The Linux kernel is the essential part of any Linux operating system. It is responsible for resource allocation, low-level hardware interfaces, security, simple communications, basic file system management, and more.
Written from Scratch by Linus Torvalds (with the help of various developers), Linux is a clone of the UNIX operating system. It is geared towards POSIX specifications and UNIX specifications only.
Linux provides users with powerful features, such as true multitasking, multitrack networking, shared copy-on-write executables, shared libraries, demand load, virtual memory, and proper memory management.
Initially designed only for 386/486-based computers, Linux now supports a wide range of architectures, including 64-bit (IA64, AMD64), ARM, ARM64, DEC Alpha, MIPS, SUN Sparc, PowerPC, and more.
About the new Linux kernel update version 4.18.1
A few days ago an update for Linux Kernel 4.19 was published, along with some improvements that have been implemented and other news that they are still testing, but will still be released in versions later than this version.
Linux 4.19 remains in good shape, as demonstrated by version 4.19.1.
The Linux kernel 4.19.1 does not have great fixes for the consequences of 4.19, as there have been no obvious problems.
This Linux kernel update version 4.19.1 has only a handful of solutions These include some SPARC64 jobs, Wake-On-LAN broken from S3 suspended in the Realtek r8169 network driver, a potential Specter V1 vulnerability in the vhost driver, and other mostly mundane changes.
Greg KH also released Linux 4.18.17 and Linux 4.14.79 with similar maintenance changes.
Meanwhile, later today Linus Torvalds is expected to release Linux 5.0-rc1, or Linux 4.20-rc1 in case he changes his mind about the kernel version decision.
How to install the stable Kernel 4.19.1 in Ubuntu and its derivatives?
In order to install this new version of the Linux Kernel We must download the packages according to the architecture of our system as well as the version that we want to install.
It is important to mention that this installation is valid for any version of Ubuntu that is currently supported, that is, Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and the new version of Ubuntu that is version 18.10 as well as its derivatives of these .
For those who still use Ubuntu-derived systems that still continue to support 32-bit architecture, they should download the following packages, for this we are going to open a terminal and in it execute the following commands:
wget -c kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.1/linux-headers-4.19.1-041901_4.19.1-041901.201811041431_all.deb wget -c kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.1/linux-headers-4.19.1-041901-generic_4.19.1-041901.201811041431_i386.deb wget -c kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.1/linux-image-4.19.1-041901-generic_4.19.1-041901.201811041431_i386.deb wget -c kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.1/linux-modules-4.19.1-041901-generic_4.19.1-041901.201811041431_i386.deb
Now For those who are users of 64-bit systems, the packages to download are the following:
wget -c kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.1/linux-headers-4.19.1-041901_4.19.1-041901.201811041431_all.deb wget -c kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.1/linux-headers-4.19.1-041901-generic_4.19.1-041901.201811041431_amd64.deb wget -c kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.1/linux-image-unsigned-4.19.1-041901-generic_4.19.1-041901.201811041431_amd64.deb wget -c kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.1/linux-modules-4.19.1-041901-generic_4.19.1-041901.201811041431_amd64.deb
At the end of the download of the packages, just run the following command to install them on the system.
sudo dpkg -i linux-headers-4.19*.deb linux-image-4.19*.deb
Linux Kernel 4.19.1 Low Latency Installation
In the case of low latency kernels, the packets that must be downloaded are the following, For those who are 32-bit users, they must download these:
wget -c kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.1/linux-headers-4.19.1-041901_4.19.1-041901.201811041431_all.deb wget -c kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.1/linux-headers-4.19.1-041901-lowlatency_4.19.1-041901.201811041431_i386.deb wget -c kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.1/linux-image-4.19.1-041901-lowlatency_4.19.1-041901.201811041431_i386.deb wget -c kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.1/linux-modules-4.19.1-041901-lowlatency_4.19.1-041901.201811041431_i386.deb
O For those who are using 64-bit systems, the packages to download are the following:
wget -c kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.1/linux-headers-4.19.1-041901_4.19.1-041901.201811041431_all.deb wget -c kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.1/linux-headers-4.19.1-041901-lowlatency_4.19.1-041901.201811041431_amd64.deb wget -c kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.1/linux-image-unsigned-4.19.1-041901-lowlatency_4.19.1-041901.201811041431_amd64.deb wget -c kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.1/linux-modules-4.19.1-041901-lowlatency_4.19.1-041901.201811041431_amd64.deb
At the end of the download of the files we can install any of these packages with the following command from the terminal:
sudo dpkg -i linux-headers-4.19*.deb linux-image-4.19*.deb
Finally, we only have to restart our system so that all the changes are saved and when we start it again, our system runs with the new version of the Kernel that we have just installed.
In the same way, they can carry out an update without problems and in an automated way with the help of Ukuu, a tool that I talked about a while ago. You can check the publication in the following link.