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Ubuntu JeOS 7.10，JeOS，即──Just enough Operation System（刚刚好的系统），发音同：Juice，是一个高度精简的、专门面向虚拟化应用的发行版。

短短一句话，大家应该都明白是怎么回事了吧？

随着虚拟化技术应用的越来越广泛，Ubuntu抓住这个机遇，适时推出JeOS，真是生的逢时啊。

在虚拟化应用时，人们常常会自己去定制一个足够精简又高效的系统。而现在Ubuntu JeOS已经做好了这一切，除了非常精简以外，还为VMware等虚拟机进行了优化。

目前为止，Ubuntu JeOS 7.10只有For x86（32位）系统的镜像，可以在下面的地址下载，只有151MB！还不快去下载研究研究~

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以下内容来自官方网站:

VMWORLD/SAN FRANCISCO, Calif. – September 11, 2007 – Canonical Ltd., the commercial sponsor of Ubuntu, today announced the availability of its Ubuntu JeOS (Just Enough Operating System) edition.

Ubuntu JeOS (pronounced "Juice") is an efficient variant of the popular desktop and server operating system, configured specifically for virtual appliances.

"The efficiencies inherent in an operating system that is built for a virtualised world mean that ISVs looking to deploy their applications in this lucrative and growing market have an obvious deployment target in the Ubuntu JeOS Edition," said Stephen O'Grady, analyst at RedMonk. "As the delivery platforms and economics of licensing continue to change, the flexibility and reach of the Ubuntu operating system make it an increasingly popular choice for far sighted ISVs."

ISVs looking to develop virtual appliances will have a compelling platform in Ubuntu JeOS, an OS optimised for virtualisation that greatly reduces the complexity and maintenance overhead normally associated with general purpose operating systems. Ubuntu JeOS Edition has been tuned to take advantage of key performance technologies of the latest virtualisation products from VMware. This combination of reduced size and optimized performance ensures that Ubuntu JeOS Edition delivers a highly efficient use of server resources in large virtual deployments.

"Canonical has produced a robust virtualised OS core in the Ubuntu JeOS Edition that is optimized for virtual appliances," said Dan Chu, vice president of emerging products and markets at VMware. "Virtual Appliances are fundamentally changing how software is developed and deployed, with ISVs now including a thin and highly optimized OS along with their application in a ready-to-run virtual machine. We are excited that Canonical is providing Ubuntu JeOS for vendors interested in building VMware virtual appliances."

Business Objects today unveiled a virtual appliance based on Ubuntu JeOS that is being demonstrated at VMworld.

"Ubuntu fits naturally into the place where computing is happening today," said Mark Shuttleworth, founder of the Ubuntu Project. "Virtualisation is the key driver of data center restructuring at present, and Ubuntu's popularity with developers makes it an excellent choice for the next generation of virtualized environments. We have worked with VMware to deliver a version of Ubuntu that complements its exceptional virtualisation capabilities, providing a solution for the ISVs building virtual appliances and for the enterprises planning to deploy them."

About Canonical and Ubuntu

Canonical, the commercial sponsor of Ubuntu, is headquartered in Europe and is committed to the development, distribution and support of open source software products and communities. World-class 24x7 commercial support for Ubuntu is available through Canonical's global support team and partners. Since its launch in October 2004 Ubuntu has become one of the most highly regarded Linux distributions with millions of users around the world. Ubuntu will always be free to download, free to use and free to distribute to others. With these goals in mind, Ubuntu aims to be the most widely used Linux system, and is the centre of a global open source software ecosystem. For more information visit www.canonical.com or www.ubuntu.com.