This question already has an answer here:
I followed the 'Debian-based Linux distributions' guide on the VirtualBox website.
sudo apt install virtualbox-5.2 I got the error:
vboxdrv.sh: failed: modprobe vboxdrv failed. Please use 'dmesg' to find out why. There were problems setting up VirtualBox. To re-start the set-up process, run /sbin/vboxconfig as root.
Loading of unsigned modules is restricted; see man kernel_lockdown.7.
How can I fix this?
I read something about secureboot but I don't want to disable it.
Do I have to sign the VirtualBox module (how? add custom sign key?) or is there another way?
Kubuntu 18.04 Kernel
After following this guide https://stegard.net/2016/10/virtualbox-secure-boot-ubuntu-fail/ and executing
sudo modprobe vboxdrv I got the error
modprobe: ERROR: could not insert 'vboxdrv': Required key not available. With
modinfo vboxdrv I see:
filename: /lib/modules/4.15.0-23-generic/misc/vboxdrv.ko version: 5.2.12 r122591 (0x00290001) license: GPL description: Oracle VM VirtualBox Support Driver author: Oracle Corporation srcversion: 63368184ED096B3022FD087 depends: retpoline: Y name: vboxdrv vermagic: 4.15.0-23-generic SMP mod_unload signat: PKCS#7 signer: sig_key: sig_hashalgo: md4
So it looks like it's not signed right? Whats wrong with this? I tried to sign it manually with
/usr/src/linux-headers-4.15.0-23-generic/scripts/sign-file sha256 ./MOK.priv ./MOK.der /lib/modules/4.15.0-23-generic/misc/vboxdrv.ko with the same result.