Robert,

I am not sure what that file that your referring to is, but this is the 
output of the cat command:

ubuntu@arm:/boot/uboot$ cat /proc/cmdline
console=ttyO0,115200n8 root=UUID=bdf02b76-8d35-4aa7-9cae-bae8e9805f03 ro 
rootfstype=ext4 rootwait fixrtc ip=

Doesn't seem very informative, but maybe that's because I am not using it 
right?

On Friday, November 1, 2013 12:07:41 PM UTC-5, RobertCNelson wrote:
>
> On Fri, Nov 1, 2013 at 12:03 PM, Jacob Stockton 
> <[email protected] <javascript:>> wrote: 
> > Hello all, 
> > 
> > I have been out of the BBB world for a few months, but after loading 
> RCN's 
> > new beaglebone black Ubuntu distro (10/8) I am having difficulties 
> modifying 
> > the uEnv.txt file. I can easily open the file in nano, edit the file and 
> > save the file, but when I reboot to activate the device tree changes 
> > (turning off HDMI, adding UARTs, etc.) none of the changes I made are 
> > reflected in the uEnv.txt file. Has the method to load/unload device 
> trees 
> > changed? 
>
> Verify those changes are actually being enabled.. 
>
> cat /proc/cmdline 
>
> Regards, 
>
> -- 
> Robert Nelson 
> http://www.rcn-ee.com/ 
>

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