Upgrade to Kernel 4.x on CentOS 6/CentOS 7/ RHEL 7

Upgrade Linux Kernel to 4.x

Kernel 4.x is highly optimised and gives a lot of boost in performance to all Linux servers, here are few simple commands to upgrade your Kernel to 4.x on your CentOS 6 / CentOS 7 / RHEL 7 VPS (It will work with any KVM Based VPS like the ones provided by hosteons.com) or Dedicated server :

CentOS 6 / RHEL 6:

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

rpm -Uvh http://www.elrepo.org/elrepo-release-6-8.el6.elrepo.noarch.rpm

yum install yum-plugin-fastestmirror

yum –enablerepo=elrepo-kernel install kernel-ml

Now update /etc/grub.conf and make sure the new kernel 4.x is selected as default kernel and just reboot your VPS/Dedicated Server to use the new kernel.

CentOS 7/RHEL 7:

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

rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm

yum install yum-plugin-fastestmirror

yum –enablerepo=elrepo-kernel install kernel-ml

Now update /etc/grub.conf and make sure the new kernel 4.x is selected as default kernel and just reboot your VPS/Dedicated Server to use the new kernel.

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