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.
Machine details:
cat /etc/os-release
NAME="CentOS Linux" VERSION="7 (Core)" ID="centos" ID_LIKE="rhel fedora" VERSION_ID="7" PRETTY_NAME="CentOS Linux 7 (Core)" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:centos:centos:7" HOME_URL="https://www.centos.org/" BUG_REPORT_URL="https://bugs.centos.org/"
Installed Kernel info:
uname -a
Linux localhost.localdomain 3.10.0-123.el7.x86_64 #1 SMP Mon Jun 30 12:09:22 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
Add ELREPO repository
Import the Public Key:
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
To install ELRepo for RHEL-7, SL-7 or CentOS-7:
rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm
To install ELRepo for RHEL-6, SL-6 or CentOS-6:
rpm -Uvh http://www.elrepo.org/elrepo-release-6-6.el6.elrepo.noarch.rpm
Start the new kernel installation:
yum --enablerepo=elrepo-kernel install kernel-ml-3.*
Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: mirror.1000mbps.com * elrepo: ftp.nluug.nl * elrepo-kernel: ftp.nluug.nl * epel: mirror.proserve.nl * extras: mirror.1000mbps.com * rpmforge: ftp.nluug.nl * updates: mirror.widexs.nl Resolving Dependencies --> Running transaction check ---> Package kernel-ml.x86_64 0:3.18.5-1.el7.elrepo will be installed --> Finished Dependency ResolutionDependencies Resolved============================================================================================================================== Package Arch Version Repository Size ============================================================================================================================== Installing: kernel-ml x86_64 3.18.5-1.el7.elrepo elrepo-kernel 35 MTransaction Summary ============================================================================================================================== Install 1 PackageTotal download size: 35 M Installed size: 160 M Is this ok [y/d/N]: Y
Accept and proceed by typing Y.
Reboot your system.
Done!
