I've created a shared folder in VirtualBox and made it mount under Ubuntu; I see it in the /media/ dir, but when I'm trying to list it I'm getting a "No permission" error message. How can I fix that?


Add your user to the vboxsf group:

sudo usermod -aG vboxsf $(whoami)
sudo reboot
  • 3
    You shouldn't need to reboot. You should be able to just log out and log back in to reload your permissions. – danmactough Apr 24 '16 at 14:52

By default Virtual Box shared folders are created with read/write permission for the guest. This can be done from the command line with:

VBoxManage sharedfolder add "VM name" --name "sharename" --hostpath "C:\test"

By adding the option --readonly we can restrict these for read only access. Use the --transient option if you only want the shares to appear in the present session but not persistent for follwing sessions. There are some limitations for shared folders (see this question for details). If prerequisites are met we may mount these shared folders manually by running the following commands in the guest:

mkdir /home/<user>/vboxshare
sudo mount -t vboxsf -o uid=1000,gid=1000 share /home/<user>/vboxshare

Of course we can also use different mount options to mount as read/only or mount with read access only to root.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.