Problem
i faced an error while installing Virtualbox on my fedora machine, and i could not create any virtual machines!!
but i found that there were some steps required to complete the installation
so i had to install some packages and do the steps
Solution
after downloading and installing virtualbox, you’ll have to write these commands:
yum install make automake autoconf gcc kernel-devel
/etc/init.d/vboxdrv setup
usermod -G vboxusers -a username
Enjoy running your Vbox