...
A question for those of you running these block erupters on their raspberry pi:
Where in /dev/ do you find these? Is it /dev/ttyUSB1 or /dev/bus/usb/ or somewhere like that? Does some driver need to be installed for them to show up? I plan on trying to use bfgminer first with the -S all option.
They will show up as /dev/ttyUSBx. No need to install a driver, the USB2Serial driver is preinstalled on a rpi.

I dont know if it would make a difference but do you have any recommendations for a USB hub that i could use with a raspberry pi? One that can power at least four of these block erupters.