Virtualbox Guest Additions for Debian sid guest

The whole process is very simple:

  • Login as root or do a su root or better do a sudo
  • Update APT database with
apt-get update  
  • Update the system with
apt-get dist-upgrade  
Note: The next step is needed the first time only
  • Install the following packages
apt-get install build-essential module-assistant  
  • On the Virtualbox Devices menu, click Insert Guest Additions CD image…
  • Mount the CD via command line or File Manager
  • Open terminal and run
sh /media/cdrom/  

If, for some reason, the Insert Guest Additions CD image… does not make the CD available in the guest, it can be from the .VirtualBox directory in the home directory of the host machine: