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Linux is a registered trademark of Linus Torvalds in the United States, other countries, or both.
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Linux is an operating system whose kernel was developed by
Linus Torvalds and initially distributed in 1991. Linux has evolved
to become a widely accepted operating system with a wealth of applications.
Today, many Linux distributions also contain a variety of tools and
utilities provided by the open source community (e.g., from the GNU project).
Linux is platform-independent and executes on many architectures, including
IBM System z, IBM Power Systems™, Intel®, Alpha®, or Sparc®. Linux is Open Source software
which means that the source code may be downloaded free of charge. You can learn more about Open Source
on www.opensource.org.
Although the source code is free, only system programmers build their own distributions. For production purposes, Linux distributions built by Linux distribution partners are used.
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Linux on System z is the synonym for Linux running on any IBM mainframe, including:
- IBM System z10™
- IBM System z9®
- IBM eServer™ zSeries™ (z990, z890, z900, z800)
- S/390® (9672 G5, G6 and Multiprise® 3000 processors).
Linux on System z exploits the strengths and reliability features of the System z hardware, while preserving the openness and stability of Linux.
For more information refer to the Linux on System z homepage at: ibm.com/systems/z/os/linux
Linux on System z distributions are offered by Linux distribution partners who provide services and support.
IBM offers consulting services, defect and remote technical support for all eligible generally available distributions of Linux for System z.
For more information, please contact your IBM representative or business partner or call 1-800-426-4968 (U.S.) or the appropriate IBM number in your region.
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These pages are provided to describe Linux on System z functionality for system programmers. Some of the information is useful for users of Linux on System z distributions.
- The "Development stream" pages document what new functionality in upstream Linux packages is developed for Linux on System z, which will be integrated into distributions over time.
The documentation provided for the development stream does not match any Linux distribution but can be used to learn about the functionality.
Note that until early 2008, arbitrary streams were used as a base for documenting Linux on System z functionality (instead of the current upstream "Development stream"). These old streams are still available in the "Archive".
- The "Distribution hints" pages provide additional information for recent distributions.
- The "Tuning hints & tips" pages contain a collection of observations and recommendations from the Linux on System z Performance Team.
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