Linux-Centos7-升级内核

Linux-Centos7-升级内核

## 查看当前内核
uname -r

## 安装epel仓库
yum install https://www.elrepo.org/elrepo-release-7.el7.elrepo.noarch.rpm -y

## 安装最新长期支持内核
yum --enablerepo=elrepo-kernel install kernel-lt-devel kernel-lt -y

## 设置默认启动内核
awk -F\' '$1=="menuentry " {print i++ " "$2}' /etc/grub2.cfg
grub2-set-default 0
grub2-mkconfig -o /boot/grub2/grub.cfg

## 重启操作系统
reboot

## 再次查看内核
uname -r