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    SubjectFwd: Safely remove option shows with Micro SD Card connected to Linux through an Android phone
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    Hi All,

    I connected an Android phone using USB cable to my machine running
    Linux (Linux 3.0, 3.2, 3.5). Mounted the SD card in phone in system
    (phone is just a pass through I guess). When I choose "Safely Remove"
    option in nautilus file manager (gnome's default file manager) I got
    an error saying

    "Error detaching: helper exited with exit code 1: Detaching device /dev/sdb
    USB device: /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-5)
    SYNCHRONIZE CACHE: OK
    STOP UNIT: FAILED: No such file or directory"

    and it goes to unmounted state (yes it should go to and this is not a
    problem). But I am not able to find the reason for the above error
    message pop-up. If I choose "Eject" option then things are fine (I
    think Eject does more than un-mounting the file system).

    I think "safely remove" tries to cut the power supply to the device
    but eject does not do that. Is that correct? If the device cannot be
    powered down (due to battery charging) why this option is shown? Is
    kernel exposing such capability to the user space?

    I am not sure whether this is the correct place to ask this question.
    If this is not the correct place please direct me to correct place.

    Note: Previous attempt to send this mail to linux-kernel and linux-usb
    mailing list failed. So resending this again. Please bear with me
    nautilus-list people.

    Thanks and Regards,
    PrasannaKumar


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