install universal media server on ubuntu server 12.04

The 'Server' CD avoids including what Ubuntu considers desktop packages (packages like X, Gnome or KDE), but does include server related packages (Apache2, Bind9 and so on). The first difference is in the CD contents.What's the difference between desktop and server? But I *really* need to enable the root account! How do I?.I need a root account in case of a network failure.Why doesn't Ubuntu provide a root account by default?.How do I install 'tasks' after the installer has run?.What are the differences between the server and virtual kernels?.

Do I have to choose the kernel for my system on my own?.Are there also server images for other hardware architectures?.

What's the difference between the kernels linux-image-server and linux-image-generic? What architecture is linux-image-server? Which one should I use?.

Which kernel versions or types are available on the Ubuntu Server CD?.

Is a dedicated SMP kernel available from the Ubuntu Server installation CD?.

How does the package system (apt) know what to install or update (server or desktop packages)?.

Are there different repositories for desktop and server?.

What virtualization technologies are supported?.

Does the Ubuntu Server support software RAID?.

What happens if I install packages that are not supported? Are there security patches for five years for those packages also?.

What packages and repositories are maintained (supported)?.

Where can I find a list of packages included with Ubuntu Server?.

What is the maintenance period of my server?.

How do I tell if my question is Ubuntu Server related?.

When will new versions of Ubuntu Server be released?.Where can I find the Ubuntu Server Edition CD images?.Can I add a 'graphical user interface' (GUI) to a server?.What's the difference between desktop and server?.Frequently Asked Questions about the Ubuntu Server Edition.

Install universal media server on ubuntu server 12.04