DeveloperHuawei Technologies
OS familyLinux (Unix-like)
Working stateActive
Source modelOpen-source
Latest releaseV2.0SP8[1]
Marketing targetServers, Cloud computing, Personal computers, Embedded devices, Edge computing
PlatformsAArch64 (Kunpeng), x86-64
Kernel typeMonolithic (Linux)
UserlandGNU, POSIX
Official websiteEulerOS

EulerOS is a commercial Linux distribution developed by Huawei based on Red Hat Enterprise Linux[2] to provide an operating system for server and cloud environments.[3][4] Its open-source community version is known as openEuler, of which source code was released by Huawei at Gitee on December 31, 2019.[5][6]

OpenEuler 21.09 version launched with new file system called EulerFS, also a kernel upgrade that is organised similar to HarmonyOS multikernel architecture that carries both RTOS kernel and Linux kernel on October 1, 2021. Also, the operating system supports, UniProton RTOS kernel.[7]

OpenEuler became an open-source project operated by OpenAtom Foundation after Huawei donated the source code of openEuler to the foundation on November 9, 2021.[8][9]

KunLun Mission Critical Server

EulerOS 2.0, running on the Huawei KunLun Mission Critical Server, was certified to conform to The Open Group's UNIX 03 standard, however the certification expired in September 2022.[10]

EulerOS/KunLun allows replacing central processing unit board modules and memory modules without stopping the OS. Hot swapping of CPU and memory is provided by EulerOS.[11]

Code shared with HarmonyOS

EulerOS shares kernel technology with Huawei's mobile operating system, HarmonyOS. Huawei plans to unify additional components between both OSes.[12]


On November 2021, NestOS, an operating system based on open source EulerOS was launched. It incorporates the features of EulerOS, enhancing its capabilities in the cloud to cater to specific needs. NestOS, while maintaining the EulerOS ecology, brings its own features for various applications.[13]

On October 2022, the openEuler community updated the NestOS operating system to the new version based on the openEuler 22.09 version that include enhanced features to the system with nestos-assembler container image, optimized K8S, and improvements to its OpenStack system.[14]


  1. ^ "EulerOS 2.0 SP8 : kernel (EulerOS-SA-2022-2225)". Tenable. Retrieved 27 August 2022.
  2. ^ "Huawei's operating systems get support from home city of Shenzhen in adoption push". South China Morning Post. 2023-07-30. Retrieved 2023-10-24.
  3. ^ "EulerOS Introduction". Retrieved 2020-04-15.
  4. ^ "EulerOS Overview". Retrieved 2023-10-23.
  5. ^ "Huawei's Linux Distribution openEuler is Available Now!". It's FOSS. 2020-01-08. Retrieved 2023-10-24.
  6. ^ 网易 (2021-10-08). "华为欧拉A股产业链". Retrieved 2023-10-24.
  7. ^ Wales, Britney. "OpenEuler 21.09 officially launched with EulerFS, new file system, kernel upgrade". RPRNA. RPRNA. Retrieved 13 February 2024.
  8. ^ "openEuler". Retrieved 2023-10-24.
  9. ^ "欧拉捐赠的背后:共建数字基础设施操作系统和生态". huawei (in Chinese). Retrieved 2023-10-24.
  10. ^ "Unix 03". The Open Group. Retrieved 2020-06-14.
  11. ^ "Hot Swap - Huawei EulerOS V2.0 Administrators Guide 05 - Huawei". Retrieved 2023-10-10.
  12. ^ Sarkar, Amy (9 November 2021). "HarmonyOS and OpenEuler has shared operating system kernel: Huawei". Huawei Central. Retrieved November 9, 2021.
  13. ^ Li, Deng. "NestOS launched: Cloud Operating system based on Huawei EulerOS". HC Newsroom. HC Newsroom. Retrieved 31 January 2024.
  14. ^ Mishra, Yash. "OpenEuler 22.09 based NestOS Cloud system is released". HC Newsroom. HC Newsroom. Retrieved 31 January 2024.