Inspur K-UX
OS familyLinux (Unix-like)
Latest release3.0
PlatformsIA-64, x86-64
Kernel typeMonolithic (Linux)
UserlandGNU, POSIX

Inspur K-UX is a Linux distribution based on Red Hat Enterprise Linux produced by Inspur, a Chinese multinational company specializing in information technology. Inspur K-UX 2.0 and 3.0 for x86-64 were officially certified as UNIX systems by The Open Group.


Inspur K-UX 1.0 was certified for the Linux Standard Base (LSB 4.0) in 2012. K-UX 1.0 was compiled for the IA-64 architecture (Itanium).[1]

Inspur K-UX 2.0 was one of six commercial operating systems that have versions certified to The Open Group UNIX 03 standard (the others being macOS, Solaris, IBM AIX, HP-UX, and EulerOS). The operating system was certified running on the Inspur Tiansuo K1.[2] The operating system was compiled for the x86-64 architecture.[3] The UNIX 03 conformance statement for Inspur K-UX 2.0 shows that the standard C compiler is from the GNU Compiler Collection (gcc), and the system is a Linux distribution in the Red Hat family tree.[4]

Inspur K-UX 2.2 is featured in SPEC benchmark results, running on the Inspur K1 800 server. The benchmark results describe an Intel Xeon-based server running Inspur K-UX Server 2.2. The operating system appears to be based on Red Hat Enterprise Linux 6 for the x86-64 architecture.[5]

Inspur K-UX 3.0 was also certified as a UNIX OS, although, according to the same website, its certification expired on 3 February 2019 and has not yet been renewed.[6]


  1. ^ "LSB Certification System". The Linux Foundation. Retrieved 2015-12-08.[permanent dead link]
  2. ^ "The Open Brand Register of Certified Products". The Open Group. 2014-05-29. Retrieved 2014-05-29.
  3. ^ Xie Ruohong. "Inspur Conformance Statement". The Open Group. Archived from the original on 2015-12-10. Retrieved 2015-12-08.
  4. ^ Xie Ruohong. "Inspur Conformance Statement: Commands and Utilities V4". The Open Group. Retrieved 2015-12-08.
  5. ^ "SPEC® CINT2006 Result - Inspur Corporation K1 800". Retrieved 2015-12-07.
  6. ^ Inspur K-UX 3.0 is UNIX 03 certified