If the CD still was not there you may have to manually add the VBoxGuestAdditions.iso as a CD-ROM in the Virtual Box Manager Storage menu. In some systems the Virtual Box Guest Additions CD icon may not be shown on the desktop, but will be accessible from the Places menu.
Guest Additions need a reboot of your guest OS to take effect. In case the system is set up to autorun a CD it should just open the following autorun dialogue (if not select the CD symbol, choose open, then choose Open Autorun Prompt)Īfter having entered your credentials for root access the guest additions will build as seen from the terminal output: The guest additions is mounted as a virtual CD visible on the launcher: This will build and install the vbox kernel modules needed. Next step is to run the autorun.sh script (as root) on this mounted CD by opening the drive and clicking on the "Run Software" button. To install the Guest Additions we will have a CD icon on our desktop as soon as the virtual drive is mounted: To install we need to run the installer script n as root or from the Autorun Prompt (see below). iso will be loaded but not installed in your guest OS. Selecting Devices -> Install Guest Additions (or press Host+ D from the Virtual Box Manager) the Guest Additions CD.
You can run this command in a terminal to install both: sudo apt install build-essential dkms
It is also recommended to have dkms installed (see below - Note 4). In case the Guest Additions fail to build we may have to install the Linux kernel headers (see How do I install kernel header files?) or build-essential tools in addition. Installing Guest Additions from Virtual Box Manager In the guest you will then have access to a CD-ROM with the installer. iso file as a CD in your virtual machine's settings. iso file with an image of the OSE edition of the guest additions CD will install in the host directory /usr/share/virtualbox/VBoxGuestAdditions.iso. sudo apt-get install virtualbox-guest-additions-iso It is not recommended to install these in newer releases of Virtual Box as obtained from the Oracle repository (see below).Īlternatively we can install the package virtualbox-guest-additions-iso in the host Ubuntu. This will install guest additions matching the Virtual Box version as obtained from the repositories. In case we have installed the OSE edition of Virtual Box from the repositories we can add the guest additions from the repositories in the guest. Installing Guest additions from the repositories If you have trouble installing Ubuntu in a VirtualBox VM, because the installer window does not fit the low resolution screen size, you can move the window with Alt+ F7.
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