![]() Perhaps the easiest is to use the uname command (which reports basic information about a system's hardware and software) with its -r option, that is,Ĭopyright © 2006 The Linux Information Project. There are several ways to determine which release of the kernel is being used on any particular system. ![]() The first version of the 2.6 kernel, 2.6.0, was released on December 18, 2003, and the current 2.6.16 minor revision was released on March 20, 2006. This superseded 2.6.16.17, which was released on May 20. Other letters usually indicate the person responsible for that release, such as Alan Cox, Con Kolivas and Andrew Morton.Īs of the newest release was 2.6.16.18, which was released on May 22. The letters rc (followed by a number) refer to a release candidate and thus indicate a non-official release. Sometimes the four numbers will be followed by several letters, such as rc1, ac, ck and mm. The fourth number represents corrections, such as security patches and bug (i.e., error) fixes. It is only changed when new features or new drivers are added. Do you know the exact Linux kernel and distro release version on your PC While you can find the kernel version using the uname -r command on all systems. The third number indicates the minor revision of the kernel. However, this has changed starting with the Linux 2.6.x series, and new feature development now takes place in the same revision number. They were for testing new features and device drivers until they became sufficiently stable to be included in a stable release. Likewise, odd numbers, such as 1.1 or 2.5, have historically represented development releases. It was formerly the case that even numbers indicated a stable release, that is, one that was deemed fit for production use (i.e., use in a non-experimental environment), such as 1.2, 2.4 or 2.6. The associated headers file for a kernel has the. The second number denotes the major revision of the kernel version. The package name of the kernel is linux-image- followed by the version, like linux-image-4.4.0-21-generic. In fact, it has been changed only twice in the history of the kernel: in 1994 with version 1.0 and in 1996 with version 2.0. It is changed least frequently, and only when truly major changes in the concept and the code of the kernel occur. The first number denotes the kernel version. check kernel version with uname command in Linux The best Linux command to check the kernel version is to use the uname command. ![]() generic Distribution specific information. Linux kernels are now identified by a set of four numbers, sometimes supplemented by several additional characters. Linux kernel is 64-bit and its version is 4.15.0-54, where: 4 Kernel Version. The current version numbering system began with the kernel 1.0, which was released in March 1994. This was followed the next month by the 0.02 kernel. Theįirst, which was released by Torvalds in September 1991, was designated 0.01. The initial Linux kernels had a very simple numbering system. The Linux kernel was originally developed by Linus Torvalds, who based it on (but did not copy) both UNIX and MINIX (an open source clone of UNIX). In Linux, you can also find the kernel information in the file /proc/version.Linux kernel version numbering, by The Linux Information Project (LINFO) LINFOīecause there are numerous revisions and releases of the Linux kernel and new ones are developed at frequent intervals, it is important to have a system for clearly identifying them.Ī kernel is a program that constitutes the central core of a computer operating system and which has complete control over everything that occurs in the system. Find Linux kernel using /proc/version file Let’s see some other commands to find your Linux kernel version. I have been asked to display a list of Memory Usage, CPU Usage & Kernel Version for all Linux servers in our. GNU/Linux – Operating system (and no, it won’t show the distribution name).īut I’ll save you from information overload.x86_64 – Operating system architecture (you can run a 32-bit OS on a 64-bit processor).A timestamp for the last compilation is also there. #120-Ubuntu SMP Tue Sep 19 17:28: – This means that Ubuntu has compiled 4.4.0-97-generic 120 times. ![]() 4.4.0-97-generic – Kernel release (as we saw above).If you run the same command on BSD or macOS, the result will be different. Let me explain the output and what it means: The output of the command should look like this: Linux itsfoss 4.4.0-97-generic #120-Ubuntu SMP Tue Sep 19 17:28: x86_64 x86_64 x86_64 GNU/Linux ![]()
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