how to upgrade Ultimate edition 1.8 to 1.9

[uti]

Hi

I am new user and I am trying to upgrade to ultimate version 1.8 to 1.9

First of all I have the version 1.8 with all the system updates...

Now...
I down load the iso of 1.9, then I burned to a DVD disk and then I restart my computer from the dvd...
When I asked for upgrade then the system, then the system gave me a mesage that can't feisty basedhot system????

What is the write procedure so to make the up grades to the newest ultimate versions???

Thanks in advance...

[uti]

Hi again,

Nick, I would like to thank you for your answer, appreciate for your help...

I would like to ask you something else.
Why isn't possible to upgrade the versions instead to make a new clear set up for the newest ultimate ubuntu version???

Is so difficult to create an up date manager, so to upgrade to the newest versions, with out to transfer the files form the disk...
This will make the version very convenient to any new Ultimate Ubuntu user???

[pch.shot]

Different versions of any operating system do not play well with each other. Like Vista and Windows 98 for example. You would never try to install Vista on top of 98, would you!! A clean install is always the best way(re-format and install). It is never a good idea to install one operating system over the other. There are thousands of files you don't see that are interdependent on each other(and change from one version to the next) to make things simple for you.

[uti]

Hi!!!

I would like to thanks both of you for your answers.
I understand that any version is a brand new program, totally different in some of the add-ons programs that constitute...

So, for any time there is an available version, then we have to make from the begin the procedure...
OK....