CentOS 7 - Aktueller Kernel: Unterschied zwischen den Versionen

Aktuelle Version vom 21. Februar 2019, 13:28 Uhr

CentOS 7 is still using 3.10 as the default kernel version. Since then there where a lot of enhancements we wanna use. For example: TLS v1.3

The default CentOS repository gives us no choice but using the kernel from ELRepo repository.

Import the public key:

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

Install ELRepo for CentOS 7

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

Remove the old kernel

yum remove kernel{,-tools,-tools-libs}

Install the new one. We want to note explicitly not to use any repository except elrepo-kernel

yum --disablerepo=\* --enablerepo=elrepo-kernel install kernel-lt{,-tools,-tools-libs}

We add 'exclude=kernel*' to the CentOS-Base repository, so it won't check for kernel updates here.

sed -i -e 's/gpgkey.*/& \nexclude=kernel*/g' /etc/yum.repos.d/CentOS-Base.repo

Create the new grub2-config:

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

@@ Zeile 1: / Zeile 1: @@
-=== Mainline / Longterm Kernel installieren ===
+=== Mainline / Longterm Kernel ===
-Die Mainline / Longterm Linuxkernel lassen sich am einfachsten über ELRepo installieren.
-Hierzu wie folgt den Public Key importieren:
+CentOS 7 is still using 3.10 as the default kernel version.
+Since then there where a lot of enhancements we wanna use.
+For example: TLS v1.3
+The default CentOS repository gives us no choice but using the kernel from ELRepo repository.
+Import the public key:
   rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
-Anschließend mit folgendem Befehl das Repository installieren
+Install ELRepo for CentOS 7
   rpm -Uvh https://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm
-Kernel installieren
+Remove the old kernel
+ yum remove kernel{,-tools,-tools-libs}
+Install the new one. We want to note explicitly not to use any repository except '''elrepo-kernel'''
   yum --disablerepo=\* --enablerepo=elrepo-kernel install kernel-lt{,-tools,-tools-libs}
-Alten (Standard CentOS 7) Kernel deinstallieren:
+We add 'exclude=kernel*' to the CentOS-Base repository, so it won't check for kernel updates here.
-  yum remove kernel{,-tools,-tools-libs}
+  sed -i -e 's/gpgkey.*/& \nexclude=kernel*/g' /etc/yum.repos.d/CentOS-Base.repo
-Grub2 Konfiguration absichern:
+Create the new grub2-config:
   grub2-mkconfig -o /boot/grub2/grub.cfg
+[[Category:Linux]]
+[[Category:Server]]
+[[Category:CentOS]]
+[[Category:Tutorials]]