Just enough operating system

Just Enough Operating System (JeOS, pronounced "juice") is a paradigm for customizing operating systems to fit the needs of a particular application such as for a software appliance. The platform only includes the operating system components required to support a particular application and any other third-party components contained in the appliance, (e.g., the kernel). This makes the appliance smaller, faster (to boot and to execute the particular application) and potentially more secure than an application running under a full general-purpose OS.

Common implementations

Typically, a JeOS will consist of the following:

  • JeOS media (OS core {kernel, virtual drives, login})
  • OS minimum maintenance tools
  • Minimum user space tools
  • Packages repository (DVD or network based)

It is important to differentiate between true fully minimalized OS install profiles forced, for example, with security hardening tools or representing Recovery Console images and JeOS richer install profiles which are designed and built for wider audience usage, so VM/VA creators and their users can easily perform needed installation or configuration tasks.

gollark: <@404675960663703552> Random kind of late interjection: Ryzen can do (not the registered kind) ECC memory, though probably not on all boards. There's an ASRock one with IPMI and stuff which supports it.
gollark: Just buy 5 MacBooks, then, obviously.
gollark: I don't think they are great NAS choices.
gollark: Laptops only have one small internal drive bay generally and you need to connect the rest over slow USB thingies.
gollark: Anyone use netdata (https://github.com/netdata/netdata) for monitoring? It seems to be pretty nice for setting up simple dashboards for things without huge amounts of fiddling.

See also

References
  • Krishnamurti, Srinivas (July 9, 2007). "Get Juiced!". VMware's Executive Blog. VMWare. Archived from the original on July 8, 2012. Retrieved 2009-02-20.
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