card. This involves a bit more than just a copy
operation. We must rely on the services of yet
another free utility called Win32 Disk Imager.
Screenshot 5 shows Win32 Disk Imager at work,
moving the raw disk image from the Windows
laptop to the 4 GB microSD card.
Now that we have a good Bone disk image
on the microSD card, let’s install Angstrom. All we
have to do is remove power from the Bone, insert
the microSD card containing our Angstrom image,
hold down the boot switch, and apply power.
After a few seconds, the Bone’s bank of LEDs
will begin to flash. At that point, you can release
the Bone boot switch and the Flashing process
will continue. All four of the Bone’s LEDs will
illuminate solidly when the Flashing has
completed. You can see the boot switch in the
lower left corner of Photo 1 and the LED bank in
the rightmost bottom corner of Photo 1.
There are some basic networking things that
Angstrom and the Bone just do. I’ll attach the
newly loaded Bone to the EDTP workshop LAN.
I should be able to log on to the Bone from the
Linux laptop, which is also on the EDTP workshop
LAN. Check out Screenshot 6. I’ve opened up a
terminal window on the Linux laptop and used
Secure Shell (SSH) to remotely log on to the
Bone. I issued ip addr to obtain the Bone’s IP
address. The Bone returned its loopback address
(127.0.0.0) and the eth0 interface IP address
Now that we know the Bone’s IP
address, the beaglebone.local can
optionally be replaced with the Bone’s IP
address at login time. As you have already
ascertained, using the beaglebone.local
method is the easier login route.
Loading the Raspberry Pi
Let’s turn our attention to the Pi.
I happen to have the 512 MB version
March 2014 69
■ Photo 1. This is an aerial view of my BeagleBone
Black. What you don't see are the microSD, HDMI,
and USB sockets which are mounted on the other
side of the printed circuit board.
■ Screenshot 6. This is
elementary Linux but it
serves its purpose. Being
able to log in to our
BeagleBone Black via the
EDTP workshop LAN is
a positive sign. As you
can see, there are a few
Linux "dialects" exposed
in this capture.
■ Photo 2. The Raspberry Pi and
BeagleBone Black are first cousins. It's up to
you to decide which is the ugly one. Beauty
is truly in the eye of the beholder.
Or should I say, beauty depends
on the beholder's application.