导入elrepo秘钥
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org安装elrepo官方源yum包
yum install https://www.elrepo.org/elrepo-release-8.el8.elrepo.noarch.rpm更改源为阿里源
sed -i '/mirrorlist/d' elrepo.repo
sed -i 's/http:\/\/elrepo.org\/linux/http:\/\/mirrors.aliyun.com\/elrepo/g' elrepo.repo查看可用内核
yum --disablerepo="*" --enablerepo="elrepo-kernel" list available安装内核
yum --enablerepo=elrepo-kernel install kernel-ml