Install VirtualBox Guest Additions (address VirtualBox in Ubuntu resolution too small)

problem: VirtualBox in Ubuntu resolution is too small, the operation is extremely non-aspect.

Workaround: The VirtualBox Guest additions needs to be installed. The steps are as follows:1. Download VirtualBox Guest additions, download from here;2. Add a virtual optical drive for the host;

3. After entering the system, click "Device", "Install Add function", you can mount the installation from the optical drive just added (if these control menus do not appear, you can call Ctrl + C );

4. If you are prompted to install the appropriate header file, use the command sudo apt-get install linux-headers-$ (uname-r) to complete;5. After the installation OK, restart the system, you can set the host "Automatically adjust the size of the form";

Install VirtualBox Guest Additions (address VirtualBox in Ubuntu resolution too small)