MAC VirtualBox 安装Ubuntu全屏设置

I fixed the problem by doing:

1. Turn off 3D Acceleration in the VM settings -- that's why the Guest Additions were locking up after login.

2. Run this:

   apt-get update  apt-get upgrade  apt-get install dkms  apt-get install build-essential

3. Go to the Devices menu and tell it to install the Guest Additions. A new CDROM will appear on the desktop. Rightclick and choose the Autorun.

4. Restart the VM.

5. Now resize the VM window or choose Full Screen mode and it will resize the desktop screen resolution properly.