Calculate Linux - Gentoo - blacklist Virtualbox updates and how to find the right version number
Calculate Linux again, what a blessing it is.
I show my modified installation for Virtualbox and how to avoid further updates and freeze / mask your working Virtualbox install.
My install lines for you to copy and paste in your root terminal:
emerge -avq app-emulation/virtualbox app-emulation/virtualbox-extpack-oracle app-emulation/virtualbox-modules app-emulation/virtualbox-additions
usermod -G vboxusers -a username && reboot
ATTENTION, reboot actually means it will reboot your system after your user has been added to vboxusers group!!!!