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How can I install VirtualBox Guest Additions from a Bash script, in a unattended way?

Whenever I run apt-get -y install dkms virtualbox-guest-dkms from the terminal I'm presented with a interactive dialog, is there any way to safely bypass or pre-select the dialog choices?

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up vote 5 down vote accepted

Try doing this :

DEBIAN_FRONTEND=noninteractive apt-get -y install dkms virtualbox-guest-dkms

See http://serverfault.com/questions/227190/how-do-i-ask-apt-get-to-skip-any-interactive-post-install-configuration-steps

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