[root@localhost ~]# yum install kernel-headers kernel-devel
Last metadata expiration check: 0:01:39 ago on Mon 31 Oct 2022 09:04:00 PM CST.
Package kernel-headers-4.18.0-408.el8.x86_64 is already installed.
Package kernel-devel-4.18.0-408.el8.x86_64 is already installed.
Dependencies resolved.
Nothing to do.
Complete!
[root@localhost ~]#
[root@localhost ~]# vim /etc/hosts
#加入此段
172.250.25.9 workststion.lab.example.com workstation
172.250.25.10 servera.lab.example.com servera
172.250.25.11 serverb.lab.example.com serverb
172.250.25.12 serverc.lab.example.com serverc
172.250.25.13 serverd.lab.example.com serverd
172.250.25.14 servere.lab.example.com servere
~