Just enough operating system
Paradigm for customising operating systems
Just enough operating system (JeOS, pronounced "juice" according to SUSE) 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.
01Common 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.
02Differences between minimalist, lightweight and appliance
- Light-weight Linux distribution
- minimalist e.g. Porteus (operating system)
Sources and credits
This article is adapted from the Wikipedia article “Just enough operating system”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
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