（类似于在 Debian 上卸载默认 VBoxGuestAdditions但安装了 Ubuntu 的问题，并且那里的解决方案对我不起作用？）
实际上，问题似乎出在 dpkg/apt-get 而不是 virtualbox 或其 linux 来宾添加上：
host:/media/VBOXADDITIONS_4.2.10_84104$ dpkg -l | grep virtualbox
rc virtualbox-guest-utils 4.1.12-dfsg-2ubuntu0.2 x86 virtualization solution - non-X11 guest utilities
rc virtualbox-guest-x11 4.1.12-dfsg-2ubuntu0.2 x86 virtualization solution - X11 guest utilities
host:/media/VBOXADDITIONS_4.2.10_84104$ sudo apt-get remove virtualbox-guest-utils virtualbox-guest-x11
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package virtualbox-guest-utils is not installed, so not removed
Package virtualbox-guest-x11 is not installed, so not removed
0 upgraded, 0 newly installed, 0 …