Read only unified directory My end goal is that I want a samba share that displays all of the folders across several disks as one unified, read-only folder. This is for a NAS/media server setup. Is there a way to create a unified folder that contains all of the subfolders of each of these drives in this way?

You can use a union file system like `aufs` on Linux:


set /disk1 /disk2 /disk3
mount -t aufs -o br"$(printf ':%s=ro' "$@")" aufs /union/disk


(if files are common between the disks, the one from `disk1` takes precedence)