SerwerWeb.pl

The given method describes how a few simple steps will update our system karnel Centos7
At the beginning we make update all packages on the server and install.

yum -y update
yum -y install yum-plugin-fastestmirror

The next step is to check the current version karnel:

cat /etc/redhat-release
cat /etc/os-release
uname -msr

add the repository:

rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm

We verify that the repository has been correctly added:

yum repolist

Install new karnel with the command:

yum --enablerepo=elrepo-kernel install kernel-ml

The next step is to set thick to run us a new karnel

Check available karnel command :

sudo awk -F\' '$1=="menuentry " {print i++ " : " $2}' /etc/grub2.cfg

Ruler 0 Kernel should mean 4.11.2
ruler 1 Kernel should oznaczacz 3.10

set as the default so 0

sudo grub2-set-default 0

Then we re configure thick and reboot the system

sudo grub2-mkconfig -o /boot/grub2/grub.cfg
sudo reboot

The final step is to remove the old karnel

yum install yum-utils
package-cleanup --oldkernels