How to modify linux attitude when plugging and unplugging some devices to run some scripts?
For example, it could be nice if plugging a particular usb drive starts a backup script. Let's see.

 

Is there a way to identify univocally a partition?  udev can refer to a partition (doesn't matter the device name) using the UUID. What' UUID, how to discover it and how to use it?

How does linux interacts with the hardware? What does it happen when we plug an usb device? How are made that nice bubbles in gnome?