please : how does the automount work ?

[LarryT]

I need to disable automount during an operation, and restart it after 
this operation. But i would like it automaticaly.
Does anyone know how automount work, for i try to make my stuff ?

(the problem comes using GParted to create partition on usb box. When 
creating the new partition is immediatly mounted , so i get an error. If 
i disable the automount manually , it works ; but i would like to know 
how to make this automaticaly, adding code in GParted soft)

thx :)