The Intel Edison: Linux Maker Machine in a Matchbox
The console is a great place to start to see if the Edison is up and running. Connect the micro USB labeled console on the Base Block breakout to your desktop Linux machine and check dmesg to see something like the below to discover where the console is. The Base Block has power, TX, and RX LEDs on board so you can get some feedback from the hardware if things are working. If things go as they should, you will be presented with a root console to the Edison. There is no default password, you should just get right onto the console.