I'd recommend connecting an appropriate USB-serial cable to the serial console
header, and seeing what it spits out there during boot.
Alternatively, load a microSD card with a recent distro (I recommend Debian):
http://elinux.org/BeagleBoardDebian
Pop the SD card in and power on the board. It should boot from the SD card. If
not, you need to hold a button down (not the power or reset buttons, the other
one).
Note that images with "flasher" in the name will re-write the eMMC with that
version. Console images are smaller and intended to be used via ssh or the
serial console.
> On Apr 20, 2016, at 21:04 , Nathan Wheeler <wheelersou...@gmail.com> wrote:
>
> Hey all,
>
> I did a search - maybe someone is better at it than I am and could help
> connect me to an explanation/solution? Anyway, here's what has happened:
>
> I got my board in the mail yesterday and connected it to my new MacBook Pro
> Retina (running OSX 10.11.3). I was able to ssh over USB after installing the
> included drivers and write/run code on the board. I didn't write anything
> special, just practiced loading a python example to the board.
>
> I didn't know that pulling the USB cable without turning the board off via
> the Power button could corrupt the eMMC onboard. I understand I should have
> read the manual, but I think this information needs to be included on any
> "quick start" info provided to beginners. (If they tell you how to turn it
> on, shouldn't they tell you how to safely turn it off?) I have a lot of
> experience with Arduino and mistakenly thought that I could unplug the
> BeagleBone from power without any other shutdown steps.
>
> So now, the board powers on and the user LEDs flash, and the board shows up
> as an external storage device on my laptop. But the IP address has changed to
> 198.168.7.1, and any attempts to ssh either result in a timeout or require
> password authentication. And the default passwords provided on Adafruit and
> other places are not working.
>
> So, my questions are:
> • How do I know if I've corrupted the data in the eMMC? Will the board act
> normally but not connect?
> • If I can't ssh via USB, will I be able to do so via ethernet, or should I
> just start over/do a restore of Angstrom?
> • Is Angstrom stiil the default distro, or are the boards shipping with
> Debian now?
> • Is this possibly an El Capitan issue? I read a little about that, but I
> downloaded and installed a HoRNDIS version that was supposed to fix the issue.
>
> Thanks for your help - I'm really looking forward to learning how to use this
> board and become part of the community. I build interactive interfaces for
> musical performance and am excited about the possibilities offered here.
>
> - Nate
>
> --
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--
Rick Mann
rm...@latencyzero.com
--
For more options, visit http://beagleboard.org/discuss
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