root@virtual:[209] /mnt/cdrom # ./VBoxLinuxAdditions.run Verifying archive integrity... All good. Uncompressing VirtualBox 4.2.20 Guest Additions for Linux............ VirtualBox Guest Additions installer Removing installed version 4.2.20 of VirtualBox Guest Additions... Copying additional installer modules ... Installing additional modules ... * Removing existing VirtualBox non-DKMS kernel modules ... [ !! ] * Building the VirtualBox Guest Additions kernel modules ... * Building the main Guest Additions module ... * Look at /var/log/vboxadd-install.log to find out what went wrong [ !! ] (Look at /var/log/vboxadd-install.log to find out what went wrong) * Doing non-kernel setup of the Guest Additions ... [ ok ] * Installing the Window System drivers ... * Installing X.Org Server 1.14 modules ... [ ok ] * Setting up the Window System to use the Guest Additions ... [ ok ] You may need to restart the hal service and the Window System (or just restart the guest system) to enable the Guest Additions. * Installing graphics libraries and desktop services components ... [ ok ]