Default Ubuntu dual boot (Maguro) simple installation

After the announcement of Ubuntu dual boot I visit their page
https://wiki.ubuntu.com/Touch/DualBootInstallation
(Please visit the page read it carefully to understand what I am talking about)
But I couldn’t understand how to do it under windows, so I open the dualboot.sh and took the link for Ubuntu Installer flashable zip and flash it through recovery.
http://humpolec.ubuntu.com/UPDATE-UbuntuInstaller.zip

I have Maguro with CM 11 4.4.2 installed (although not official “the one from Playfulgod”), with latest CWM recovery, and latest SuperSU installed. And of course opened boot loader…
After installing Ubuntu installer zip and booting to android you will find Ubuntu Dual Boot application, open it and hit install and that’s it. The installation may take more than 10 minutes…
After installation is complete you will have an app in Ubuntu to boot to android, and in android you have the app to boot to Ubuntu, uninstall it, or delete Ubuntu user data…
the first thing i noticed is when i set the time to GMT +3 it is changed in the setting but the clock in the indicators not updated, and of course it has the same lag in the previous Ubuntu touch builds if you know what I am talking about ( if you previously installed and try it ) so don't expect miracles with these developers builds and especially with Maguro specs..