Linus Torvalds introduced the Linux kernel 4.9. You can download the relevant deb packages from HERE and install them. Or just follow the instructions given below that will help you to install a new kernel multiple commands in terminal.
The new version made about 16 thousand corrections from 1719 developers, the size of the patch 45 MB changes 11042 files, added 632157 lines of code, deleted lines 354728). About 42% of all changes associated with device drivers, approximately 19% of changes relate to updating the code for specific hardware architectures, 12% related to the network stack, 5% – file systems and 4% c internal kernel subsystems. 11.6% of changes made by the employees of Intel, the same prepared by the staff of Linaro. Red Hat developers contributed 5.7% of the changes Google is 3.3%, Samsung – 3.3%, AMD – 2.9%, IBM – 2.5%.
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.
The easiest way to install any kernel – program UKUU
Suitable for Linux Mint.
Installing the Linux Kernel 4.9 into Linux Mint or others Ubuntu distrs:
Reminder to users of computers with Nvidia/AMD. Before installing the kernel, it is advisable to switch to the free driver.
1. Open a terminal, copy and run one of the commands according to the architecture of your system/computer, at your own risk:
For 32-bit (single command):
cd /tmp; wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9/linux-headers-4.9.0-040900_4.9.0-040900.201612111631_all.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9/linux-headers-4.9.0-040900-generic_4.9.0-040900.201612111631_i386.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9/linux-image-4.9.0-040900-generic_4.9.0-040900.201612111631_i386.deb; sudo dpkg -i *.deb
For 64-bit (single command):
cd /tmp; wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9/linux-headers-4.9.0-040900_4.9.0-040900.201612111631_all.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9/linux-headers-4.9.0-040900-generic_4.9.0-040900.201612111631_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9/linux-image-4.9.0-040900-generic_4.9.0-040900.201612111631_amd64.deb; sudo dpkg -i *.deb
2.Update GRUB (GRUB need to upgrade the Linux system where it is installed, if you have more than one)
Note If you have a boot loader installed BURG, and it should be updated:
3. At the end of the installation, close all applications and restart the computer the following command:
Once logged in, check the version of the current kernel with the command:
If you decide to delete the kernel 4.9,
1. When the computer boots, the GRUB menu, selectyourold kernel. After bootingthe system,removethe new kernel by command below
Use program UKUU
sudo apt purge linux-image-4.9-*
3. And again update GRUB or BURG
To return to the previous kernel when booting Grub select Previous Linux versions