In the course of, I had to put the VirtualBox guest I used in suspend mode, then tried to wake it from that mode to see if it would work. Well, putting it in suspend mode was easy. Waking it was a different matter because the usual keyboard press did not work. There has to be another method of waking it from suspend mode. Fortunately, there is. And so in this very brief article, you’ll learn how to wake a VirtualBox guest from suspend mode – from the Linux command line. The command is the same on any Linux distribution.
The VirtualBox guest is running Ubuntu 17.04 (upgraded it from Ubuntu 16.10). I put it in suspend mode by selecting the appropriate option from the user menu. Once in suspend mode, the screen will blank out and resize to 800×600.
And it will remain that way until you wake it from that mode.
![Virtualbox Virtualbox](/uploads/1/2/5/4/125489891/171131814.png)
When you create a guest operating system in VirtualBox, the machine image is created in a subfolder bearing its name under the VirtualBox VMs folder in your home directory. Within all the subfolders in that directory, is a file with a.vdi extension. That file is like an ISO image used to install a Linux or BSD distribution.