Cannot find USB hard disk

Dotan Cohen dotancohen at
Thu Apr 16 13:53:50 UTC 2009

> I'm pretty sure your not supposed to use a hammer or lineman pliers to
> insert a usb connector! ;-)
>> If there is nothing in dmesg or /var/log/messages the disk is not
>> visible to the system. I had the same problem once. The USB plug at the
>> disk side was a type B connector and I had inserted this plug with the
>> wrong orientation, i.e. turned around 180°. I certainly needed some
>> force to do that but it was possible. After I connected the plug
>> properly the disk worked.

Additionally, modern IDE equipment has a notch and a dead pin, to
ensure correct insertion direction. You would manage to get the power
cable in upside down before you got the IDE cable in upside down.

Dotan Cohen

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