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*nix Thread, Ubuntu 13.04 doesn't recognize USB hard drives in Technical; Hi all, I've Kubuntu 13.04 and have a problem that I can' solve. I've been looking for information and it's ...
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    Question Ubuntu 13.04 doesn't recognize USB hard drives

    Hi all,

    I've Kubuntu 13.04 and have a problem that I can' solve.

    I've been looking for information and it's quite clear that it's a problem that appears with all distros based on Ubuntu 13.04, but I've not find any solution.

    Problem is very simple: When I connect a hard drive via USB it's not recognized/automounted. I've try only NTFS partitioned disks, and as I've read, here is the problem (This problem is in 13.04, with 12.10 works ok)

    Anyone knows how to fix it?

    Many thanks in advance

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    What does dmesg say when you plug it in?

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    Thanks for the answer, kmount,

    I think the important part of dmesg is this:

    [ 499.020570] usb 1-1.1: new high-speed USB device number 5 using ehci-pci
    [ 499.114304] usb 1-1.1: New USB device found, idVendor=152d, idProduct=2336
    [ 499.114308] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=5
    [ 499.114311] usb 1-1.1: Product: JM20336 SATA, USB Combo
    [ 499.114313] usb 1-1.1: Manufacturer: JMicron
    [ 499.114315] usb 1-1.1: SerialNumber: DCA139827888
    [ 499.174869] Initializing USB Mass Storage driver...
    [ 499.174953] scsi6 : usb-storage 1-1.1:1.0
    [ 499.175040] usbcore: registered new interface driver usb-storage
    [ 499.175042] USB Mass Storage support registered.
    [ 500.171146] scsi 6:0:0:0: Direct-Access WDC WD30 EZRX-00MMMB0 PQ: 0 ANSI: 2 CCS
    [ 500.171774] sd 6:0:0:0: Attached scsi generic sg1 type 0
    [ 500.172325] sd 6:0:0:0: [sdb] 1565565872 512-byte logical blocks: (801 GB/746 GiB)
    [ 500.175166] sd 6:0:0:0: [sdb] Write Protect is off
    [ 500.175174] sd 6:0:0:0: [sdb] Mode Sense: 00 38 00 00
    [ 500.176444] sd 6:0:0:0: [sdb] Asking for cache data failed
    [ 500.176449] sd 6:0:0:0: [sdb] Assuming drive cache: write through
    [ 500.179833] sd 6:0:0:0: [sdb] Asking for cache data failed
    [ 500.179838] sd 6:0:0:0: [sdb] Assuming drive cache: write through
    [ 500.231164] sdb: sdb1
    [ 500.235377] sd 6:0:0:0: [sdb] Asking for cache data failed
    [ 500.235382] sd 6:0:0:0: [sdb] Assuming drive cache: write through
    [ 500.235385] sd 6:0:0:0: [sdb] Attached SCSI disk
    [ 1746.490446] usb 1-1.1: USB disconnect, device number 5
    [ 1869.953717] usb 1-1.3: USB disconnect, device number 4
    [ 1875.893059] usb 1-1.3: new low-speed USB device number 6 using ehci-pci
    [ 1875.990041] usb 1-1.3: New USB device found, idVendor=1bcf, idProduct=0005
    [ 1875.990046] usb 1-1.3: New USB device strings: Mfr=0, Product=2, SerialNumber=0

    lsusb returns this:

    Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
    Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 001 Device 005: ID 152d:2336 JMicron Technology Corp. / JMicron USA Technology Corp. Hard Disk Drive
    Bus 001 Device 004: ID 1bcf:0005 Sunplus Innovation Technology Inc.
    The USB 2.0 DockStation (Sharkoon QuickPort XT) is the JMicron.

    I've try a 2 terabytes disk MBR in this dockstarion and works ok (correctly recognized and mounted), the problem comes with 3 tb disks using GPT system and the JMicron USB 2.0 dockstation. The command sudo fdisk -l /dev/sdb returns this:

    AVISO: GPT (Tabla de partición GUID) detectado en '/dev/sdb'! La utilidad fdisk no soporta GPT. Use GNU Parted.


    Disco /dev/sdb: 801.6 GB, 801569726464 bytes
    256 cabezas, 63 sectores/pista, 97071 cilindros, 1565565872 sectores en total
    Unidades = sectores de 1 * 512 = 512 bytes
    Tamaño de sector (lógico / físico): 512 bytes / 512 bytes
    Tamaño E/S (mínimo/óptimo): 512 bytes / 512 bytes
    Identificador del disco: 0x4fe4e6af

    Dispositivo Inicio Comienzo Fin Bloques Id Sistema
    /dev/sdb1 1 4294967295 2147483647+ ee GPT
    Size is wrongly recognized as 801,6 gb instead of the 3000gb.

    I have to say that using a USB 3.0 dockstation there is no problem, 3tb gpt is mounted ok no matter if I connect to USB 2.0 or USB 3.0 connector:

    AVISO: GPT (Tabla de partición GUID) detectado en '/dev/sdb'! La utilidad fdisk no soporta GPT. Use GNU Parted.


    Disco /dev/sdb: 3000.6 GB, 3000592982016 bytes
    256 cabezas, 63 sectores/pista, 363376 cilindros, 5860533168 sectores en total
    Unidades = sectores de 1 * 512 = 512 bytes
    Tamaño de sector (lógico / físico): 512 bytes / 512 bytes
    Tamaño E/S (mínimo/óptimo): 512 bytes / 512 bytes
    Identificador del disco: 0x4fe4e6af

    Dispositivo Inicio Comienzo Fin Bloques Id Sistema
    /dev/sdb1 1 4294967295 2147483647+ ee GPT
    As you can see, here it's correctly recognized as 3000gb, so the problem comes with USB 2.0 dock station and 3tb gpt disk, in both usb 3.0 and 2.0 connectors.

    The problem is not caused by the dock station since in Widows 7 works ok, it looks like some kind of incompatibility of Linux and jmicron dock station.

    What can I do?

    Many thanks
    Last edited by Tassadar; 11th August 2013 at 12:13 PM.

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    Very interesting issue, I'd recommend you open a bug with Ubuntu and see what happens.

    As you say, it looks like a compatibility issue between the jmicron dock station and the OS. (out of interest, as you say it works fine on an earlier Ubuntu it sounds like a regression of sorts so should be worth fixing)

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    Many thanks again for the answer, kmount,

    Sincerely.. at this point I'm not 100% sure if it worked with kubuntu 12.10, perhaps I tryed 2 tb disks or I tried with the other dockstation, the USB 3.0 one that works ok now.

    ¿does it change something? Could you reccommend me any other thing?

    How can I open the but with Ubuntu... sorry, I'm quite new on linux and don't know how to do this.

    I've read about Intel intel rapid storage technology drivers or something like this, but I've found it to download only for windows, not linux....

    Many thanks again

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    Ah, I would double check in 12.10 first before doing anything else.

    The bug tracker for Ubuntu is available at - https://bugs.launchpad.net/ubuntu

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    Many thanks kmount, I'll try 12.10

    Regards

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    I've try Windows 7 Professional x64 and works ok and disk is recognized very fast.

    Then I've made a new installation of kubuntu 12.10 (I was using 13.04) and problem is again here, so it looks that there is a problem with the driver that Linux has included for this JMicron chip (the one that dockstation have).

    ¿Any idea?

    Thanks

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    I think there's some history on this

    search the venfor id 152d:2336 on google and there's all sorts..

    Gentoo Forums :: View topic - 3TB USB HD is showing up as 801GB

    Has a very similar issue.

    Rob

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    Thanks twin--turbo,

    I saw that thread before but if I'm not wrong there is no solution to the problem on it, am I wrong??

    Since with windows it works ok, it's clear that some kind of driver update could solve this.... is there any way to update the driver that linux uses to manage this jmicron SATA-->USB chip or something like this???

    (I'm not sure if i'm explaning ok...)

    Thanks

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