How to set permissions for a shared folder in VirtualBox?

Question

virtual box

Hello!
In general, I can not solve the problem.
I myself on Windows, installed Ubuntu on virtual box, made a shared folder using virtual box.
But now I need to set permissions to 777 on this folder. Chmod does not help.
I understand that I can add my user to the vboxsf group to manage the folder, but I need exactly 7-ku for guests.
Thank you.

Answer 1

I myself on Windows, installed Ubuntu on virtual box, made a shared folder using virtual box.

In VirtualBox shared folders can be defined (in VM settings) in 2 ways: a). with auto-connection and b). with manual mounting.
With automount (conveniently) directories are always mounted with the rights that VirtualBox mounts.
Without automount, you mount a directory in the guest machine with a mount command, and you can set any permissions on it. You need to tinker with it, but then you can save the mount command with a script.

Answer 2

it won’t work, the question is periodically raised
if the folder in Ubuntu is visible from Windows - focus on what is there - on the rights that you set in Box