Instalasi Virtual Box tanpa ada error pada Backtrack 5

Buat teman-teman yang menggalami error saat melakukan instalasi Virtual Box pada Backtrack 5, maka cobalah cara yang dibawah ini,

1. Download Virtual Box di sini
2. Kemudian Lakukan Instalasi seperti dibawah ini :

root@bt:~/Downloads# ./VirtualBox-4.0.10-72479-Linux_x86.run 
bash: ./VirtualBox-4.0.10-72479-Linux_x86.run: Permission denied 
root@bt:~/Downloads# chmod +x VirtualBox-4.0.10-72479-Linux_x86.run 
root@bt:~/Downloads# ./VirtualBox-4.0.10-72479-Linux_x86.run 
Verifying archive integrity... All good. 
Uncompressing VirtualBox for Linux installation........... 
VirtualBox Version 4.0.10 r72479 (2011-06-24T13:43:27Z) installer 
Installing VirtualBox to /opt/VirtualBox 
tar: Record size = 8 blocks 
Python found: python, installing bindings... 
Building the VirtualBox kernel modules 

VirtualBox has been installed successfully. 

You will find useful information about using VirtualBox in the user manual 
/opt/VirtualBox/UserManual.pdf 
and in the user FAQ 
http://www.virtualbox.org/wiki/User_FAQ 

We hope that you enjoy using VirtualBox.

Semoga dapat membantu.