I tried connecting the same hdd and powered USB hub to a Raspberry Pi, and 
it worked perfectly. I then tried connecting a USB memory stick directly to 
the BBB, and that didn't work either. I've never used a BBB, so don't know 
what to expect, but could it be that my copy is just defective? Ie a 
hardware problem with the USB connector or bus?

Matthew Fleming

On Thursday, October 16, 2014 8:06:02 PM UTC-5, Matthew Fleming wrote:
>
> Hi,
>
> I have a USB-powered portable hard drive which I've connected to the BBB 
> via a powered USB hub. The hub can supposedly supply 2.5 A, which I think 
> should be enough. The light on the drive comes on, but debian on the BBB 
> does not create a device for it or try to mount it. That is, there is no 
> /dev/sda or anything similar. lsusb shows only:
>
> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>
> Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>
>
> dmesg shows multiple errors like:
>
>
> 56.727916] hub 1-0:1.0: port 1 not reset yet, waiting 200ms
>
> [   56.931012] hub 1-0:1.0: port 1 not reset yet, waiting 200ms
>
> [   57.134166] hub 1-0:1.0: port 1 not reset yet, waiting 200ms
>
> [   57.337258] hub 1-0:1.0: port 1 not reset yet, waiting 200ms
>
> [   57.337303] hub 1-0:1.0: port_wait_reset: err = -16
>
> [   57.337341] hub 1-0:1.0: port 1 not enabled, trying reset again...
>
> [   57.337376] hub 1-0:1.0: Cannot enable port 1.  Maybe the USB cable is 
> bad?
>
> I was able to mount the drive on a laptop through the same hub. I had 
> previously used the BBB's USB port to connect a keyboard and a mouse 
> through a USB-powered hub.
>
> Any advice would be much appreciated.
>
> Matthew Fleming
>
>
>

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