How to install Ubuntu into a predefined partition on a single disk, i have 3 partition on it

yes is possible and is easy to do, but to get better help,

please boot your pc from the Ubuntu live install cd and select to try Ubuntu, then open a terminal from applications→acessories→Terminal and type:

sudo fdisk -l

copy and paste back here the result

what OS runs your multi media partitions? I guess I'm a little confused obviously you have a base OS running already. What OS did u use to create ur current partitions?

Its simple. Download the latest Ubuntu ISO file depending upon your processor 32 or 64 bit> save this file on two locations> now start with the duplicate copy of ISO file in other drive(You want to install ubuntu in C drive so do this process in F,D drive)>unzip it with WinRar software in one folder> after unzipping you will see file folders> Search for Wubi.exe> connect to internet> run Wubi.exe> it will indicate the parameters to fill, like size of disk to be alloted for ubuntu, drive to be use , user name, password etc> fill up and note these info on a page to keep record> click to install> it will download few KB file and then indicate the completion of process> It will ask you to restart>save your work and restart>upon restart you will get ubuntu on the boot up screen> select it by up and down keys> wait for some time and it will install your ubuntu>it will ask for the username and password> log in.

Now you are in ubuntu.
Next connect to internet and download the updates, Ubuntu Restricted Extra, Wine and other softwares from Ubuntu Software Center.

IF any problem discuss here.

I am assuming that you have Windows preinstalled, so that you can assess both Wubi.exe and Internet to set up Ubuntu.
Other wise, you have to erase on extra drive to install it using live cd/live usb drive.

You have 3 solutions:
1) Virtual Machine
Install Virtual Box in Windows, download 32bits ISO image of Ubuntu, build a virtual machine and link ISO image to it, then boot this virtual machine. This method is 100% sure, but you will have to boot Windows to access Ubuntu and a little loss of performance (be careful, you will need to dedicate 256MB of physical RAM to virtual machine)
2) Wubi
The solution I dislike, but perhaps for bad reason. The Ubuntu file system will be installed in your Windows disk, but your Windows boot sector will be replaced by Grub boot loader. I think you get potential issues of both other solutions
3) True dual boot
You need to boot on Ubuntu CD, with option "Try", then System->Administration->Gparted.
After you will have to reduce/shift your three Windows partitions, to make space for an extended fourth partition, of at least 8GB.
Then install Ubuntu, and on partitioning page, ask to use free space (and not whole disk).
You will have the full performance of Ubuntu, but MBR will launch Grub boot loader instead of Windows boot loader.

it says it cant load -1 is that negitive 1 or dash 1?

--- On Tue, 9/21/10, marcobra (Marco Braida) <email address hidden> wrote:

From: marcobra (Marco Braida) <email address hidden>
Subject: Re: [Question #126367]: install on 1 disk
To: <email address hidden>
Date: Tuesday, September 21, 2010, 11:01 PM

Your question #126367 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/126367

    Status: Open => Needs information

marcobra (Marco Braida) requested for more information:
yes is possible and is easy to do, but to get better help,

please boot your pc from the Ubuntu live install cd and select to try
Ubuntu, then open a terminal from applications→acessories→Terminal and
type:

sudo fdisk -l

copy and paste back here the result

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i used partition master pro

--- On Wed, 9/22/10, Barbara Middendorf <email address hidden> wrote:

From: Barbara Middendorf <email address hidden>
Subject: Re: [Question #126367]: install on 1 disk
To: <email address hidden>
Date: Wednesday, September 22, 2010, 12:02 AM

Your question #126367 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/126367

Barbara Middendorf requested for more information:
what OS runs your multi media partitions?  I guess I'm a little confused
obviously you have a base OS running already.  What OS did u use to
create ur current partitions?

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/home/ubuntu/Desktop/fdisk

--- On Wed, 9/22/10, delance <email address hidden> wrote:

From: delance <email address hidden>
Subject: Re: [Question #126367]: install on 1 disk
To: <email address hidden>
Date: Wednesday, September 22, 2010, 9:37 AM

Your question #126367 on ubiquity changed:
https://answers.launchpad.net/ubiquity/+question/126367

    Status: Open => Answered

delance proposed the following answer:
Marco Braida asked
   sudo fdisk -l
where "-l" is lower case "-L"
--------------
Please, don't answer with previous message included, as it makes Launchpad thread unreadable.

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Thanks delance, that solved my question.