Hi
I installed last version of raspbian jessie on my rasp2.
This version make an automaticall mount of external usb disk.
I needed to remove it.
I found a graphic way acting on some flags inside settings of file manager.
You can find them here, sorry for italian.
Menù->Accessori->File Manager->modifica->preferenze->gestione volumi
Ciao
I installed last version of raspbian jessie on my rasp2.
This version make an automaticall mount of external usb disk.
I needed to remove it.
I found a graphic way acting on some flags inside settings of file manager.
You can find them here, sorry for italian.
Menù->Accessori->File Manager->modifica->preferenze->gestione volumi
Ciao