'''Ubuntu JeOS''' (pronounced "juice") is a variant of [[Ubuntu (operating system)|Ubuntu]] that is described as "an efficient variant [...] configured specifically for [[virtual appliance]]s"."<ref>https://lists.ubuntu.com/archives/ubuntu-announce/2007-November/000106.html</ref><ref>{{cite web |url=https://help.ubuntu.com/10.04/serverguide/C/jeos-and-vmbuilder.html |title=Ubuntu 10.04 Server Guide}}</ref> It is's a concept for what an operating system should look like in the context of a virtual appliance.<ref>http://blogs.vmware.com/console/2007/07/get-juiced.html</ref> [[JeOS]] stands for "'''J'''ust '''e'''nough [[operating system|'''O'''perating '''S'''ystem]]."
Its first release was Ubuntu JeOS 7.10 (Gutsy Gibbon), and since the release of Ubuntu 8.10 it has been included as an option as part of the standard Ubuntu Server Edition.<ref>http://www.ubuntu.com/news/ubuntu-8.10-server</ref>
==Supported platforms==
The current version of JeOS is optimized for virtualisationvirtualization technologies by [[VMware|VMware, Inc.]] and the Linux [[Kernel-based Virtual Machine]].<ref name="JeOS: Ubuntu Server Edition">{{cite web |url=http://www.ubuntu.com/server/features/virtualisation |title=Ubuntu Server Edition JeOS |accessdate=2010-04-26}}</ref>
==Specifications==
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Specifications for version 8.10 and above include<ref name="JeOS: Ubuntu Server Edition"/>:
* Part of the standard Ubuntu Server ISO image
* Less than 380 MB installed footprint
* SpecialisedSpecialized server Kernel (-virtual)kernel
* OptimisedIntended for VMWare[[VMware ESX]], VMWare[[VMware Server and]], [[Kernel-basedlibvirt]] Virtualand Machine|[[KVM]]
* 128 MB minimum memory
* Intel or AMD x86 architecture
* No graphical environment preloaded as it is aimed at server virtual appliances▼
* Minimum memory 128 MiB
▲* No graphical environment preloaded as it is aimed at server virtual appliances