$ sudo apt install build-essential dkms linux-headers-$(uname -r) Then install the necessary packages to build the kernel modules and approve the additional disk space needed. You will be prompted to approve the extra disk space needed for the upgrade. I used a user account with sudo privileges. They started with this error message.Ĭompleting the following steps helped me resolve this issue.įirst update the Linux OS, even if it is a fresh install. When installing Guest Additions on Oracle VM VirtualBox 20.04, I ran into some challenges.

(If this did not go well for you, please keep reading.) Change the machine window size to check if automatic adjustments are made properly. If everything goes well, you will be prompted to run the installation and restart your virtual machine. To install Windows Guest Additions, mount the Guest Additions ISO file by clicking the Devices dropdown menu and selecting the Insert Guest Additions CD Image menu item. Installation can be easy if you do not run into error messages, which I did.

The most notable feature is the ability to resize the machine’s window and automatically adjust the screen resolution. There are many reasons to install Windows Guest Additions for Oracle VM VirtualBox: mouse pointer integration, enable shared folders and clipboard, optimal video support, as well as generic host/guest communications.

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