|The power of Virtualization..., Ubuntu running in Windows 7|
Just like that with Virtualbox, developed by GmbH (the developer of Avira antivirus) now owned by Sun Microsystems, it can be used on not just in GNU/Linux but in Windows and Mac OSX, Solaris, etc. With the help of Virtualbox 4 you can easily run Windows 7 or XP in GNU/Linux as well.
Although not just for home users, through virtualization large companies/Business have a lot of benefits in general where you can allow the users to run several desktops on top of each other without having to buy PC after PC or without having to do a dual boot, etc thus it saves both cost and time.
Anyhow, if you have installed the Ubuntu 11.04 Natty Narwhal and want to know how to install Virtualbox 4, then please follow the below steps.
1. First issue the below command.
gksudo gedit /etc/apt/sources.list2. Now add the below text to the opened file (just paste it).
deb http://download.virtualbox.org/virtualbox/debian natty contribRemember to save the file before closing.
3. Enter the below command.
wget -q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc -O- | sudo apt-key add -4. Use these commands next.
sudo apt-get update5. Now let's update to the version 4x by using the next command.
sudo apt-get install virtualbox-4.06. You may also want to install the dkms packages via the below command.
sudo apt-get install dkmsThat's it. Now you should have the Virtualbox 4x installed in Ubuntu 11.04.