I googled around and added the following line to uEnv.txt and rebooted:

optargs=capemgr.enable_partno=BB-UART1,BB-UART2,BB-UART4,BB-UART5

Now I have /dev/ttyO1-5 but I don't know if they work yet.

On Saturday, November 29, 2014 7:25:54 AM UTC-5, Steve G wrote:
>
> 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.
>
>>
>>

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