![]() ![]() While these modules are free as in beer, they are not free as in speech and thus are not included by some distributions because the maintainers feel it "taints" the kernel by providing non-free software. The OS includes some common core components, like the GNU tools, among others. Organizations can also choose to run their Linux OS on a Linux server. nVidia, ATI, among others) do not provide the source code but rather they build their own modules and compile the needed. Every Linux-based OS involves the Linux kernel which manages hardware resourcesand a set of software packages that make up the rest of the operating system. Third party and closed source modules are available in some distributions, like Ubuntu, and may not be installed by default because the source code for the modules is not available. The kernel is the core interface between a computers hardware and its processes. ![]() A short tour of Linux history Linux or GNU/Linux You've probably noticed that Linux as an operating system is referred to in some cases as 'Linux' and in others as 'GNU/Linux. Use the pointers to more content to dig in further. Because of their modular nature you can easily customize your kernel by setting modules to load, or not load, during startup with the menuconfig command or by editing your /boot/config file, or you can load and unload modules on the fly with the modprobe command. The Linux kernel is central to the Linux computer operating system. The Linux kernel is over six million lines of code, so this introduction is not exhaustive. ko and are typically stored in the /lib/modules directory. This article will provide an overview of the most important changes. A module typically adds functionality to the base kernel for things like devices, file systems, and system calls. The Linux core is in a constant state of development and expansion. ![]()
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