How to install VirtualBox Guest Additions in a Debian virtual machine - Unix & Linux Stack Exchange

How to install VirtualBox Guest Additions in a Debian virtual machine - Unix & Linux Stack Exchange:

For Debian 9, enable backports with contrib repository to /etc/apt/sources.list

• deb http://ftp.uk.debian.org/debian stretch-backports main contrib

Then update and install:

• sudo apt update
• sudo apt install virtualbox-guest-utils virtualbox-guest-x11 virtualbox-guest-dkms dkms linux-headers-amd64 build-essential

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