VirtualBox Ubuntu shared folder is empty
Found my answer

Assumption: "VirtualShare" is the shared folder name set up via Devices | shared folders ... menu

sudo mkdir /mnt/MyShare
sudo mount -t vboxsf VirtualShare /mnt/MyShare


AH! Now I can see the files in /mnt/MyShare/VirtualShare/


the mounting :( does not survive a restart/reboot


This answer is bewildering because the VirtualBox documentation explicitly states that auto mounting is done in /media directory. And indeed, the shared folder is created - but its empty.

Further, I did/do not understand the significance of /mnt directory. That looked arbitrary to me, but apparently not. ../MyShare piece of it is; use any name you wish.

Now if I could only delete all those folders I created during experimentation. And to think I used to be an absolute wiz on the CP/M command line! (that sure dates me!!)