mtab question

[Manu <seatmanu@yahoo.com>]

Hi Everyone

I have a question concerning my mtab

I see the following line :

proc /proc proc rw 0 0
sysfs /sys sysfs rw 0 0
devpts /dev/pts devpts rw,gid=5,mode=620 0 0
tmpfs /dev/shm tmpfs rw 0 0
usbfs /proc/bus/usb usbfs rw 0 0
/dev /.dev unknown rw,bind 0 0
none /dev tmpfs rw,size=5M,mode=0755 0 0


is it needed? 
if yes in what circumstances?

if no, why was it created by default?
the only one I understand  is usbfs (maybe for usb
devices)

any documentation somewhere maybe?
Thanks

Manu


		
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