Virtualbox: shared folders and Linux

Linux Mint in Virtualbox: shared folder with a dummy file (# touch x)

1. Add a shared folder via Virtualbox / Settings / Shared folders
2. The folder will mount in /media/yourSharedFolder

If you then try to mount the folder, there will be a message like "missing permissions". So the folder is there, but only the root user will have access to this paradise. The solution is this shell command:

# sudo usermod -G vboxsf -a YourUserNameHere

You'll have to reboot the system. Then lo and behold, you can try this in a terminal window:

# touch /media/yourSharedFolder/x.txt

If the file is created the hidden entrance to the palace of the king is open. Of course you could just open the folder, and add a file. But that solution is so last century.