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Mar 5, 2018 - To update latest kernel version on Centos 7 Linux kernel is one of the largest open source project with upgrading versions. Updating the latest. In this brief tutorial, let us show you how I have upgraded my centos 7 kernel to the latest stable version. I am going to use a simple way so that beginners can easily understand how to upgrade to latest kernel. Yum --enablerepo=elrepo-kernel install kernel-ml-3.* Loaded plugins: fastestmirror.
Installing NVIDIA Drivers on RHEL or CentOS 7 Most users of NVIDIA graphics cards prefer to use the drivers provided by NVIDIA. These more fully support the capabilities of the card when compared to the nouveau driver that is included with the distribution. These are the steps to install the NVIDIA driver and disable the nouveau driver. Prepare your machine yum -y update yum -y groupinstall 'GNOME Desktop' 'Development Tools' yum -y install kernel-devel Download the latest NVIDIA driver for unix. Latest Long Lived Branch version Note: If using a recently released, top end GTX or Tesla you may get more support with the Latest Short Lived Branch instead.
In order to have the NVIDIA drivers rebuilt automatically with future kernel updates you can also install the EPEL repository and the DKMS package. This is optional. Yum -y install epel-release yum -y install dkms Reboot your machine to make sure you are running the newest kernel Edit /etc/default/grub. Append the following to “ GRUBCMDLINELINUX” rd.driver.blacklist=nouveau nouveau.modeset=0 Generate a new grub configuration to include the above changes. Grub2-mkconfig -o /boot/grub2/grub.cfg Edit/create /etc/modprobe.d/blacklist.conf and append: blacklist nouveau Backup your old initramfs and then build a new one mv /boot/initramfs-$(uname -r).img /boot/initramfs-$(uname -r)-nouveau.img dracut /boot/initramfs-$(uname -r).img $(uname -r) Reboot your machine If your machine doesn’t boot to a login prompt disconnect your monitor from the graphics card and plug directly into the onboard VGA port. Alternatively SSH directly into the machine.
The NVIDIA installer will not run while X is running so switch to text mode: systemctl isolate multi-user.target Run the NVIDIA driver installer and enter yes to all options. Sh NVIDIA-Linux-x8664-.run Reboot your machine Optionally install NVIDIA’s CUDA Toolkit Download the latest CUDA Toolkit (runfile installer option, not the rpm download) Linux x8664 RHEL/CentOS 7 runfile (local) Run the CUDA installer. Sh cuda.run Say no to installing the NVIDIA driver.
The standalone driver you already installed is typically newer than what is packaged with CUDA. Use the default option for all other choices. To add CUDA to your environment add the following files. Create /etc/profile.d/cuda.sh PATH=$PATH: /usr/local/cuda/bin export PATH Create /etc/profile.d/cuda.csh set path = ( $path /usr/local/cuda/bin ) Create /etc/ld.so.conf.d/cuda.conf /usr/local/cuda/lib64.
To check system parameters such as the kernel version and build date, OS architecture, hostname, etc., you can use the uname command, which is included in coreutils package: # uname -rv 3.10.0-693.11.6.el7.x8664 #1 SMP Thu Jan 4 01:06:37 UTC 2018 To view the current kernel version and build date, run uname -r. Depending on the platform your server is running on, you may see slightly different output, even for the same CentOS 7 operating system. If you have a VPS as an OpenVZ container, it is not possible to upgrade your kernel independently, because all virtual containers run the same kernel loaded on the node. Therefore, voluntary upgrade can be performed only on Dedicated Servers and KVM-based virtual servers. To upgrade the kernel, you can run this yum command: yum upgrade kernel By default, this command should ask for confirmation to install new kernel: Is this ok y/d/N: If you want to skip the confirmation, you can use the -y switch: yum upgrade kernel -y Once the new kernel is installed you need to load it. To do so, you need to reboot the server: reboot Once the server has finished rebooting, you should check the loaded kernel version as described in previous section.
![Centos install kernel Centos install kernel](/uploads/1/2/5/6/125663556/627479221.jpg)
KernelCare Usage. KernelCare is a live-patching software for Linux kernels distributed by CloudLinux. When using KernelCare, the server does not require rebooting for kernel upgrades, and kernel patches are checked and applied on the fly automatically every 4 hours.
![Centos install kernel source Centos install kernel source](/uploads/1/2/5/6/125663556/154456946.png)
It is available only for Dedicated Servers and KVM virtual servers. You can check if KernelCare is installed as follows: # yum info kernelcare -q Installed Packages Name: kernelcare Arch: x8664 Version: 2.14 Release: 2 Size: 217 k Repo: installed From repo: kernelcare Summary: KernelCare tools URL: License: CLOUD LINUX LICENSE AGREEMENT Description: KernelCare userland tools To check if patches have been applied, run: kcarectl -info More details about KernelCare can be found in the following places:. Sometimes you may need to remove old kernels from the server manually.
To check all installed kernels, this yum command could be used again: # yum list kernel -q Installed Packages kernel.x8664 3.10.0-693.11.1.el7 @updates kernel.x8664 3.10.0-693.11.6.el7 @updates Using the command package-cleanup with the -oldkernels switch would remove all old kernels, leaving only ' count' most recent ones (by default count=2). For example, to remove all kernels except the one most recently installed and loaded, run the following command: package-cleanup -oldkernels -count=1.