因为在学习 docker 至 swarms，需要安装 docker-machine，所以也就需要安装 virtualbox。但是一直安装不成功， 下面是错误信息
● vboxdrv.service - VirtualBox Linux kernel module
Loaded: loaded (/usr/lib/virtualbox/vboxdrv.sh; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Fri 2019-02-22 12:36:01 CST; 22min ago
Process: 2000 ExecStart=/usr/lib/virtualbox/vboxdrv.sh start (code=exited, status=1/FAILURE)
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 kernel
for adding new hardware support to the system.
The distribution packages containing the headers are probably:
kernel-devel kernel-devel-3.10.0-514.26.2.el7.x86_64
vboxdrv.service: control process exited, code=exited status=1
Failed to start VirtualBox Linux kernel module.
Unit vboxdrv.service entered failed state.
vboxdrv.service failed.
这是：kernel-devel
[root@VM_0_15_centos ~]# yum install kernel-devel
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
Package kernel-devel-3.10.0-957.5.1.el7.x86_64 already installed and latest version
Nothing to do
这是: kernel-headers
[root@VM_0_15_centos ~]# yum install kernel-headers
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
Package kernel-headers-3.10.0-957.5.1.el7.x86_64 already installed and latest version
Nothing to do
Select Language