Families

In this section

• 🐧 Unix Families

  The Unix variants

  Unix proprietary	GNU / Linux	BSD / open source	Mainframe	Virtualisation
  AIX	Debian	FreeBSD	MVS (IBM)	VMware / VirtualBox
  HP-UX	Slackware	NetBSD	SCOS (Bull)	Cloud (IaaS)
  SunOS (BSD fork) → Solaris	SUSE	OpenBSD		OpenStack (IaaS/SaaS)
  IRIX (SGI)	Red Hat	FreeBSD → macOS
  	Fedora
  	openSUSE
  	CentOS
  	Ubuntu (Debian)
  	Mint

  The Unix families

  Early SunOS (1–4) was BSD-derived; from Solaris 2 / SunOS 5 onward it is System V (SVR4) based — hence Solaris is listed under System V while the variants table notes its BSD fork.

  Historically, Unix split into two main branches: