I'm attempting to mount a share in a guest OS in VirtualBox:

```
$ mount -t vboxsf share /mnt/share
/sbin/mount.vboxsf: mounting failed with the error: No such device

```

If I click the folder icon in the corner, and click "Shared Folders Settings...", I see: "share" "/Users/me/tmp/vm-transfer" "" "Full", and if I double click the row:

> 
> Folder Path: /Users/me/tmp/vm-transfer
> 
> 
> Folder Name: share
> 
> 
> (unchecked) Read-only
> 
> 
> (unchecked) Auto-mount
> 
> 
> (unchecked) Make Permanent
> 
> 
> 

The guest has the guest extensions installed:

```
$ lsmod
Module         Size  Used by
vboxvideo      1838  1
vboxguest    163929  1

```