centos7升级内核到5.10.7-1

更新kernel-ml，kernel-ml-headers，kernel-ml-devel

wget https://mirror.rc.usf.edu/elrepo/kernel/el7/x86_64/RPMS/kernel-ml-headers-5.10.7-1.el7.elrepo.x86_64.rpm
wget https://mirror.rc.usf.edu/elrepo/kernel/el7/x86_64/RPMS/kernel-ml-devel-5.10.7-1.el7.elrepo.x86_64.rpm
wget https://mirror.rc.usf.edu/elrepo/kernel/el7/x86_64/RPMS/kernel-ml-5.10.7-1.el7.elrepo.x86_64.rpm
yum localinstall -y  kernel-ml*

查看所有内核启动 grub2

awk -F \' '$1=="menuentry " {
    
    print i++ " : " $2}' /etc/grub2.cfg

修改为最新的内核启动

grub2-set-default 'CentOS Linux (5.10.7-1.el7.elrepo.x86_64) 7 (Core)'

重新启动，再次查看确认内核

reboot
uname -r

卸载低版本内核（可选）

rpm -qa | grep kernel
yum remove kernel-x.xx.x