Wednesday, October 22, 2008

WOT is JeOS (Just Enough Operating System)???

Good old days I was playing with Rad Hat distros all the time, Web sphere, Oracle were my best buddies. But recently (from 2, 3 years back) I was bit away from LINUX and forced to stay with Windows. (who did that ?, poor me !)

From couple of week’s back I had a imagination to recompile a LINUX kernel in to a very light build and to be used on VMware ESX. Yes, there are some light LINUX kernels in the industry. But really wanted to make it very light and tune for VMware virtual infrastructure.

Thanks to google, I found JeOS which meets all the expectations I have been looking for. This is compiled by Ubuntu team. And I don't forget to thank to Ubuntu team as well :)

“Ubuntu Server Edition JeOS (pronounced "Juice") is an efficient variant of our server operating system, configured specifically for virtual appliances. Currently available as a CD-Rom ISO for download, JeOS is a specialised installation of Ubuntu Server Edition with a tuned kernel that only contains the base elements needed to run within a virtualized environment.”

Users deploying virtual appliances built on top of JeOS will benefit from:

  • better performances on the same hardware compared to a full non-optimized OS
  • smaller footprint of the virtual appliance on their valuable disk space
  • fewer updates and therefore less maintenance than a full server installation

Tech Specs - v 8.04:

  • Less than 100Mo ISO image
  • Less than 300Mo installed footprint
  • Specialised -virtual Kernel 2.6.24
  • Optimised for VMWare ESX, VMWare Server and KVM
  • Intel or AMD x86 architecture
  • Minimum memory 128M
  • No graphical environment preloaded as it is aimed at server virtual appliance
  • Working knowledge of linux administration and debian packages recommended to start building your own appliance

Start testing it right now, download the image today from
Learn how to use JeOS to create your own appliance at
Canonical ISV programme
Interested in joining Canonical's ISV programme? Please go to:

I'm so surprised with it !

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