How To Install Linux Kernel 4.15 (Includes Patches for Meltdown and Spectre) In Ubuntu Linux And Its Derivatives

As usual, Sunday (28, JAN 2018), Linux creator Linus Torvalds officially announced the final release of Linux Kernel 4.15, Which includes patches for two critical bugs Meltdown and Spectre. Apart from patches for Meltdown and Spectre bugs there also some other inresting things comes with Linux 4.15, such as support for the RISC-V architecture, support for AMD Secure Encrypted Virtualization, as well as support for the User-Mode Instruction Prevention feature on Intel CPUs..

As Soon as it was released, immediately it will be available for rolling release distros such as Arch Linux, Solus, or even openSUSE. Soon it will be available for Fedora users also.. But for Ubuntu, you have to manually install Linux 4.15, if you want to upgrade your current Linux kernel installed in your system. Here I am going to show you how to install Linux 4.15 in Ubuntu Linux and It's derivatives.

Warning : The Linux kernel is a critical element of the system. To do the upgrade costs when one of your hardware devices is not working properly, and the new kernel may fix this problem. But at the same time installing a new kernel unnecessarily can lead to undesirable regressions, such as: no network connection, no sound or even the inability to boot the system, so install a new kernel on your own risk.

Installation Steps :

Before starting... Update your system package source list and upgrade all installed packages to latest version by running following commands..

sudo apt-get update; sudo apt-get upgrade

Now make a new folder/directory to download and store required binaries files...

mkdir linux4.15 && cd linux4.15

Now download required files with following command..

For 64 bit:


wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15/linux-headers-4.15.0-041500_4.15.0-041500.201802011154_all.deb;
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15/linux-headers-4.15.0-041500-generic_4.15.0-041500.201802011154_amd64.deb;
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15/linux-image-4.15.0-041500-generic_4.15.0-041500.201802011154_amd64.deb;

For 32 bit:


wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15/linux-headers-4.15.0-041500_4.15.0-041500.201802011154_all.deb;
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15/linux-headers-4.15.0-041500-generic_4.15.0-041500.201802011154_i386.deb;
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15/linux-image-4.15.0-041500-generic_4.15.0-041500.201802011154_i386.deb;

Or if you want to download manually.. you can download from here.. and put them in one directory.
if you are downloading manually.. download correct binaries for your architecture...
If you are not sure about your OS architecture.. Run getconf LONG_BIT command.. This will tell you whether the kernel is 64 bit or 32 bit..
See More On Finding System Architecture..

Now Install Downloaded Packages..

sudo dpkg -i *.deb

Now Reboot the system and enjoy.. :)

Here's the video version of above tutorial ...

That's all for now.. Don't Like us on fb.com/opensourceinside

KodeMonk

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Thursday, February 1, 2018