@JosephMart As @grego9 said, but if you struggle I've attached the script as I extracted and used it.

Hi just wanted to add a meager 2c to this. I ended up extracting the RHEL7 RPM contents into /opt/chefdk and running the script from POST to create the relevant symlinks for the binaries and that was that. The chef tools themselves use their own ruby in /opt/chefdk/embedded and everything just works.

sudo eopkg check linux-current-headers returned a whole mess of missing files (I assume pretty much the whole lot):

Also had the same problem with the latest kernel (4.13.8-28) and wasn't sure how to downgrade to a specific older version of the current. Installed the lts kernel and managed to get virtualbox 5.1.30 to install properly.

I've been experiencing this / a similar problem with a Lenovo ThinkPad P50.