You could backup/copy the entire virtualbox VM which consist of the following files and folder
To restore the backup, click
VirtualBox -> Machine -> Add and select the
If you have snapshots in your VM, you will bump into the following error:
Fail to open virtual machine: a differencing image of snapshot could not be found
To solve this issue, click
File -> Virtual Media Manager -> Add.
- Select the Snapshots in sequence, oldest first.
After add Virtual Hard disk file using
Virtual Media Manager, perform
Machine -> Add and select the
.vbox file again.
NOTE: Another option might be using
File -> Export Appliances. I didn't try this though, but I believe this method will remove all snapshots.