Beagleboard rev. C4 and serial communication

Beagleboard C4 needs conversion from the IDC10 pin header to D-Sub 9 Female cable.

Female D-Sub 9 (looking from the front, not the pins):

Conversion goes:
Header - Connector
2------->3
3------->2
5------->5

Ok, then you need the USB2Serial converter. I've got Digitus, which on Mac uses Prolific PL 2303 driver, downloaded from here. (EDIT: Prolific.tw site is crock, their drivers don't seem to work with Mountain Lion ATM, download FTDI virtual com driver instead)

To get to the serial console, find your usb2serial device

ls /dev/tty.*

My device is displayed as:

/dev/tty.usbserial-FTFE6UC8

So, use screen command:

screen /dev/tty.usbserial-FTFE6UC8 115200