Hello Linux Geeksters. As you may know, Linus Torvalds has released the stable version of Kernel 4.1 RC1 this weekend, the Kernel update bringing new features and fixes.

Starting with Kernel 4.0, the long awaited Live Patching feature (which permits the users to update the kernel without having to reboot the system) has been implemented. While this is not important for regular users, this feature is very good for Linux servers.
In this article I will show you how to install Kernel 4.1 RC1 on Ubuntu 15.04 Vivid Vervet, Ubuntu 14.10 Utopic Unicorn, Ubuntu 14.04 Trusy Tahr, Linux Mint 17 Qiana, Pinguy OS 14.04, LXLE 14.04, Peppermint Five, Deepin 2014, Linux Lite 2, Elementary OS 0.3 Freya and other Ubuntu derivative systems.
Because it is not available via PPA, the needed deb packages of Kernel 4.1 RC1 are available via kernel.ubuntu.com. Follow the instructions for your system’s architecture exactly, in order to get a successful installation.
How to install Kernel 4.1 RC1 on 32 bit Ubuntu 15.04, Ubuntu 14.10, Ubuntu 14.04 and derivative systems:
Download the needed packages:
$ cd /tmp
$ wget \
kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc1-vivid/linux-headers-4.1.0-040100rc1_4.1.0-040100rc1.201504270235_all.deb \
kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc1-vivid/linux-headers-4.1.0-040100rc1-generic_4.1.0-040100rc1.201504270235_i386.deb \
kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc1-vivid/linux-image-4.1.0-040100rc1-generic_4.1.0-040100rc1.201504270235_i386.deb
Install Kernel 4.1 RC1:
$ sudo dpkg -i linux-headers-4.1*.deb linux-image-4.1*.deb
Optional, remove the kernel:
$ sudo apt-get remove linux-header-4.1* linux-image-4.1*
How to install Kernel 4.1 RC1 on 64 bit Ubuntu 15.04, Ubuntu 14.10, Ubuntu 14.04 and derivative systems:
Download the needed packages:
$ cd /tmp
$ wget \
kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc1-vivid/linux-headers-4.1.0-040100rc1_4.1.0-040100rc1.201504270235_all.deb \
kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc1-vivid/linux-headers-4.1.0-040100rc1-generic_4.1.0-040100rc1.201504270235_amd64.deb \
kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-rc1-vivid/linux-image-4.1.0-040100rc1-generic_4.1.0-040100rc1.201504270235_amd64.deb
Install Kernel 4.1 RC1:
$ sudo dpkg -i linux-headers-4.1*.deb linux-image-4.1*.deb
Optional, remove the kernel:
$ sudo apt-get remove linux-header-4.1* linux-image-4.1*