virtualbox ubuntu full screen guest additions not working

Reboot your system to reload the Kernel modules. Or simply run sudo /media/$USER/VBox_GAs_6.1.18/n To install guest additions from the terminal, navigate to the mount point of the guest additions and run the command below cd /media/$USER/VBox_GAs_6.1.18 sudo. When inserted, a dialog box which prompts you to run or cancel the Guest Additions installer is launched. Install VirtualBox Guest Additions on Ubuntu 21.04 from UI Note that before you can insert the ISO file, you need to have at least one empty IDE controller. To manually insert the VirtualBox Guest Additions ISO file on your Ubuntu 21.04 VM, navigate to Menu bar on your VM and click Devices > Insert Guest Additions CD image. Install Guest Additions ISO Automatically from Ubuntu Repositories using APT package manager.

Insert Guest Additions ISO File Manually.

Guest Addition ISO file can be inserted into the VM in two ways In order to install VirtualBox Guest Additions on Ubuntu 21.04, you need to have the Guest Additions ISO file. sudo apt update -y sudo apt upgrade sudo apt install dkms linux-headers-$(uname -r) build-essential Install VirtualBox Guest Additions on Ubuntu 21.04 If none if these packages is installed, you can simply use the APT package manager to install them. You can then install the missing tools by running the command apt update apt install dkms build-essential As you can see from the output, dkms and build-essential are not installed. The ii means that the package is installed. sudo dpkg -l | grep -E 'dkms|linux-headers-$(uname -r)|build-essential' ii linux-headers-5.11.0-11-generic 5.11.0-11.12 amd64 Linux kernel headers for version 5.11.0 on 64 bit x86 SMP Run the command below to verify if these requirements have already been installed. Install Ubuntu 21.04 Desktop on VirtualBox Install VirtualBox Guest Additions on Ubuntu 21.04 Install Required Build tools and Kernel Headersīefore you can proceed to install VirtualBox Guest Additions on Ubuntu 21.04, you first need to install required build tools, the Linux kernel headers and the support modules, if not already installed.

Virtualbox ubuntu full screen guest additions not working