And it will pop-up an error dialog:ĭon’t know why but do following steps will fix the issue in next Guest boot:ġ.) Power off the Guest OS, then go to its Settings page. It happens in my case when trying to install the additions in Elementary OS 6. Sometimes it outputs an error “Unable to insert the virtual optical disk … into the machine …” when you click on the menu option in VM (VirtualBox Machine). Unable to insert the virtual optical disk: Just click “ Run” and it starts to install the guest additions after you typing user password in authentication dialog.Īfter installation, the additions will function in next boot of the Guest OS. Usually, a pop-up dialog will open and prompt whether to run autorun script or not. Then go to VM menu “ Devices -> Insert Guest Additions CD image“. Install Guest Additions in the Normal Wayįirstly, start and login the Guest OS. However, it might not function in some cases. Installing the software suite is easy via a menu option. It’s useful when you try to share folder and/or clipboard between guest and host, enable USB support etc.

Guest Additions is a set of device drivers and system applications to install in Guest OS. This simple tutorial shows how to install Virtualbox Guest Additions in Ubuntu based systems, e.g., Linux Mint, Zorin OS and Elementary OS, with fix or workaround for common issues.

Ubuntu for vbox