First download the .iso file here android-x86 http://code.google.com/p/android-x86/downloads/list
UNetbootin install it through Ubuntu Software Center or you can download it here http://unetbootin.sourceforge.net/
- Android-x86 - all versions
- How to Develop and Evaluate 64-bit Android Apps on Intel x86 Platforms
- VirtualBox Images for Android-x86
- Using Android-X86 as an Emulator in Hyper-V for Windows
- How to Install and Run Android 4.4 KitKat alongside Windows ?
- Install “Android 4.4 KitKat” to Run Favourite Games and Applications in Linux