Self sign the required modules, vmmon and vmnet, for VMWARE to work with SecureBoot on, Ubuntu 17

selfsign-vmware-modules.sh

#!/bin/sh

#Asking for sudo because the script needs it almost all the time
sudo echo -n

#Creating the key used to sign the two modules
echo 'Preparing vmware key...'
openssl req -new -x509 -newkey rsa:2048 -keyout VMWAREKEY.priv -outform DER -out VMWAREKEY.der -nodes -days 36500 -subj "/CN=VMware/"

#Sign the modules
echo 'Signing Virtual machine monitor...'
sudo /usr/src/linux-headers-$(uname -r)/scripts/sign-file sha256 ./VMWAREKEY.priv ./VMWAREKEY.der $(modinfo -n vmmon)

echo 'Signing Virtual ethernet...'
sudo /usr/src/linux-headers-$(uname -r)/scripts/sign-file sha256 ./VMWAREKEY.priv ./VMWAREKEY.der $(modinfo -n vmnet)

#Import the key, it will ask you to set a password. You need to reboot for changes to take effect
echo 'Importing key...'
echo 'Set a password to use after reboot'
sudo mokutil --import VMWAREKEY.der

RED='\033[0;31m' 
printf "${RED}### You need to reboot for the changes to take effect. \n${RED}### Use the password you entered above to import the key. \n"