Customizing Ubuntu Mini Remix
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To download Ubuntu Mini Remix 12.04 Click Here
Customization
To modify Ubuntu Mini Remix, download a customization utility, such as UCK, Customizer or Reconstructor. UCK and Customizer are free, open-source disk image customizers, while Reconstructor costs $5 for unlimited use, as of September 2011. These programs work by extracting the contents of the live CD, then allowing you to add programs and other information. When you finish, the customization utility repacks the live CD, allowing you to run Ubuntu Mini Remix directly from it or install the OS to your computer.
Source: http://www.ehow.com/info_12080100_ubuntu-mini-remix.html