CentOS is one of the most solid and stable distribution that there is, but this has a price to dispose of old packages. And one of them is the Linux kernel.

Currently, if you want to install Rocky Linux 8 / AlmaLinux 8 / CentOS 8, you will have to install version 4.18 and this is a problem for recent hardware. One case of this is AMD’s Ryzen processors that with each new version of the kernel have seen an improvement in performance and support. So, if you install Rocky Linux 8 / AlmaLinux 8 / CentOS 8 and your hardware is recent, it’s a good idea to do a kernel upgrade.

In this sense, the 5.13 kernel is supported by the Rocky Linux 8 / AlmaLinux 8 / CentOS 8 community. This guarantees an easy and safe installation. Also, this kernel is frequently patched by the community team bringing even more stability.

So, let’s do it.

Install Kernel 5.13 on Rocky Linux 8 / AlmaLinux 8 /CentOS 8

Many people like to have the latest kernel installed so they can get the most out of the hardware they have. That’s why it’s in their best interest to know how to do it.

So, open a terminal and upgrade your distribution

sudo dnf update

You can execute these commands as the root user or with a sudo user.

Thanks to an external repository called elrepo we can have different versions of the kernel. For example, in this repository, we can install the latest available kernel or the LTS version of it. That is, the repository is very well maintained.

So, to add it to the system, just run the following command:

sudo dnf install https://www.elrepo.org/elrepo-release-8.el8.elrepo.noarch.rpm

It then adds the GPG key from the repository in order to ensure that the packages are adequate and to indicate to the system that it is reliable.

sudo rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org

And now yes, install the 5.13 kernel by running the following command.

We will also install some packages needed to develop with the kernel such as headers and devel.

sudo dnf --enablerepo=elrepo-kernel install kernel-ml kernel-ml-devel kernel-ml-headers

At the end of the installation, restart the system

When you start again, check the changes:

uname -r
5.13.7-1.el8.elrepo.x86_64

So, you already have the 5.13 kernel on CentOS 8.

Conclusion

The Linux kernel is an essential part of our system. Therefore, it is advisable to be careful when installing it. In addition, it is only recommended to install it if you have hardware failures or if you have a very recent one.

The post How to install Linux Kernel 5.13 on Rocky Linux 8 / AlmaLinux 8 /CentOS 8? appeared first on Linux Windows and android Tutorials.

What’s new on Linux Kernel 5.12

Months after Linux Kernel 5.11 a new version is released highlighting support for DualSense, the PlayStation 5 controller. Therefore this feature makes it the highlight of the release.

As with every new version of the Kernel, support for a lot of hardware is added. Some of the hardware highlights include support for Nintendo 64, which in practice is not that relevant, but contributes to the virtualization of this legendary console.

On the GPU side, the new Linux 5.12 improves support for Intel’s Rocker Lake and Tigerlake iGPUs. Also, it includes Variable Rate Refresh (VRR) support for Intel Xe graphics technology integrated into Tiger Lake generation processors.

In the case of AMD, the RX 6800 and RX 6900 series have received overclock support with OverDrive. The AMDGPU driver has received enhancements and ACDC support to manage power and speed according to the power source (battery or AC).

Of course, in this new version, there is better support for Intel, AMD, and ARM processors. For example, support for the Qualcomm Snapdragon 888 5G is now included. On the other hand, to avoid unnecessary work, support for very old ARMS processors has been removed.

Linux 5.12 has also improved support for Microsoft’s Surface devices, and support for the Lenovo laptop platform has been added.

As always there is much more news like improved BTRFS support, compatibility with new audio mixers, like the Pioneer DJM-750, and improved audio debugging.

If you want to know all the new features we recommend you to visit this link

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Debian is one of the most solid and stable distribution that there is, but this has a price to dispose of old packages. And one of them is the Linux kernel.

Currently, if you want to install Debian 10, you will have to install version 4.19 and this is a problem for recent hardware. One case of this is AMD’s Ryzen processors that with each new version of the kernel have seen an improvement in performance and support. So, if you install Debian 10 and your hardware is recent, it’s a good idea to do a kernel upgrade.

In this sense, the 5.10 kernel is supported by the Debian team. This guarantees an easy and safe installation. Also, this kernel is frequently patched by the Debian team bringing even more stability.

So, let’s do it.

Installing Linux Kernel 5.10 on Debian 10

Now we can choose to compile the kernel ourselves, but this practice is not good if we want a supported system. This makes that every time a new version is released, we have to repeat the process. It is not so good.

Fortunately, Debian supports this kernel version, through the backports repository that adds stable and more updated packages to the buster.

So, the first step is to enable this repository, to do so, open a terminal and edit the system repository file.

sudo nano /etc/apt/sources.list

And add the backports repository, simply by adding this line at the end of the file.

deb https://deb.debian.org/debian buster-backports main contrib non-free

Save the changes and close the editor.

Then refresh APT to apply the new repository:

sudo apt update

The Debian backports repository is not automatically enabled. This is for security reasons. So to install a package from there, you have to manifest it explicitly.

So, to install the Linux Kernel 5.10 run the following command:

sudo apt install -t buster-backports linux-image-5.10.0-0.bpo.4-amd64 linux-headers-5.10.0-0.bpo.4-amd64
Reading package lists… Done
 Building dependency tree       
 Reading state information… Done
 The following additional packages will be installed:
   binutils binutils-common binutils-x86-64-linux-gnu cpp-8 gcc-8 libasan5 libatomic1 libbinutils libcc1-0 libgcc-8-dev libgomp1 libisl19 libitm1 liblsan0 libmpc3
   libmpfr6 libmpx2 libquadmath0 libtsan0 libubsan1 linux-compiler-gcc-8-x86 linux-headers-5.10.0-0.bpo.4-common linux-kbuild-5.10
 Suggested packages:
   binutils-doc gcc-8-locales gcc-8-multilib gcc-8-doc libgcc1-dbg libgomp1-dbg libitm1-dbg libatomic1-dbg libasan5-dbg liblsan0-dbg libtsan0-dbg libubsan1-dbg
   libmpx2-dbg libquadmath0-dbg linux-doc-5.10 debian-kernel-handbook
 Recommended packages:
   libc6-dev firmware-linux-free apparmor
 The following NEW packages will be installed:
   binutils binutils-common binutils-x86-64-linux-gnu cpp-8 gcc-8 libasan5 libatomic1 libbinutils libcc1-0 libgcc-8-dev libgomp1 libisl19 libitm1 liblsan0 libmpc3
   libmpfr6 libmpx2 libquadmath0 libtsan0 libubsan1 linux-compiler-gcc-8-x86 linux-headers-5.10.0-0.bpo.4-amd64 linux-headers-5.10.0-0.bpo.4-common
   linux-image-5.10.0-0.bpo.4-amd64 linux-kbuild-5.10
 0 upgraded, 25 newly installed, 0 to remove and 75 not upgraded.
 Need to get 91.2 MB of archives.
 After this operation, 462 MB of additional disk space will be used.
 Do you want to continue? [Y/n]

Then, reboot the system.

And open a terminal and check the updated kernel version:

uname -r
5.10.0-0.bpo.4-amd64

So, the kernel is installed correctly. Now you can use recent hardware in a better way on Debian 10.

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Recently a new version of the Linux kernel has been released. As always it updates many important drivers and adds support for new features. If you want to know more about this, read our post

Kernel Linux 5.8 released

However, this version of the kernel will not automatically come into our distribution unless we install it manually. One such distribution is OpenSUSE 15.2. So this is the goal of the post.

On the other hand, it is good to give you a warning and that is that if your system is very stable and you don’t have a real need to upgrade the kernel, you better not do it. This is because the kernel is where the drivers for all the hardware are located.

So you know the process brings advantages but also some risks.

So, let’s get started.

Install Linux kernel 5.8

First, check the version of the kernel that is running OpenSUSE 15.2:

:~$ uname -r
5.3.18-lp152.19-default

And you will see something like this:

OpenSUSE 15.2 has the 5.3 kernel installed by default.

OpenSUSE has a lot of fairly stable community repositories for many different packages. And there is also one for the Linux kernel. So, let’s add it.

:~$ sudo zypper ar https://download.opensuse.org/repositories/Kernel:/stable/standard/ kernel

After it’s properly added. We’re going to change the priority so that when we update the system it takes this repository into account.

:~$ sudo zypper mr -p 70 kernel
Repository 'kernel' priority has been set to 70.

After that, you need to refresh zypper to be able to recognize the new repository. When you use it for the first time, it will ask you to accept the GPG keys.

:~$ sudo zypper refresh

Now if we proceed with the installation. To do this, we must partially update the distribution but from the recently added repository.

:~$ sudo zypper dup -r kernel

When you run this command, you will notice that zypper will find some errors. This is normal, we are installing a new version of the kernel and from another repository.

To solve these problems, choose 1 in each question.

Then, reboot the system.

Once the system has started, it checks the changes.

:~$ uname -r
5.8.0-2.g9bc0044-default

And that is it. Keep in mind that this method eliminates the kernel by default, so it is a risk.

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Linux 5.8 of the Kernel will be the greatest of all times, as it was named by Linus Torvalds himself. After a hard work by the developers after finishing the release of the current version 5.7. Marking in the cycle of the developers a before and after.

Linux 5.8 features

Probably the version will be released in a stable way at the beginning or middle of August, for the worship of 2020. There is a lot of kernel updates to come.

• Starting with the processor upgrade.
• New hardware enablement in good numbers.
• Improved security features.
• Other new kernel infrastructure: such as the general notification queue
•  Cable test infrastructure on network codes.
• The continued advancement of open-source Intel/Radeon graphics drivers.

Conclusion

Linux 5.8 comes with a lot of improvements and development, which are pending to be added in different areas. In fact, it has received over 14K confirmations, with about 800K lines of new codes, as well as the modification of 14K files. It is also the first major kernel release introducing new guidelines for inclusive terminology. Version 5.8 is the kernel that should be the default for Ubuntu 20.10 and derivates.

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Linux 5.7 main features

One of the main news in Linux 5.7 is the inclusion of a new driver for exFAT. Of course, this file system made its debut in Linux 5.4 but this time Samsung will be in charge of maintaining an alternative to this. That is to say, exFat will come but with another implementation.

On the other hand, Thermal Pressure has received love and now is able to get more out of the CPU when it is hot. It is a great improvement especially on old CPUs that are prone to overheating from a process.

In the driver section, the inclusion of support for the 12th generation of Intel processors is noteworthy. This, although not new, is already considered mature enough to be enabled by default. Also, AMDGPU receives support for OLED panels. As well as support for plan level CTM, and P010 pixel format.

Another feature of this new version of Linux is that it improves the performance of the GRUB boot loader. Also, the incorporation of various drivers MediaTek, bridge, and more.

ARM features support for the Qualcomm Snapdragon 865 chip. Also, The Pinebook Pro laptop based on Rockchip RK3399 has received support in this version.

As always, there are many technical innovations that may go unnoticed by many. However, to consult them all there is Kernel Newbies.

To conclude, this release, although minor, continues the good work achieved so far. It is possible to see it in action in future versions of Ubuntu and in Rolling Release distributions.

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Ubuntu comes standard with the 4.15 kernel with the possibility to upgrade it to 5.3 but this is not the last stable version either. This is what I’m going to show you.

However, before we start I want to give you a warning, updating the kernel brings advantages but also some problems. If your system is stable and you have no problems with it, it is not recommended to do this. If your system is a test system and you know what you are doing, then yes.

Install Linux Kernel 5.6 on Ubuntu 18.04

First, it’s a good idea to back up your system. Or at least, your files on an external hard drive. For that, we have a post that you can use.

Then, you can update the system so that all the security patches are installed.

:~$ sudo apt update && sudo apt upgrade

Once you have finished, create a folder called kernel from which we will download the necessary files.

:~$ mkdir kernel && cd kernel

And from there you have to download 3 DEB files. We will get it directly from the Ubuntu kernel team.

First, we will download the kernel headers.

:~$ wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.6/linux-headers-5.6.0-050600_5.6.0-050600.202003292333_all.deb

Once the file has been successfully downloaded, you must now download the kernel as such.

:~$ wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.6/linux-image-unsigned-5.6.0-050600-generic_5.6.0-050600.202003292333_amd64.deb

Finally, it is necessary to download the file where the kernel driver modules are located. If this the kernel will be useless.

:~$ wget -c https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.6/linux-modules-5.6.0-050600-generic_5.6.0-050600.202003292333_amd64.deb

Once the files have been downloaded successfully, it’s time to install them.

:~$ sudo dpkg -i *.deb
Selecting previously unselected package linux-headers-5.6.0-050600.
 (Reading database … 66454 files and directories currently installed.)
 Preparing to unpack linux-headers-5.6.0-050600_5.6.0-050600.202003292333_all.deb …
 Unpacking linux-headers-5.6.0-050600 (5.6.0-050600.202003292333) …
 Selecting previously unselected package linux-image-unsigned-5.6.0-050600-generic.
 Preparing to unpack linux-image-unsigned-5.6.0-050600-generic_5.6.0-050600.202003292333_amd64.deb …
 Unpacking linux-image-unsigned-5.6.0-050600-generic (5.6.0-050600.202003292333) …
 Selecting previously unselected package linux-modules-5.6.0-050600-generic.
 Preparing to unpack linux-modules-5.6.0-050600-generic_5.6.0-050600.202003292333_amd64.deb …
 Unpacking linux-modules-5.6.0-050600-generic (5.6.0-050600.202003292333) …
 Setting up linux-headers-5.6.0-050600 (5.6.0-050600.202003292333) …
 Setting up linux-modules-5.6.0-050600-generic (5.6.0-050600.202003292333) …
 Setting up linux-image-unsigned-5.6.0-050600-generic (5.6.0-050600.202003292333) …
 I: /vmlinuz is now a symlink to boot/vmlinuz-5.6.0-050600-generic
 I: /initrd.img is now a symlink to boot/initrd.img-5.6.0-050600-generic
 Processing triggers for linux-image-unsigned-5.6.0-050600-generic (5.6.0-050600.202003292333) …
 /etc/kernel/postinst.d/initramfs-tools:
 update-initramfs: Generating /boot/initrd.img-5.6.0-050600-generic
 I: The initramfs will attempt to resume from /dev/sda3
 I: (UUID=0ada7cfa-745c-11ea-8fe3-0800277dafa2)
 I: Set the RESUME variable to override this.
 /etc/kernel/postinst.d/x-grub-legacy-ec2:
 locale: Cannot set LC_ALL to default locale: No such file or directory
 Searching for GRUB installation directory … found: /boot/grub
 Searching for default file … found: /boot/grub/default
 Testing for an existing GRUB menu.lst file … found: /boot/grub/menu.lst
 Searching for splash image … none found, skipping …
 Found kernel: /boot/vmlinuz-4.15.0-20-generic
 Found kernel: /boot/vmlinuz-5.6.0-050600-generic
 Found kernel: /boot/vmlinuz-4.15.0-20-generic
 Replacing config file /run/grub/menu.lst with new version
 Updating /boot/grub/menu.lst … done

And so the installation will begin.

So, reboot the system and finally check the installed kernel.

:~$ uname -r

So, everything went ok and now you can enjoy the new kernel.

Remember if the system is ok, do not upgrade the kernel. Please share this post and join our Telegram Channel.

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Thanks to the remote working from the home mode it is expected that future releases of the Linux kernel will be unaffected. At least this is the expectation given by Linus Torvalds.

Linux 5.6 features

Well, Linux kernel 5.6 makes its arrival with many new features in modern hardware support. However, the most important new feature is the inclusion of WireGuard. A highly reliable VPN that will now be supported by the Linux kernel. For example, the Cloudflare warp and Firefox VPN are based on this tool.

On the other hand, this new version, adds initial support for USB4. It also includes improvements in the drivers for Intel (specially 11th and 12th generations) and AMD graphics cards. Talking about AMD, it also includes initial support for Zen 3 processors.

In the field of virtualization, we have an important improvement. KVM adds protection against Spectre. Important for virtualization solutions like Proxmox.

However, other news concerning the archive and storage system. The main ones are these:

• Experimental compression support for F2FS has been added.
• This version includes EXT4 performance fixes.
• Also, The NFS client meanwhile can now use a cache if the NFS server connection is lost.

Another important news is that this version is the first version of the 32bits kernel that will work beyond the year 2038 due to the Unix problem with the timestamp. Anyway, there is a lot of time left for that year and it still hasn’t been completely mitigated.

As you have seen this version of Linux keeps its tonic of improving drivers and supporting new ones.

Conclusion

With each version of the Linux Kernel, new features arrive that increase the potential of the system. They also add support for modern hardware and give users special treatment.

Is this a special version of Linux? Thanks to the inclusion of WireGuard and the operation of the 32-bit kernel beyond 2038, it seems to be a special version of Linux.

It has been a short time since Linux 5.5 but there goes the kernel advancing step by step without caring about the virus that plagues us.

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After several weeks of intense development, we have a new version of the Linux Kernel, specifically 5.5. This version is one of the last ones before the release of Ubuntu 20.04, so it could be the version chosen for this distro.

Linux 5.5 has been released with a lot of improvements in the support of new devices and especially in the graphics section with AMD and Intel at the head that could be used in Ubuntu 20.04.

Linux 5.5 main features

As we always say in every release of a new version of the Kernel is that many new features are at the technical level. We also know that many existing drivers are updated to improve support. As well as the inclusion of others.

However, the most important improvements in this sector are taken by AMD and Intel. This new version improves the quality of the AMDGPU driver adding support to new graphic card models, but above all, improving the support to the existing ones. In the case of Intel, the support to Gen12 graphics is complemented.

In the file systems, the Btrfs RAID1 supports 3 and 4 copies, which makes the replication process faster and more efficient in many units. Also, this release adds NFS client support for cross-device offloaded copy.

If you have a System76 device this version will be very useful because and includes a new ACPI driver for them.

Also, in this version, the bufferbloat is mitigated thanks to Airtime Queue Limits. The bufferbloat is a problem that affects the performance of wifi networks in Linux.

Final thoughts

As we have seen, this version is quite interesting and should be followed closely because it could be included in Ubuntu 20.04.

If you want to install it, you can either compile the source code yourself or wait for the already compiled packages to come out. Anyway, we don’t recommend installing it on computers that already work well.

The new features are a lot, as always we can access Kernel Newbies to get a more readable list of all.

So, you can read our post about why should use Linux over Windows 7.

The post Linux 5.5 is here!!! appeared first on Linux Windows and android Tutorials.

The numbering of the Linux kernel 5

A few months ago Linus Torvald himself announced that there was going to be a change of numbering. Basically, because he didn’t like high numbers and because it was easier to continue the development.

So, what we expected as the Linux Kernel 4.21 was transformed into the Linux Kernel 5. As you can see is quite a leap, although the news is very important, are expected too much by the change of numbering.

What’s New in Linux Kernel 5.3?

Some of the novelties of this version are:

• Multiple enhancements to the XFS file system. multi-threaded inode skipping option implemented.
• On the other hand, EXT4 has also received a lot of care. Added support for gaps in directories.
• Improved support for Intel Icelake Gen 11 graphics.

If you want to see the rest of the news, you can check this link.

And many bug fixes. It is an important version for the number of bugs corrected.

Install the Linux Kernel 5.3 on Ubuntu 18.04

So, if you want to install this kernel for drivers or bugs on your system, you must first download these three files.

• The Linux image.
• The Kernel modules
• Finally, the kernel headers.

So, open a terminal and run these commands if you are using a 64-bit system.

Let us create a folder to save the files:

:~$ mkdir kernel5 && cd kernel5

After that, you can start the download.

:~$ wget https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.3.1/linux-headers-5.3.1-050301_5.3.1-050301.201909210632_all.deb

Next, this command:

:~$ wget https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.3.1/linux-image-unsigned-5.3.1-050301-generic_5.3.1-050301.201909210632_amd64.deb

Finally, the last file:

:~$ wget https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.3.1/linux-modules-5.3.1-050301-generic_5.3.1-050301.201909210632_amd64.deb

After that, install all the packages with this command:

:~$ sudo dpkg -i *.deb

Then, reboot the system.

When the system has booted, query the current kernel with this command:

:~$ uname -r

And that’s it.

Conclusion

The Linux kernel is an essential part of our system. Therefore, it is advisable to be careful when installing it. In addition, it is only recommended to install it if you have hardware failures or if you have a very recent one.

Please share this post with your friends

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