I have downloded the Ubuntu Netbook 10.10 ISO file. When I mount it on a Virtual drive it gives me the option to install it via CD(restart and boot from disc) or use the WUBI installer. The [WUBI installer](http://en.wikipedia.org/wiki/Wubi_%28Ubuntu_installer%29) warns about poor disc performance. There is a way to convert the WUBI installed Ubuntu into a dedicated partition Ubuntu installation via [LVPM](http://lubi.sourceforge.net/lvpm.html). The [Official Guide](https://wiki.ubuntu.com/WubiGuide) links to a how-to for 7.04/7.10/8.10, whereas the [forum](http://ubuntuforums.org/showthread.php?t=438591) says

> 
> LVPM currently does not work with
>  installs generated by Wubi 10.04
>  (patches welcome).
> 
> 
> 

So the status about 10.10 is unknown. Plus even if LVPM does work, it has the problem of [wiping the partition](http://ubuntuforums.org/showthread.php?t=438591) on which it is going to be installed. 

Is there a way to install Ubuntu without using a USB/CD? yes -> WUBI

Is there a way to install a *normal* Ubuntu installation using WUBI? yes -> LVPM

But LVPM needs a clean partition.

Can I install Ubuntu into an existing logical partition without having to lose or move my files in advance to another partition with or without the WUBI method?

(My Netbook:
Primary Partition(40GB): WinXP Home(Free Space 3GB)
Logical Partition(100GB): Data(Free Space ~10GB)
)

**I have seen some programs like Norton Ghost, Partition Magic etc. boot into a different environment to format or restore hdds from WinXP(after restarting). Can't a installer do something similar and boot into a Ubuntu installer environment?**

I have been through this [Is it possible to install without a CD or USB drive?](https://askubuntu.com/questions/915/is-it-possible-to-install-ubuntu-without-a-cd-or-usb-drive) 

(I had asked this question on <https://superuser.com/questions/215661/install-ubuntu-netbook-10-10-without-cd-usb-wubi-from-hdd-on-winxp> but since this looks like a better place I am posting it here.)