To perform a non-interactive installation of Oracle VM VirtualBox
there is a response file named
Extract the tar.gz package as described in
pkgadd -d VirtualBox-version-number -SunOS-x86 -n -a autoresponse SUNWvbox
To perform a non-interactive uninstallation, open a root terminal session and run the following command:
pkgrm -n -a /opt/VirtualBox/autoresponse SUNWvbox