installation process of VirtualBox on a fresh centos5.5 server.
The installation of VirtualBox will require the building of kernel modules.
If the development environment and kernel source are not already installed:
Install the necessary tools, just issue the following command from command prompt, you must have root privilege for this.
#yum groupinstall “Development Tools”
#yum install kernel-devel
Download the rpm from VirtualBox.org Site
Install the VirtualBox
#rpm -Uvh VirtualBox-3.2-3.2.0_61806_rhel5-1.i386.rpm
This will install the VirtualBox into the system
We need to assign user to vboxusers group which is created by the installation now who will run VirtualBox
#usermod -G vboxusers username
Run the VirtualBox
Now from GNOME or KDE run under “Applications / System Tools / Sun xVM VirtualBox” and start using it.