How to Upgrade to Linux Kernel 4.3 RC3 (Mainline) on Ubuntu / Linux Mint / Elementary OS

Install/Update and upgrade Linux Kernel 4.3 RC3 (Mainline) on Ubuntu 15.04 Vivid Vervet, ubuntu 14.10 Utopic Unicorn, Ubuntu 14.04 Trusty Tahr (LTS), Pinguy OS 14.04, Elementary OS 0.3 Freya and Linux Mint 17.2 Rafaela, Linux Mint 17.1 Rebecca, Linux Mint 17 Qiana

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 help from various developers), Linux is a clone of the UNIX operating system. It is geared towards POSIX and Single UNIX Specification compliances.

Includes powerful features

Linux provides users with powerful features, such as true multitasking, multistack networking, shared copy-on-write executables, shared libraries, demand loading, virtual memory, and proper memory management.

Initially designed only for 386/486-based computers, now Linux supports a wide range of architectures, including 64-bit (IA64, AMD64), ARM, ARM64, DEC Alpha, MIPS, SUN Sparc, PowerPC, as well as Amiga and Atari machines.

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How to Upgrade to Linux Kernel 4.3 RC3 (Mainline) on Ubuntu / Linux Mint / Elementary OS

To Install/Update and upgrade Linux Kernel 4.3 RC3 (Mainline) on Ubuntu 15.04 Vivid Vervet, ubuntu 14.10 Utopic Unicorn, Ubuntu 14.04 Trusty Tahr (LTS), Pinguy OS 14.04, Elementary OS 0.3 Freya and Linux Mint 17.2 Rafaela, Linux Mint 17.1 Rebecca, Linux Mint 17 Qiana derivative system, open a new Terminal window and bash (get it?) in the following commands:

For Ubuntu 32 bit :

$ wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-rc3-unstable/linux-headers-4.3.0-040300rc3_4.3.0-040300rc3.201509271225_all.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-rc3-unstable/linux-headers-4.3.0-040300rc3-generic_4.3.0-040300rc3.201509271225_i386.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-rc3-unstable/linux-image-4.3.0-040300rc3-generic_4.3.0-040300rc3.201509271225_i386.deb

For Ubuntu 64 bit :

$ wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-rc3-unstable/linux-headers-4.3.0-040300rc3_4.3.0-040300rc3.201509271225_all.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-rc3-unstable/linux-headers-4.3.0-040300rc3-generic_4.3.0-040300rc3.201509271225_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-rc3-unstable/linux-image-4.3.0-040300rc3-generic_4.3.0-040300rc3.201509271225_amd64.deb

Lowlatency kernel 32 bit :

$ wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-rc3-unstable/linux-headers-4.3.0-040300rc3_4.3.0-040300rc3.201509271225_all.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-rc3-unstable/linux-headers-4.3.0-040300rc3-lowlatency_4.3.0-040300rc3.201509271225_i386.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-rc3-unstable/linux-image-4.3.0-040300rc3-lowlatency_4.3.0-040300rc3.201509271225_i386.deb

Lowlatency kernel 64 bit :

$ wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-rc3-unstable/linux-headers-4.3.0-040300rc3_4.3.0-040300rc3.201509271225_all.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-rc3-unstable/linux-headers-4.3.0-040300rc3-lowlatency_4.3.0-040300rc3.201509271225_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-rc3-unstable/linux-image-4.3.0-040300rc3-lowlatency_4.3.0-040300rc3.201509271225_amd64.deb

Install, update or Upgrade Linux Kernel 4.3 RC3 (Mainline):

$  sudo dpkg -i *.deb

Atfer install complete, update grub and reboot your computer and choose new kernel in grub :

$ sudo update-grub
$ sudo reboot

The source is available now. Binary packages are in the process of being built, and will appear soon at their respective download locations.

WARNING: Installing a new kernel may render your system unusable or unstable. If you proceed with the installation using the instructions below, make sure you back up any important data you have to an external hard drive.