How to handle different HD (mounted in folders from the FSTAB) in the same Nautilus? for example, I have mounted my music hd in Music folder, when I click in Music folder another instance of Nautilus is open. And that with all the rest of HDs. Is posible disable that?
If you want to hide
fstab mounted drives from the Launcher, you can do it this way:
dconf-editor if you haven't already.
dconf-editor and scroll down to com → canonical → Unity → devices and enter the UUID of the mount in blacklist.
Here's an example of what it looks like on my system.
This is a duplicate of the following question, which includes a more robust answer (the given one is only useful for permanently attached storage):