Centos7开机启动问题以及piix4_smbus故障

开机报错如下：

[1.304422] sd 0:0:0:0: [sda] Assuming drive cache:write through
[2.770269] piix4_smbus 0000:00:07.3: Host SMBus controller not enabled!
[3.041253] intel_rapl: no valid rapl domains found in package 0
Welcome to emergency mode! After logging in,type "journalctl -xb" to view
system logs,"systemctl reboot" to reboot,"systemctl default" or ^D to try again to boot into default mode.
Give root password for maintenance
(or type Control-D to continue):

后来运行journalctl -xb查看报错信息，运用网上解决方法并不行，最后查看察觉会不会是内核版本问题，之后进行内核升级，发现问题解决！