The Latest Linux Kernel 4.3 has been released on Nov 02, 2015. Ubuntu users can directly download latest kernel Debian packages from kernel.ubuntu.com website and install on their systems.

This article will help you to install Linux Kernel 4.3 on Ubuntu, Debian & LinuxMint operating systems. Remember you are going to upgrade Linux kernel on your own risk. Following steps works for us with Ubuntu 14.04 64bit.

Step 1 – Download Kernel Packages

Linux Kernel 4.3 packages are available on kernel.ubuntu.com website. You can visit this site and download latest kernel debian packages. You may also use following commands to download Linux kernel packages directly to your system.

For 64-bit Systems:

$ wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-wily/linux-headers-4.3.0-040300_4.3.0-040300.201511020949_all.deb
$ wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-wily/linux-headers-4.3.0-040300-generic_4.3.0-040300.201511020949_amd64.deb
$ wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-wily/linux-image-4.3.0-040300-generic_4.3.0-040300.201511020949_amd64.deb

For 32-bit Systems:

$ wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-wily/linux-headers-4.3.0-040300_4.3.0-040300.201511020949_all.deb
$ wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-wily/linux-headers-4.3.0-040300-generic_4.3.0-040300.201511020949_i386.deb
$ wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-wily/linux-image-4.3.0-040300-generic_4.3.0-040300.201511020949_i386.deb

Step 2 – Install Kernel Packages

Now install downloaded kernel packages on your system using following command.

$ sudo dpkg -i linux-headers-4.3*.deb linux-image-4.3*.deb

You can also update grub for latest kernel using following command.

$ sudo update-grub

After installation of everything just reboot your system.

$ sudo reboot

Step 3 – Verify Kernel Version

After rebooting your system, Check installed kernel version on your Ubuntu system using following command.

$ uname -a

Linux test-1 4.3.0-040300-generic #201511020949 SMP Mon Nov 2 14:50:44 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Or you can run following command to show kernel version only in output.

$ uname -r

4.3.0-040300-generic