Hi, this is a pretty basic question, but just got a new Edison and Explorer Board, and I'm trying to flash it with jubilinux. When I get to the step about running "sudo screen /dev/tty.usbserial-* 115200" the output I receive is different than that in the example. Specifically, instead of returning "edison login:" it returns "FZEDC711D00AJA501 login:" which I'm assuming is the serial number of the Edison? Either way, it doesn't accept "root" as a username without a password or root/edison to login. Any ideas? This was a second hand Edison, is it possible there is still a password in place from the previous owner?