illumos is a free and open-source Unix operating system. It derives from OpenSolaris, which in turn derives from SVR4 UNIX and Berkeley Software Distribution (BSD). illumos comprises a kernel, device drivers, system libraries, and utility software for system administration.
PCLinuxOS Alternatives
PCLinuxOS is described as 'Free easy to use Linux-based Operating System for desktops or laptops' and is a Linux Distro in the os & utilities category. There are more than 100 alternatives to PCLinuxOS for a variety of platforms, including Linux, Self-Hosted, Windows, BSD and Mac apps. The best PCLinuxOS alternative is Linux Mint, which is both free and Open Source. Other great apps like PCLinuxOS are Ubuntu, Debian, Fedora and Arch Linux.
Alternatives list
An Ubuntu Distribution that aims to make the switch to Linux easier, simpler and faster not just for Windows users but also Mac and Linux Distro users alike for free. Feren OS aims to be one of the best Distros, if not OSs out there...


+6
Peropesis is a small-scale, minimalist, command-line-based Linux operating system. It's an incomplete system, but it's constantly being improved. Also, it is a free operating system created from a free software.
A Linux distribution designed to facilitate the reconditioning of computers donated to humanitarian associations.



A project providing a fully free (as in freedom) derivative of Arch Linux. Inheriting Arch's lightweight and flexibility, Parabola offers software freedom plus all power to the users.





+5
OpenIndiana is a robust enterprise operating system, based on the illumos kernel. It is open source, free to use, community developed, and suitable for servers and desktops.


+3
Dragora GNU/Linux is a distribution created from scratch with the intention of providing a stable, multi-platform and multi-purpose operating system. It is built upon 100% free software. It has a very simple packaging system that allows installing, removing, upgrading and...






Kaisen Linux is a distribution for IT professional based on the Debian GNU/Linux distribution. It is a complete operating system whose originality is to provide a set of tools dedicated to system administration and covering all the needs for diagnosing and dealing with faults or...


+1
GoboLinux is a modular Linux distribution: it organizes the programs in your system in a new, logical way.


+1
Regata OS is an Operating System based on Linux (more precisely on openSUSE) developed for all types of users, however, with a special focus on gamers and content creators.



















