An open-source Unix operating system:

Clone this repo:
  1. eb96f8f 14252 Adjust boolean_t under __EXTENSIONS__ by Robert Mustacchi · 4 weeks ago master
  2. 6884664 14281 bhyve bungles kstat clean-up by Patrick Mooney · 26 hours ago
  3. 5e0a5eb 14275 crt object .comment sections should be string mergeable by Richard Lowe · 4 days ago
  4. df07a22 14159 ahci can deadlock with sata framework by Jason King · 6 weeks ago
  5. f1b92f9 14198 stack overflow from promisc callbacks by Robert Mustacchi · 7 years ago


This is the core illumos source tree.


The illumos build must be run on an illumos-based operating system. See the Building illumos section of our documentation for detailed instructions.


Code changes must be reviewed and tested. If you'd like to submit a change for inclusion in the project, please see the Contributing to illumos guide in our documentation.


The illumos community is small but active. We welcome everybody who would like to use the software and participate in the community -- whether you've decades of experience in systems software, or you're just getting started; whether you work for a company that uses illumos, or you just find it personally interesting.

Our Community guide includes details about our Mailing Lists and IRC channels.

Code of Conduct

Participation in our community spaces, and in the project in general, are covered by our Code of Conduct. By participating in the project you agree to abide by its terms.


Most of the existing code is licensed under the CDDL and we expect new code will generally be under this license as well. Modifications of existing code may not alter the original license terms. Integrations of code from upstream sources that use another open source license are permissible, subject to approval of the advocates.