ip link add type vrf报错哦

 

CentOS使用yum的elrepo源升级内核

  

 

1、 导入public key

参考：http://elrepo.org/tiki/tiki-index.php

Import the public key:

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

Detailed info on the GPG key used by the ELRepo Project can be found on https://www.elrepo.org/tiki/key
If you have a system with Secure Boot enabled, please see the SecureBootKey page for more information.

To install ELRepo for RHEL-8 or CentOS-8:

yum install https://www.elrepo.org/elrepo-release-8.1-1.el8.elrepo.noarch.rpm

To make use of our mirror system, please also install yum-plugin-fastestmirror.

To install ELRepo for RHEL-7, SL-7 or CentOS-7:

yum install https://www.elrepo.org/elrepo-release-7.0-4.el7.elrepo.noarch.rpm

To make use of our mirror system, please also install yum-plugin-fastestmirror.

To install ELRepo for RHEL-6, SL-6 or CentOS-6:

yum install https://www.elrepo.org/elrepo-release-6-9.el6.elrepo.noarch.rpm

To make use of our mirror system, please also install yum-plugin-fastestmirror.

2、查看kernel

yum --enablerepo=elrepo-kernel  list  |grep kernel*

安装kernel-ml（ml=mainline）

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

3、 更改/etc/default/grub

 4、更新grub.conf

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

5、 重启shutdown -r now