1.查看自己的内核版本
[root@localhost /]# rpm -qa |grep kernelkernel-tools-libs-3.10.0-862.6.3.el7.x86_64kernel-ml-4.17.6-1.el7.elrepo.x86_64kernel-tools-3.10.0-862.6.3.el7.x86_64kernel-headers-3.10.0-862.6.3.el7.x86_64
2.查看yum中VirtualBox版本
[root@localhost /]# yum list | grep VirtualBoxRepository base is listed more than once in the configurationRepository updates is listed more than once in the configurationRepository extras is listed more than once in the configurationRepository centosplus is listed more than once in the configurationVirtualBox-4.3.x86_64 4.3.40_110317_el7-1 virtualboxVirtualBox-5.0.x86_64 5.0.40_115130_el7-1 virtualboxVirtualBox-5.1.x86_64 5.1.38_122592_el7-1 virtualboxVirtualBox-5.2.x86_64 5.2.16_123759_el7-1 virtualbox
最新版本为VirtualBox-5.2
3.导入epel安装源
yum install epel-release
4.添加VirtualBox安装源
# cd /etc/yum.repos.d/# wget http://download.virtualbox.org/virtualbox/rpm/rhel/virtualbox.repo
5.安装相关依赖包
# yum update# yum install binutils qt gcc make patch libgomp glibc-headers glibc-devel kernel-headers kernel-devel dkms
再次查看内核版本：
[root@localhost yum.repos.d]# rpm -qa |grep kernelkernel-headers-3.10.0-862.11.6.el7.x86_64kernel-ml-4.17.6-1.el7.elrepo.x86_64kernel-tools-3.10.0-862.11.6.el7.x86_64kernel-tools-libs-3.10.0-862.11.6.el7.x86_64[root@localhost yum.repos.d]# uname -r4.17.6-1.el7.elrepo.x86_64
发现kernel-headers,kernel-tools,kernel-tools-libs小版本升级了
6.安装VirtualBox
[root@localhost /]# yum install VirtualBox-5.2
7.启动
[root@localhost hongdada]# VirtualBoxWARNING: The vboxdrv kernel module is not loaded. Either there is no module available for the current kernel (4.17.6-1.el7.elrepo.x86_64) or it failed to load. Please recompile the kernel module and install it by sudo /sbin/vboxconfig You will not be able to start VMs until this problem is fixed.Qt FATAL: QXcbConnection: Could not connect to display
明显内核版本冲突
重建VirtualBox内核模块：
[root@localhost yum.repos.d]# /usr/lib/virtualbox/vboxdrv.sh setupvboxdrv.sh: Stopping VirtualBox services.vboxdrv.sh: Starting VirtualBox services.vboxdrv.sh: Building VirtualBox kernel modules.This system is currently not set up to build kernel modules.Please install the Linux kernel "header" files matching the current kernelfor adding new hardware support to the system.The distribution packages containing the headers are probably: kernel-devel kernel-devel-4.17.6-1.el7.elrepo.x86_64
还是不行
安装低内核版本：
[root@localhost kernels]# yum install kernel-3.10.0-862.11.6.el7.x86_64
安装kernel-devel
yum install kernel-devel-3.10.0-862.11.6.el7.x86_64
再次查看内核版本：
[root@localhost yum.repos.d]# uname -r4.17.6-1.el7.elrepo.x86_64[root@localhost yum.repos.d]# rpm -qa |grep kernelkernel-headers-3.10.0-862.11.6.el7.x86_64kernel-ml-4.17.6-1.el7.elrepo.x86_64kernel-tools-3.10.0-862.11.6.el7.x86_64kernel-3.10.0-862.11.6.el7.x86_64kernel-tools-libs-3.10.0-862.11.6.el7.x86_64
重启，选择低内核版本
8.低内核版本再次启动VirtualBox
查看内核版本，如果不一致，安装：
[root@localhost /]# yum install kernel-headers-$(uname -r) kernel-devel-$( uname -r) -y
再次重建VirtualBox内核模块
[root@localhost /]# /usr/lib/virtualbox/vboxdrv.sh setupvboxdrv.sh: Stopping VirtualBox services.vboxdrv.sh: Starting VirtualBox services.vboxdrv.sh: Building VirtualBox kernel modules.
再次启动：
[root@localhost /]# VirtualBoxQt FATAL: QXcbConnection: Could not connect to display 已放弃[root@localhost /]# systemctl start vboxdrv.service[root@localhost /]# systemctl status vboxdrv.service● vboxdrv.service - VirtualBox Linux kernel module Loaded: loaded (/usr/lib/virtualbox/vboxdrv.sh; enabled; vendor preset: disabled) Active: active (exited) since 一 2018-09-03 15:13:15 CST; 55s ago Process: 655 ExecStart=/usr/lib/virtualbox/vboxdrv.sh start (code=exited, status=0/SUCCESS) Memory: 0B9月 03 15:11:14 localhost.localdomain systemd[1]: Starting VirtualBox Linux kernel module...9月 03 15:11:17 localhost.localdomain vboxdrv.sh[655]: vboxdrv.sh: Starting VirtualBox services.9月 03 15:11:17 localhost.localdomain vboxdrv.sh[990]: Starting VirtualBox services.9月 03 15:11:17 localhost.localdomain vboxdrv.sh[655]: vboxdrv.sh: Building VirtualBox kernel modules.9月 03 15:13:15 localhost.localdomain systemd[1]: Started VirtualBox Linux kernel module.
终于好了