ChromiumOS - Vanilla (USB bootable)

Vanilla builds are bleeding edge. They give you the opportunity to see and use the latest and greatest that Chromium OS has to offer. Requires only a 4GB USB drive (download size is around 250MB).

ChromiumOS is a lightweight, lightning-fast operating system for your netbook, laptop or even desktop. With the familiar environment of Chromium/Chrome, the entire web is at your fingertips in seconds. HTML5 is fully supported, allowing you to enjoy the very best that the web has to offer.

Instructions on how to install: 

Download location: http://chromeos.hexxeh.net/
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There is also the "Lime" version of Chrome OS and here are the differences (explained at: http://superuser.com/questions/432644/what-is-the-difference-between-chromium-os-lime-and-vanilla-builds, at 26th of March 2013):

QUESTION:

AFAIK, Hexxeh is the only public, stable build server for Chromium OS, but he offers two builds, Vanilla and Lime.

The only explanation for this duality that I can find on his site is that Lime includes extra "Hardware Support". How can I decide if I need Vanilla or Lime? Are there any down-sides to Lime?


ANSWER:

The Lime build includes extra hardware support and removes the requirement for PAE. The site you linked to displays a list of hardware that it adds support for, so if you have one of those, then you should get Lime, otherwise Vanilla should suffice.

PAE lets 32-bit processors to access more than 4GB of RAM. Vanilla requires PAE to function which limits it to devices that support that, but Lime doesn't force it, so you can use it on more devices.

Lime is best for newer systems that have hardware that Vanilla does not yet support (or even know about). Plus, Lime gets updated more frequently because if you have hardware that it doesn't support, you can contact Hexxeh to have him add support.

If your processor does not support PAE, then you must use Lime since Vanilla won't work on it. If your system does have PAE, but the hardware is somewhat old, then Vanilla will likely work.

Essentially, Lime is cutting-edge (i.e., beta) while Vanilla is the stable release. Frankly, you may as well use Lime in general unless you don't want to/may not use beta software and want/have to use a stable build.