USB, Toshiba

[Zbigniew Koziol]

This unit has own power supplier.

I will continue on the subject in about 12 hours.

zb.

On 19/01/11 01:16 AM, Duncan MacGregor wrote:
> In my experience, some USB devices do not register unless they go through a
> powered hub that has a power supply of well more than 1 amp. A USB device can
> require 500mA, and some 2.5" drives require more than that.
>
> If a USB device has insufficient power, it may register under  ' dmesg ', but
> not be picked up otherwise. Connecting through a powered hub with, say,  a
> 2.5amp power supply solves the problem.
>
>
> Duncan
>
> On Tuesday 18 January 2011 12:40:43 you wrote:
>> On Tue, Jan 18, 2011 at 12:36 PM, Jason Shaw<grazer-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org>  wrote:
>>> I would think that it should "just work" by mounting it.  Have you run
>>> dmesg when you plug the drive in/power it on to see if Linux notices
>>> something plugged in?  Take a look at /dev/ to see if there is
>>> /dev/sd[bcdef]1, which should be one letter beyond your optical drive
>>> (if you have one).  So, if your hard disk is sda, and optical drive is
>>> sdb, then your external drive will most likely be sdc.
>>> dmesg is your best starting point though as it will show you the device
>>> name so that you can mount it manually.
>>> -jason
>> Indeed, dmesg is important. I have an external drive that only seems
>> to work through the super-short cable that came with it, but not
>> through a longer cable or a hub, powered or otherwise. The power light
>> comes on but it doesn't get recognized - I suppose the power is
>> insufficient to actually make the drive go, blinkenlight
>> notwithstanding.
>> --
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