Exit Zen
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[[!meta title="Recovering data from the Persistent Storage when it has file system errors"]]
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<p>If instead, your Tails USB stick doesn't start, refer to our instructions on
[[recovering data from the Persistent Storage when Tails doesn't
start|recover]].</p>
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[[!img repair.png link="no" class="screenshot" alt="File System Errors dialog in Welcome Screen"]]
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Try this technique first if the hardware of your USB stick is not failing.
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[[Create a partition image using `ddrescue` on the command line|fsck#ddrescue]]
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Try this technique first if the hardware of your USB stick is failing.
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Using `ddrescue` is more difficult but is better than the *Disks* utility to
recover data if the hardware of your USB stick is failing.
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<h2 id="disks">Creating a partition image using the <i>Disks</i> utility</h2>
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When the hardware of your USB stick is not failing, using the *Disks* utility is the simplest way of creating a partition image of your Persistent Storage.
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<h3 id="external">Preparing the external hard disk</h3>
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[[Set up an administration password|doc/first_steps/welcome_screen/administration_password]].
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Choose to start without unlocking your Persistent Storage.
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Choose **Applications&nbsp;▸ Files** to open the *Files* utility.
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Plug in the hard disk on which you want to save the partition image of your Persistent Storage. You need as much free space as the size of your Persistent Storage, usually 8&nbsp;GB less than your Tails USB stick.
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A new disk appears in the sidebar of the *Files* utility.
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Right-click (on Mac, click with two fingers) on the new volume that appeared in the sidebar of the *Files* utility and choose *Properties* in the shortcut menu.
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Take note of the free space in the disk.
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<h3 id="identify">Identifying your Persistent Storage in the <i>Disks</i> utility</h3>
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Choose **Applications&nbsp;▸ Utilities&nbsp;▸ Disks** to open the *Disks* utility.
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In the left pane of the *Disks* utility, identify your Tails USB stick in the list of storage devices.
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