I am using a powered 2A hub for the HD already. It was a cheapie, perhaps they are being a bit generous with their 2A description

I'll see if I can borrow a couple of powered hubs and see which one works, then buy it.

Thanks
Ash

RaTTuS wrote:it will be a power problem
you can probably ignore the back power issue tbh
you ned to supply more umph to get it to run I think

Do you think it's the Pi that is underpowered or the HD. Any suggestions on what PSU to get?

Thanks for your help!
Ash

Hi Amyren, Thanks for your help. When I boot the pi with the hd connected it hangs for a long time and times out like before. I disconnected the red wire in the cable from the usb hub to the pi. Now it doesn't seem to find the HD at all, just the hub. A flash drive connected to the same usb hub does...

*Update* When I disconnected it from one USB socket and stuck it in the other it did find the disk, but timed out when spinning it up: - [ 801.727402] usb 1-1.2: USB disconnect, device number 4 [ 801.727432] usb 1-1.2.1: USB disconnect, device number 5 [ 804.263625] usb 1-1.3: new high-speed USB dev...

Hi Rattus, Now it doesn't mention the HD at all, just detects the hub Sep 19 21:22:46 raspberrypi kernel: [ 425.856359] usb 1-1.2: new high-speed USB device number 4 using dwc_otg Sep 19 21:22:46 raspberrypi kernel: [ 425.957272] usb 1-1.2: New USB device found, idVendor=1a40, idProduct=0101 Sep 19 ...

Thanks guys, I'll do this when I get home from work and report back!

Thanks
Ash

Hi Folks, I'm a bit of a linux novice. I have an external 1 TByte Western Digital elements hard drive. It isn't appearing in /dev/ like my usb stick does. My setup: - - Powered USB hub to power the hard drive (2 Amp) - USB hub connected to the Pi - Pi separately powered by a micro usb + usb plug (1 ...