in module “shared folders” it is possible to create a folder, assign it to some users / groups and present it as a CIFS to the public.
Can I use an existing folder / mount point without creating it:
In my case, I would like to a share the content of an external USB device containing less valuable data. Such scenarios are e.g.
a static DVD ROM with an annually replaced media containing articles as pdf
some media folder on /mnt/ containing e.g. mp3 for which I do not want to use valuable RAID5 (RAIDZ1) hard disk space and where no backup is required.