USB booting :: Can't get my pen drive recognized

I can't find where my usb pendrive is >< normally it's thrown  under sda sda1, but i can't seem to find it.  

I'm such a newb ><

How can i find out where it is, or if its not found.. force it to be found?

Edit: Using the USB viewer i see its connected , it says the info is stored here :  
file:///proc/bus/usb/devices

Edit 2: I'm assuming i need to somehow take my USB pend drive and make it work under "dev/sda1 or whatever" then once its found under that i need to "mount" it, then i should be good to go .. i think..

I hate not knowing stuff .

Interestingly enough.. 2 restarts  later and its recognized.. and its all set up now to boot.

<3