usb hard disk not getting recognized

Abhishek Dixit abhidixit87 at gmail.com
Wed Jan 9 17:54:21 UTC 2013


On Wed, Jan 9, 2013 at 11:17 PM, Abhishek Dixit <abhidixit87 at gmail.com>wrote:

> disconnecting the USB dmesg shows
> [  107.098391] sd 7:0:0:2: [sdd] Attached SCSI disk
> [  117.861838] exe (2743): /proc/2743/oom_adj is deprecated, please use
> /proc/2743/oom_score_adj instead.
> [  706.613905] usb 2-1: USB disconnect, device number 2
>
> and again I reconnect it and run dmesg it shows
> [ 1057.504101] usb 2-1: new high speed USB device number 3 using ehci_hcd
> [ 1057.639957] scsi8 : uas
> [ 1057.641429] scsi 8:0:0:0: Direct-Access     Dell     USB Portable HDD
> 040D PQ: 0 ANSI: 6
> [ 1063.840143] scsi 8:0:0:0: uas_eh_abort_handler tag 0
> [ 1063.840154] scsi 8:0:0:0: uas_eh_device_reset_handler tag 0
> [ 1063.840158] scsi 8:0:0:0: uas_eh_target_reset_handler tag 0
> [ 1063.840163] scsi 8:0:0:0: uas_eh_bus_reset_handler tag 0
> [ 1063.952338] usb 2-1: reset high speed USB device number 3 using ehci_hcd
> [ 1064.085671] scsi 8:0:0:0: Device offlined - not ready after error
> recovery
> [ 1064.085733] scsi 8:0:0:0: rejecting I/O to offline device
> [ 1064.085749] scsi 8:0:0:0: rejecting I/O to offline device
> [ 1064.086988] scsi 8:0:0:1: Direct-Access     Dell     USB Portable HDD
> 040D PQ: 0 ANSI: 6
> [ 1064.088131] scsi 8:0:0:2: Direct-Access     Dell     USB Portable HDD
> 040D PQ: 0 ANSI: 6
> [ 1064.089211] scsi 8:0:0:3: Direct-Access     Dell     USB Portable HDD
> 040D PQ: 0 ANSI: 6
> [ 1064.090326] scsi 8:0:0:4: Direct-Access     Dell     USB Portable HDD
> 040D PQ: 0 ANSI: 6
> [ 1064.091457] scsi 8:0:0:5: Direct-Access     Dell     USB Portable HDD
> 040D PQ: 0 ANSI: 6
> [ 1064.092579] scsi 8:0:0:6: Direct-Access     Dell     USB Portable HDD
> 040D PQ: 0 ANSI: 6
> [ 1064.093698] scsi 8:0:0:7: Direct-Access     Dell     USB Portable HDD
> 040D PQ: 0 ANSI: 6
> [ 1064.094022] sd 8:0:0:0: Attached scsi generic sg2 type 0
> [ 1064.094281] sd 8:0:0:1: Attached scsi generic sg3 type 0
> [ 1064.094537] sd 8:0:0:2: Attached scsi generic sg4 type 0
> [ 1064.094788] sd 8:0:0:3: Attached scsi generic sg5 type 0
> [ 1064.095044] sd 8:0:0:4: Attached scsi generic sg6 type 0
> [ 1064.095292] sd 8:0:0:5: Attached scsi generic sg7 type 0
> [ 1064.095541] sd 8:0:0:6: Attached scsi generic sg8 type 0
> [ 1064.095785] sd 8:0:0:7: Attached scsi generic sg9 type 0
>
> Ubuntu 11.10
>



The drive correctly works in Windows 7 I can read and write data to it but
not when I want to use it in Ubuntu ,
though the same Ubuntu system I am able to use other USB drives (worth 512
mb) but not this 1 TB hard disk
which I bought recently I do not know if it will help or not but the hard
disk is of following model
http://www.flipkart.com/dell-1tb-usb-3-0-portable-hard-drive/p/itmdffjygqrxghng
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