I noticed that on my BBB running the RCN demo image from August 
(debian-7.6-console-armhf-2014-08-13) on a microSD card the uEnv.txt file 
is actually in /boot/uboot, not in /boot.  Also there was a warning in 
uEnv.txt "##Note: On the BeagleBone Black, there is also an uEnv.txt in the 
eMMC, so if these changes do not seem to be makeing a difference..."  Since 
I'm booting directly from microSD maybe it's looking here though I don't 
think eMMC is even mounted.

On Friday, November 28, 2014 5:27:11 PM UTC-5, RobertCNelson wrote:
>
> On Fri, Nov 28, 2014 at 4:22 PM, Steve G <[email protected] <javascript:>> 
> wrote: 
> > Thanks that got me a lot further along. 
> > 
> > The problem I have now is the serial ports I believe I enabled didn't 
> appear 
> > in the /dev directory. 
> > 
> > What I did was uncomment the lines like the following in 
> > am335x-boneblack.dts, recompiled and installed: 
> > 
> > #include "am335x-bone-ttyO1.dtsi" 
> > 
> > I have /dev/ttyO0, ttyS1, ttyS2 and ttyS3  but I was expecting more 
> ttyO* 
> > devices. 
>
> ^ that should have gotten you /dev/ttyO1... 
>
> btw, if all you need to do is enable ttyO1 you can also do in 
> /boot/uEnv.txt: 
>
> dtb=am335x-boneblack-ttyO1.dtb 
>
> Which is boneblack + ttyO1 enabled.. 
>
> (I've done this for all device + one cape setups') 
>
> Regards, 
>
> -- 
> Robert Nelson 
> http://www.rcn-ee.com/ 
>

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