X-Files Wiki

On Ubuntu 22.04 if you get the message “Could not open /dev/vmmon” you can use this fix for it until VMware comes around to fix it. Which will probably be never since this is going to happen every time there is a new kernel update.

Continue with caution This will modify your kernel and can make your life miserable.

Run the folowing script to fix the virtual network. Bweare I had some issues getting the below script to run as Ubuntu 22.04 did now have gcc-12 installed. You can install gcc-12 like this.

apt install gcc-12

Script for the virtual network.

#!/bin/bash

cd /usr/lib/vmware/modules/source
git clone https://github.com/mkubecek/vmware-host-modules
cd vmware-host-modules
git checkout workstation-17.5.0
make
tar -cf vmnet.tar vmnet-only
tar -cf vmmon.tar vmmon-only
mv vmnet.tar /usr/lib/vmware/modules/source/
mv vmmon.tar /usr/lib/vmware/modules/source/
vmware-modconfig --console --install-all

But hey we are not done. You need so sign those drivers as well. So here is a script that does exactly that.

#!/bin/bash

rm vmware17.priv
rm vmware17.der

PRIV_FILE=vmware17.priv
DER_FILE=vmware17.der

echo "Problems with vmmon and vmnet modules, it's normal"
sudo vmware-modconfig --console --install-all

if [ -f "$PRIV_FILE" ]; then
		echo "$PRIV_FILE present, no need to regenerated"
else
		echo "$PRIV_FILE missing, generating a new one"
		openssl req -new -x509 -newkey rsa:2048 -keyout $PRIV_FILE -outform DER -out $DER_FILE -nodes -days 36500 -subj "/CN=VMWARE/"
fi

echo "Now sign the two kernel modules (monitor and net)"
echo "This step is need when kernel is updated"
sudo /usr/src/linux-headers-$(uname -r)/scripts/sign-file sha256 $PRIV_FILE $DER_FILE $(modinfo -n vmmon)
sudo /usr/src/linux-headers-$(uname -r)/scripts/sign-file sha256 $PRIV_FILE $DER_FILE $(modinfo -n vmnet)

echo "Check modules signed"
tail $(modinfo -n vmmon) | grep "Module signature appended"

echo "Test if certs is already enrolled if not we need to import it in mok"
sudo mokutil --test-key vmware17.der

echo "Importing the trusted key in our MOK"
echo "Enter a bit long password like vmware1717"
sudo mokutil --import vmware17.der

printf "Now it's time for reboot...\n\n"
printf "Important remember the password.\n"
printf "You will get a blue screen after reboot here choose:\n\n"
printf "Enroll MOK\n"
printf "Continue\n"
printf "YES\n"
printf "Enter Password\n"
printf "OK or REBOOT\n"