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Reconfigure Ubuntu's virtualbox-DKMS after a kernel upgrade
#!/bin/bash
# Description: Everytime the Kernel is upgraded (which is quite often), virtualbox stops working and throws the following error:
#
# The provider 'virtualbox' that was requested to back the machine
# 'default' is reporting that it isn't usable on this system. The
# reason is shown below:
#
# VirtualBox is complaining that the installation is incomplete. Please
# run `VBoxManage --version` to see the error message which should contain
# instructions on how to fix this error.
#
# This script upgrades and signs the virtualbox DKMS modules that cause this error
# The script assumes you already have a X.509 Key Pair (iamlocal_MOK.priv and iamlocal_MOK.der) in /home/username/Keys. If you do
# not, start here to create them: http://gorka.eguileor.com/vbox-vmware-in-secureboot-linux-2016-update/
# I recommend adding this script to your PATH so that whenever the error arises, you just run it
latestVersion=`ls /usr/src/| grep linux-headers- | sed 's/linux-headers-//g; s/-generic//g' | sort -rn| head -1`
KEYHOMEDIR=/home/username/Keys
#Sign the modules
for f in $(dirname $(modinfo -n vboxdrv))/*.ko
do
echo "Signing $f"; sudo /usr/src/linux-headers-"$latestVersion"-generic/scripts/sign-file sha256 $KEYHOMEDIR/iamlocal_MOK.priv $KEYHOMEDIR/iamlocal_MOK.der $f
done
#Reconfigure virtualbox
sudo dpkg-reconfigure virtualbox-dkms
sudo dpkg-reconfigure virtualbox
sudo modprobe vboxdrv
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