Hello,
Today I have tried to Install Virtualbox 5.0.x on my Newly Installed Fedora 24. I expected it to run smoothly as expected but It failed in kernel module compilation with following error
(modprobe vboxdrv failed. Please use ‘dmesg’ to find out why)
Then After I tried to reload module again with command sudo modprobe vboxdrv and failed again with following error
modprobe: ERROR: could not insert ‘vboxdrv’: Required key not available