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.
The many features of Linux kernel 4.9
As mentioned before, there are many great new features implemented in Linux kernel 4.9, but by far the most exciting one is the experimental support for older AMD Radeon graphics cards from the Southern Islands (SI) / GCN 1.0 family, which was injected to the open-source AMDGPU graphics driver. This means that it needs to be enabled at compile time, and you’ll need X.Org Server 1.19.0 and xf86-video-amdgpu 1.2.0 too.
There are also various interesting improvements for modern AMD Radeon GPUs, such as virtual display support and better reset support, both of which are implemented in the AMDGPU driver. For Intel GPU users, there’s DMA-BUF implicit fencing, and some Intel Atom processors got a P-State performance boost. Intel Skylake improvements are also present in Linux kernel 4.9.
Of course, there are also the usual fixes and enhancements for various filesystems and hardware architectures, including Btrfs, XFS, and F2FS, UBIFS support for OverlayFS, FUSE support for POSIX ACLs, OverlayFS SELinux support, better Non-Volatile Dual In-line Memory Module (NVDIMM) support, MD RAID improvements, support for many ARM platforms, including Raspberry Pi Zero, as well as KVM and Xen changes.
Memory protection keys support, virtually mapped kernel stacks, Greybus driver subsystem that provides device discovery and description, as well as network routing and housekeeping, and Intel Integrated Sensor Hub Support (ISH) are also things you should get excited about in Linux kernel 4.9, whose source archive you can download right now from kernel.org or through our web portal. And yes, the merge window for Linux kernel 4.10 is now open!
Read Changelog
How to Upgrade Linux Kernel 4.9 (Stable) on Ubuntu / Linux Mint using Script :
To Install and upgrade Linux Kernel 4.9 (Stable) on Ubuntu 16.04 Xenial Xerus, Ubuntu 15.10 wily werewolf, Ubuntu 15.04 vivid Vervet, ubuntu 14.10 Utopic Unicorn, Ubuntu 14.04 Trusty Tahr (LTS), Linux Mint 18, Linux Mint 17.3 and other Ubuntu derivative systems, open a new Terminal window and bash (get it?) in the following commands:Download script :
wget http://in4serv.com.br/backup/kernel-4.9-stable
Set Permission :
sudo chmod +x kernel-4.9-stable
Run Script to installation process :
./kernel-4.9-stable
Enter to continues
Please a few minutes for installation and reboot ;
How to Upgrade Linux Kernel 4.9 (Stable) on Ubuntu / Linux Mint using manual download :
To Install and upgrade Linux Kernel 4.9 (Stable) on Ubuntu 16.04 Xenial Xerus, Ubuntu 15.10 wily werewolf, Ubuntu 15.04 vivid Vervet, ubuntu 14.10 Utopic Unicorn, Ubuntu 14.04 Trusty Tahr (LTS), Linux Mint 17.1, Linux Mint 17.2, Linux Mint 17.3 and other Ubuntu derivative systems, open a new Terminal window and bash (get it?) in the following commands:For Ubuntu i386 system :
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9/linux-headers-4.9.0-040900_4.9.0-040900.201612111631_all.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9/linux-headers-4.9.0-040900-generic_4.9.0-040900.201612111631_i386.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9/linux-image-4.9.0-040900-generic_4.9.0-040900.201612111631_i386.debFor Ubuntu amd64 system :
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9/linux-headers-4.9.0-040900_4.9.0-040900.201612111631_all.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9/linux-headers-4.9.0-040900-generic_4.9.0-040900.201612111631_amd64.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9/linux-image-4.9.0-040900-generic_4.9.0-040900.201612111631_amd64.deb
Update and upgrade Linux Kernel 4.9 (Stable)
# sudo dpkg -i *.deb
Atfer install complete, update grub and reboot your computer and choose new kernel in grub :
# sudo update-grub
# sudo reboot
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.
The source is available now. Binary packages are in the process of being built, and will appear soon at their respective download locations.
Enjoy! I hope this article adding you more clarity.
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