unable to connect usb hdd

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1

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

2

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