Run sudo usermod -aG vboxsf USERNAME where USERNAME is your guest OS username. Then run sudo /media/cdrom/n to install the Guest Additions Run the following command to install prerequisites for the Mac VirtualBox Guest Additions: sudo apt-get -y install gcc make linux-headers-$(uname -r)

You’ll be prompted by VirtualBox if this is necessary. Press Command-Shift-G and then type in that file to choose the VBoxGuesAdditions.iso. Once the Choose disk image… option was selected, you were probably shown a file picker. Select the VirtualBox Guest Additions image, for me this is located at /Applications/VirtualBox.app/Contents/MacOS/VBoxGuestAdditions.iso. While the VM is running, in the Mac menu bar go to Devices > Optical Drives > Choose disk image… Add your folder and select Yes for “Auto-mount” Here’s how to share files between a Ubuntu virtual machine and macOS High Sierra on VirtualBox. How to add a shared folder for Ubuntu on a macOS High Sierra Host?

At the bottom of the window, you should see a message saying “System software from developer, ‘Oracle, America, Inc.‘ was blocked from loading.”Ĭlick the lock in the bottom left corner, enter your passwordĬlick ‘Allow’ next to the ”blocked from loading” message. Navigate to System Preferences > Security & Privacy. You can click ‘Next’ for now.Īfter reaching the end, installation will fail with the message above. You might see a prompt from macOS about not allowing unsecure system extensions. Run the VirtualBox installer just like any other installer.

Go to System Preferences > Security & Privacy. This guide has been updated for macOS Mojave as well. The VirtualBox installer fails with “The installation failed” where it “encountered an error that caused the installation to fail.” I tried to install VirtualBox on macOS High Sierra, but I got an error about kernel drivers, system extensions, and kernel modules not being installed.

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