Digitally sign drivers in Ubuntu 17
I came across the solution when installing Virtual box on Ubuntu but got the old
modprobe: ERROR: could not insert 'vboxdrv': Required key not available
I was having the same issue with my r8152 drivers for my Lenovo Thunderbolt 3 dock
This article got me 90% of the way to a solution but I wasn't able to load the driver.
The solution was fairly simple.
==Create a key, trust the key, use the key to sign the driver, reboot, Import the key during the MOK management boot screen, reboot, modprobe the driver, All good :)==
https://gorka.eguileor.com/vbox-vmware-in-secureboot-linux/