Yes, there are different Linux kernels, but they are all still Linux.
#RUNIX GITHUB ANDROID#
Android also uses a modified Linux kernel. Android uses the Linux kernel and the Dalvik userland, thus making Android - "Dalvik/Linux". Yes, Android is Linux, but not GNU/Linux.
This information may now answer the popular question - "Is Android a Linux system?". StormOS is another example of an operating system that uses the GNU userland, but is not Linux. The Mach kernel is an example of a microkernel. Even though the userland is specifically RedHat Linux, this does not make MkLinux a Linux distro. Once installed, it appears to be GNU/Linux with the GNOME user-interface and typical applications seen on Linux systems. Nextenta OS is an OpenSolaris system (GNU/kOpenSolaris). NOTE: The Hurd kernel contains the GNU-Mach kernel. Obviously, people need to be more clear on which Debian system they have when they need help fixing an issue. Some interesting forms of Debian include GNU/Hurd, GNU/NetBSD, and GNU/kFreeBSD (FreeBSD Kernel). Most people have at least heard of the GNU/Linux form that has many derivatives (like Ubuntu). All Debian systems use GNU, but may have different kernels. For instance, Mastodon Linux (FreeBSD/Linux) uses the Linux kernel, but has FreeBSD applications (userland).ĭebian is a system that has many variants. Userland refers to the user-space applications. This means it has qualities of both, but hybrid kernels cannot be classified as a monolithic kernel or microkernel exclusively. One other type of kernel is called a hybrid kernel which lies on the boundary between monolithic kernels and microkernels. There is a lot more to the definition and more differences, but these are the main defining characteristics.
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In other words, the drivers exist in another part of the operating system. This means microkernel system still have drivers, but they are not part of the kernel. In such systems, the device drivers are offered in another way and placed in the userspace. Monolithic kernels contain drivers (modules) and place them in kernelspace while microkernels lack drivers. For instance, one difference is the placement of device drivers. Monolithic systems have large kernelspaces. Monolithic kernels, however, contain much more. Microkernel systems have small kernelspaces and large userspaces. Microkernels offer the bare essentials to get a system operating. Linux is a monolithic kernel and Hurd is a microkernel. Two main types of kernels exist - monolithic kernels and microkernels. Many kernels exist for various operating systems. Also, Linux is not the only operating system with a module (obvious, right?). Not only do various userland and kernel combinations exist, there are different Linux kernels. For instance, Arch exists as "GNU/Linux" and "GNU/Hurd". They then swapped the Linux kernel with the Hurd kernel to make "GNU/Hurd" systems.
Today, the GNU community has a kernel called "Hurd". For example, in the beginning of Linux's history, the GNU community had no kernel at the time and Linux was just a kernel. Now, you may be wondering if these two components can be swapped. "GNU" refers to the userland and "Linux" refers to the kernel. Aloha! Many Linux users are familiar with Linux being called "GNU/Linux".
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