Install virtualbox guest additions on Debian 7 wheezy The best summary of how to get guest additions working in Debian. I used just the text install (before running 'startx') and watch out for (1)maybe mounting the guest install CD by hand (# mount /dev/cdrom /media/cdrom0), and (2) run 'sh VBoxLinuxAdditions.run' otherwise the CD is monted read-only and won't execute. in Public bookmarkswith debianvirtualbox