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[[!meta title="Resetting a USB stick or SD card using Linux"]]
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[[!inline pages="doc/first_steps/usb_reset.intro" raw="yes"]]
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[[!toc levels=1]]
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<a id="disk_utility"></a>

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Using <span class="application">GNOME Disk Utility</span>
=========================================================
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<div class="caution">
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<strong>You might overwrite any hard disk on the computer.</strong> If at some
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point you are not sure about which device to choose, stop proceeding.
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</div>
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1.  Make sure that the USB stick or SD card that you want to reset is unplugged.
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2.  Choose
    <span class="menuchoice">
      <span class="guimenu">Applications</span>&nbsp;▸
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      <span class="guisubmenu">Accessories</span>&nbsp;▸
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      <span class="guimenuitem">Disk Utility</span>
    </span>
    to start <span class="application">GNOME Disk Utility</span>.
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    A list of all the storage devices on the computer appears in the left pane
    of the window.
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3.  Plug the USB stick or SD card that you want to reset.
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    A new device appears in the list of storage devices. This new device
    corresponds to the USB stick or SD card that you plugged in. Click on it.
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4.  In the right pane of the window, verify that the device corresponds
    to the device that you want to reset, its brand, its size, etc.
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5.  To reset the device, click on the <span class="button">Format Drive</span> button.
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6.  In the popup window, choose <span class="guilabel">Master Boot Record</span>
    from the <span class="guilabel">Scheme</span> drop-down list. Then click on
    the <span class="button">Format</span> button.
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7.  In the confirmation dialog, click on the <span class="button">Format</span>
    button to confirm.
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8.  To make sure that all the changes are written to the device, click on the
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    <span class="button">Safe Removal</span> button in the right pane.
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Resetting a Tails device from itself
====================================
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If Tails is your only Linux system, you can generally reset a Tails USB stick or SD card
directly from that device while running Tails.
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1.  When starting Tails, add the <span class="command">toram</span> boot
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    option in the <span class="application">boot menu</span>. For detailed
    instructions, see the documentation on [[using the <span
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    class="application">boot menu</span>|startup_options#boot_menu]].
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2.  If Tails starts as usual, follow the instructions for [[resetting a USB stick or SD card
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    using <span class="application">Disk
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    Utility</span>|linux#disk_utility]].
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    **If the system fails to start**, that means that the computer does not have
    enough memory for this operation mode. Try with another computer, or find
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    another Linux system, such as another Tails device, to do the reset from.