Re: Using a USB external enclosure with a PATA hard drive ?

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On 02/01/2010 06:20 PM, Ed Greshko wrote:
> Jim wrote:
>    
>> tail -f /var/log/messages ;
>>
>> localhost kernel: usb 2-3: new high speed USB device using ehci_hcd and
>> address 6 localhost kernel: usb 2-3: New USB device found,
>> idVendor=0c0b, idProduct=b157
>> localhost kernel: usb 2-3: New USB device strings: Mfr=10, Product=11,
>> SerialNumber=3
>> localhost kernel: usb 2-3: Product: DMI USB2.0 Storage
>> localhost kernel: usb 2-3: Manufacturer: DMI
>> localhost kernel: usb 2-3: SerialNumber: 2009102609E0
>> localhost kernel: usb 2-3: configuration #1 chosen from 1 choice
>> localhost kernel: scsi10 : SCSI emulation for USB Mass Storage devices
>> localhost kernel: usb 2-5: reset high speed USB device using ehci_hcd
>> and address 4
>> localhost kernel: scsi 10:0:0:0:
>> Direct-Access                                    PQ: 0 ANSI: 2 CCS
>> localhost kernel: sd 10:0:0:0: Attached scsi generic sg3 type 0
>> localhost kernel: sd 10:0:0:0: [sdc] Attached SCSI disk
>> localhost kernel: usb 2-5: reset high speed USB device using ehci_hcd
>> and address 4
>> localhost kernel: EXT3-fs: unable to read superblock
>> localhost kernel: EXT3-fs (sdc): unable to read superblock
>>
>>
>> It is a ide drive with a ext3 fs on it.
>> I tried to mount it.
>>
>>
>> # mount -t ext3 /dev/sdc /mnt/harddrive
>> mount: wrong fs type, bad option, bad superblock on /dev/sdc,
>>          missing codepage or helper program, or other error
>>          (could this be the IDE device where you in fact use
>>          ide-scsi so that sr0 or sda or so is needed?)
>>          In some cases useful info is found in syslog - try
>>          dmesg | tail  or so
>>
>> # mount -t ext3 /dev/sgc /mnt/harddrive
>> mount: special device /dev/sgc does not exist
>>
>>
>> Also tried a fdisk /dev/sdc;
>>
>> # fdisk /dev/sdc
>>
>> Unable to read /dev/sdc
>>
>>      
> Have you used this enclosure and drive successfully in the past?  If
> not, another thing to consider is power.
>
> Years ago I recall having something similar.  The problem turned out to
> be that the USB port wasn't supplying sufficient power to the enclosure
> and the drive.  The enclosure had an option to power it externally.
> Once I did that, all was well.
>
>
>
>    
This enclosure is externally powered.
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