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

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On 02/01/2010 02:19 PM, Richard Shaw wrote:
> On Mon, Feb 1, 2010 at 1:08 PM, Jim<mickeyboa@xxxxxxxxxxxxx>  wrote:
>    
>> On 02/01/2010 01:43 PM, Richard Shaw wrote:
>>      
>>> On Mon, Feb 1, 2010 at 11:48 AM, Jim<mickeyboa@xxxxxxxxxxxxx>    wrote:
>>>
>>>        
>>>> On 02/01/2010 11:58 AM, Richard Shaw wrote:
>>>>
>>>>          
>>>>> Others may have better advice, but you can try unplugging the drive
>>>>> then as root do "tail -f /var/log/messages" and plug the drive back
>>>>> in. It may give you some hints as to what's going on.
>>>>>
>>>>> Richard
>>>>>
>>>>>
>>>>>            
>>>> Thanks Richard.
>>>>
>>>>
>>>> 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
>>>>
>>>>          
>>> At least the drive is detected so that's good but I don't like the
>>> last two lines...
>>>
>>>
>>>        
>>>> It is a ide drive with a ext3 fs on it.
>>>> I tried to mount it.
>>>>
>>>>
>>>> # mount -t ext3 /dev/sdc /mnt/harddrive
>>>>
>>>>          
>>> That's the first problem. /dev/sdc points to the drive, not a
>>> partition. Assuming the drive only has one partition you should use:
>>>
>>> # mount -t ext3 /dev/sdc1 /mnt/harddrive
>>>
>>> But that's an assumption. You can try "ls -l /dev/sdc*" to get a list
>>> of all partitions. Quick question, are you sure this drive is not
>>> using logical volume management?
>>>
>>>
>>>        
>>>> Also tried a fdisk /dev/sdc;
>>>>
>>>> # fdisk /dev/sdc
>>>>
>>>> Unable to read /dev/sdc
>>>>
>>>>          
>>> That's troubling as well, maybe a permission issue?
>>>
>>> Richard
>>>
>>>        
>> # mount -t ext3 /dev/sdc1 /mnt/harddrive
>> mount: special device /dev/sdc1 does not exist
>>
>> # ls -l /dev/sdc*
>> brw-rw----. 1 root disk 8, 32 2010-02-01 12:31 /dev/sdc
>>
>>
>> This hard drive was a install of FC10 boot hard drive and it has a;
>>
>> /   partition
>> /home   partition
>>
>> I do all my installs using those two partitions
>>      
> Well, wish I could be more help but this is past my expertise. The
> only thing I can think of is to check the drive for errors...
>
> To check the status:
>
> smartctl --attributes --log=selftest --quietmode=errorsonly /dev/sdc
>
> To run a test:
>
> smartctl --test=long /dev/sdc
>
> I believe it is attribute 5 that shows remapped sectors. This should
> ideally be 0 but a small number is sometimes acceptable.
>
> Richard
>    
# smartctl --attributes --log=selftest --quietmode=errorsonly /dev/sdc
smartctl 5.39 2009-12-09 r2995 [x86_64-redhat-linux-gnu] (local build)
Copyright (C) 2002-9 by Bruce Allen, http://smartmontools.sourceforge.net

/dev/sdc: Unknown USB bridge [0x0c0b:0xb157 (0x000)]
Smartctl: please specify device type with the -d option.


# smartctl --test=long /dev/sdc
smartctl 5.39 2009-12-09 r2995 [x86_64-redhat-linux-gnu] (local build)
Copyright (C) 2002-9 by Bruce Allen, http://smartmontools.sourceforge.net

/dev/sdc: Unknown USB bridge [0x0c0b:0xb157 (0x000)]
Smartctl: please specify device type with the -d option.


The USB bridge ,unknown
I don't know what they are talking about, and using the -d option and 
device type.


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