1. UDEV rules. /etc/udev/rules.d/60-virtualbox-guest-additions.rules Device permissions assigned to OWNER not GROUP. Currently: KERNEL=="vboxguest", NAME="vboxguest", OWNER="vboxguest", MODE="0660" KERNEL=="vboxuser", NAME="vboxuser", OWNER="vboxguest", MODE="0660" Solution: KERNEL=="vboxguest", NAME="vboxguest", GROUP="vboxguest", MODE="0660" KERNEL=="vboxuser", NAME="vboxuser", GROUP="vboxguest", MODE="0660" 2. Service startup script. /etc/init.d/virtualbox-guest-additions Script tries to use /usr/sbin/vboxadd-service (which was renamed to vboxguest-service) Solution: replace all vboxadd-service strings with vboxguest-service Reproducible: Always
app-emulation/virtualbox-guest-additions-3.1.6 x11-drivers/xf86-input-virtualbox-3.1.6 x11-drivers/xf86-video-virtualbox-3.1.6 Linux virtual 2.6.31-gentoo-r6 #1 SMP Tue Jan 19 14:47:47 CET 2010 i686 Intel(R) Core(TM)2 Duo CPU T7250 @ 2.00GHz GenuineIntel GNU/Linux
This was already fixed a long while ago.