It would take some courses about Android and more to explain the file systems. That won't fit here.
If you want to root it, be sure to ask in the forum that offered the root software. That's where I go for that information.
I installed a file explorer on my Motorola RAZR XT910. it has Android 2.3.6
I see different files on the USB cable connection on the the PC and on the Motorola itself with his file explorer.
I can't find the folders that i see in the file explorer of the PC. i also made a search on the PC for one of the folders that i see directly on the Motorola but didn't find it.
I want to root and downloaded Faramount using a PC. i want to find the file with the Motorola file explorer and run it.