Step 5
After you have successfully installed VirtualBox, you can start from GNOME menu > Applications > System Tools > Oracle VM VirtualBox

Congratulations !!.