![]() ![]() List down the available Linux kernels in /boot directory. If the above command returns a kernel other than the latest one, then you have to set the default kernel for GRUB. You can confirm it by using following commands. Unless someone has explicitly set the default kernel to an older version. Usually the latest Linux Kernel should be active on your operating system. In this article, you will see how to remove old Linux kernels from your CentOS / RHEL 8 operating system.Ĭonnect with your Linux server as root user.Įxecute the following rpm command, to list the installed kernels on your Linux operating system. Therefore, the Kernel boot entries are limited to 3 only. In default CentOS / RHEL 8 configurations, the Yum Package Manager installs maximum 3 versions of Linux Kernel. If you updated your Linux operating system, then you have notice that, after each upgrade of Linux Kernel the GRUB menu will add a new boot entry while keeping the previous entries intact. Linux is deployed on a wide variety of computing systems, such as embedded devices, mobile devices (including its use in the Android operating system), personal computers, servers, mainframes, and supercomputers. Since then, it has spawned a large number of operating system distributions, commonly also called Linux. It was conceived and created in 1991 by Linus Torvalds for his i386-based PC, and it was soon adopted as the kernel for the GNU operating system, which was created as a free replacement for UNIX. The Linux kernel is a free and open-source, monolithic, modular, multitasking, Unix-like operating system kernel. This article will show you how to remove old Linux kernels from your CentOS / RHEL 8 and similar Linux distros. ![]()
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