BeagleBone Black USB networking - DHCP failing to respond

Just caught this message on the serial debug console when rebooting the BBBlack without rebooting the Mac-

The Angstrom Distribution beaglebone ttyO0

Angstrom v2012.12 - Kernel 3.8.8

beaglebone login: [ 12.013822] systemd-udevd[89]: worker [118] terminated by signal 11 (Segmentation fault)
[ 12.156035] systemd-udevd[89]: worker [118] failed while handling ‘/devices/ocp.2/47400000.usb/musb-hdrc.0.auto/gadget/net/usb0’

For the noob’s here, how are you accessing the serial console to view these messages?

Is that virtual device via the same USB connection or do I need to have an FTDI cable?

FTDI cable.