Installing VirtualBox 5.1.14 on Fedora 25

Installing Oracle Virtualbox 5.1.14

On Fedora 25

Root access:
sudo -i

Add Virtualbox repo to Yum / Dnf:
cd /etc/yum.repos.d
wget http://download.virtualbox.org/virtualbox/rpm/fedora/virtualbox.repo

Update the system:
dnf update

Check if kernel has the same version:
(should printout the same version)
uname -r
rpm -qa kernel | sort -V | tail -n 1

Install dependencies:
dnf install binutils gcc make patch libgomp glibc-headers glibc-devel kernel-headers kernel-devel dkms

Install VirtualBox:
dnf install VirtualBox-5.1

Setup and rebuild vboxdrv using the kernel:
/usr/lib/virtualbox/vboxdrv.sh setup

Add user to vboxusers group:
usermod -a -G vboxusers user_name

Exit the root access:
exit

Launch VirtualBox:
VirtualBox

If you have problems with KERN_DIR parameter or your kernel directory is not automatically detected then set KERN_DIR environment variable manually, using following method:

## Current running kernel on Fedora ##
KERN_DIR=/usr/src/kernels/`uname -r`
 
## Current running kernel on CentOS and Red Hat (RHEL) ##
KERN_DIR=/usr/src/kernels/`uname -r`-`uname -m`
 
## Fedora example ##
KERN_DIR=/usr/src/kernels/2.6.33.5-124.fc13.i686
 
## CentOS and Red Hat (RHEL) example ##
KERN_DIR=/usr/src/kernels/2.6.18-194.11.1.el5-x86_64
 
## Export KERN_DIR ##
export KERN_DIR