Installing VirtualBox and Vagrant on CentOS 7

gistfile1.txt

# Some notes from installing VirtualBox on CentOS 7. 
# These exact steps haven't been tested, as I ran them in a different order when manually installing.

# Install dependencies
yum -y install gcc make patch  dkms qt libgomp
yum -y install kernel-headers kernel-devel fontforge binutils glibc-headers glibc-devel

# Install VirtualBox
cd /etc/yum.repos.d
wget http://download.virtualbox.org/virtualbox/rpm/rhel/virtualbox.repo
yum install VirtualBox-5.0

# Check that you have the kernel sources downloaded for your running kernel version (if they don't match you might need to yum update and reboot)
ls /usr/src/kernels/
uname -r

# Build the VirtualBox kernel module 
export KERN_DIR=/usr/src/kernels/$(uname -r)
/sbin/rcvboxdrv setup

# Install Vagrant
yum -y install https://releases.hashicorp.com/vagrant/1.8.1/vagrant_1.8.1_x86_64.rpm

# Test Vagrant
mkdir ~/test-vagrant
cd ~/test-vagrant
vagrant init ubuntu/trusty64
vagrant up

Installing the kernel-devel alone is not enough, however I'm using this instead
sudo yum -y install "kernel-devel-uname-r == $(uname -r)"

Also check if Perl is installed, if not
sudo yum -y install perl

Then following the rest of the step just fine :)

Run this

yum -y install gcc make patch  dkms qt libgomp
yum -y install kernel-headers kernel-devel fontforge binutils glibc-headers glibc-devel
cd /etc/yum.repos.d
wget http://download.virtualbox.org/virtualbox/rpm/rhel/virtualbox.repo
yum install VirtualBox-5.2 -y
export KERN_DIR=/usr/src/kernels/$(uname -r)
/sbin/rcvboxdrv setup

and get an error on /var/log/vbox-install.log :

/tmp/vbox.0/Makefile.include.header:141: *** Error: unable to find the headers of the Linux kernel to build against. Specify KERN_VER=<version> (currently 3.10.0-327.el7.x86_64) and run Make again...

I solved this by reboot and set correct KERN_VER
export KERN_VER=$(uname -r)

Maybe a reboot before yum install VirtualBox will make everything smoothly.