Refer to your own hands-on implementation of the Web to share files:
1. Open the virtual machine into Ubuntu system, install the enhanced Feature Pack first
2. After installing the restart virtual machine, create a folder under window that is dedicated to sharing
3. Switch to Ubuntu system and set up the shared folder in the shared folder of the device (uncheck Auto mount)
4. After setting the share name, open the terminal in Ubuntu system
5. First sudo su switch to root identity
6, execute the command, the new Bdshare folder in the mount point directory is used to share files with Windows
7, then execute mount-t vboxsf ushare/mnt/bdshare (share name mount point), you can complete the settings of the shared folder
When you are finished, you can create a new file in both systems to see if the new file exists in the system.
Cons: Re-mount each time you restart the virtual machine
How to share files between Ubuntu and Windows