108 Cloud Computing
Once the EULA is accepted, the
Custom Setup
screen will appear, as
shown below.
Here you can change the default settings, choosing where and how Vir-
tualBox will be installed. Usually, the defaults are satisfactory for installa-
tion. If you choose this option, all features will be installed.
In addition to the VirtualBox application, the components for USB sup-
port and networking are available. These packages contains special drivers for
your Windows host that VirtualBox requires to fully support networking and
USB devices in your virtual machine (VM). The networking package con-
tains extra networking drivers for your Windows host that VirtualBox needs
to support Host Interface Networking (to make your VM’s virtual network
cards accessible from other machines on your physical network).
Depending on your Windows configuration, you may see warnings
about “unsigned drivers” or similar messages. Select
Continue
on these
warnings, because otherwise VirtualBox may not function correctly after
installation. Click
Next >
to continue to the
Ready to Install
dialog box,
shown below.
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Installing Sun xVM VirtualBox 109
To start the installation process, just click
Install.
It may take a minute
or so for the installer to complete, depending on your system’s processor and
memory resources. You will see an installation progress dialog, similar to
this one:
On Microsoft Windows operating systems, you may see the
Software
Installation
dialog box shown below, warning you that the product you are
installing has not passed Windows Logo testing to verify its compatibility
with Windows XP. Click the
Continue Anyway
button to proceed.
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110 Cloud Computing
You will be notified when the installation has completed, and given the
opportunity to launch the application automatically. Be sure the box in the
following dialog is checked:
Click
Finish
to complete the installation process and continue. The
VirtualBox Registration Dialog
will appear:
Chap4.fm Page 110 Friday, May 22, 2009 11:25 AM
Installing Sun xVM VirtualBox 111
Registration is very simple, and it is recommended that you register
your product. Just fill in your name and an email address. Once the registra-
tion form has been completed, a
Confirm
button will appear. You can
choose to allow Sun to contact you or not by checking or unchecking the
box above the
Confirm
button. Once you have clicked
Confirm,
instant
kudos appear:
Click
OK
and you are rewarded with the initial display of the Sun
xVM VirtualBox product. For Microsoft Windows-based systems, the
installer will create a
VirtualBox
group in the Programs folder of the Start
menu, which will allow you to launch the application and access its docu-
mentation. If you choose later to uninstall this product, VirtualBox can be
safely uninstalled at any time by choosing the program entry in the
Add/
Remove Programs
applet in the Windows
Control Panel.
For non-Win-
dows operating systems, you must uninstall according to your system’s rec-
ommended procedures. However, let’s not do that yet! The following
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112 Cloud Computing
picture shows you what the opening screen looks like after you have
installed and filled out the product registration form:
4.4 Adding a Guest Operating System to VirtualBox
VirtualBox allows you to run
guest operating systems
using its own virtual
computer system, which is why it is called a “virtual machine.” The guest
system will run in its VM environment just as if it were installed on a real
computer. It operates according to the VM settings you have specified (we
will talk about settings a bit more later in this chapter). All software that
you choose to run on the guest system will operate just as it would on a
physical computer.
With the options available, you have quite a bit of latitude in deciding
what virtual hardware will be provided to the guest. The virtual hardware
you specify can be used to communicate with the host system or even with
other guests. For instance, if you provide VirtualBox with the image of a
CD-ROM in the form of an ISO file, VirtualBox can make this image avail-
able to a guest system just as if it were a physical CD-ROM. You can also
give a guest system access to the real network (and network shares) via its
virtual network card. It is even possible to give the host system, other guests,
or computers on the Internet access to the guest system.
4.5 Downloading FreeDOS as a Guest OS
For our first guest, we will be adding an open source operating system called
FreeDOS to the host machine. In order to do this, we must first go to the
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