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In the **Save in Folder** menu, choose the external disk to which you want to save the partition image.
Click the **Start Creating** button.
After the creation of the partition image finishes:
If the creation succeeded, shutdown Tails.
You can now safely start [[recovering data from the Persistent
Storage|fsck#welcome]].
If the creation failed, try the second technique described below to [[create a partition image using `ddrescue` on the command line|fsck#ddrescue]] instead.
<h2 id="ddrescue">Creating a partition image using <span class="code">ddrescue</span> on the command line</h2>
If creating a partition image using the *Disks* utility fails, you can try this second technique using `ddrescue`, which can be more resilient to hardware failures.
The `ddrescue` utility tries to copy first the parts of the Persistent Storage that are not failing and skips over the parts that are failing. After that, you can run `ddrescue` again to try to copy the parts that failed the first time.
In the *Files* utility, navigate to the folder of the external hard where you want to save the partition image of your Persistent Storage.
Right-click in the empty space of the right pane and choose **Open in Terminal** in the shortcut menu.
Doing so opens a terminal that is configured to operate in this folder.
In the terminal, execute the following command. Replace <span class="command-placeholder">/dev/mapper/luks-xyz</span> with the device name found when [[identifying your *Persistent Storage* in the *Disks* utility|fsck#identify]].
<p class="command-template">ddrescue <span class="command-placeholder">/dev/mapper/luks-xyz</span> persistent-storage.img ddrescue.log</p>
The output of `ddrescue` looks like this:
GNU ddrescue 1.27
Press Ctrl-C to interrupt
ipos: 749404 kB, non-trimmed: 0 B, current rate: 34996 kB/s
ipos: 1446 MB, non-trimmed: 0 B, current rate: 24772 kB/s
opos: 1446 MB, non-scraped: 0 B, average rate: 33629 kB/s
non-tried: 9290 MB, bad-sector: 0 B, error rate: 0 B/s
rescued: 1446 MB, bad areas: 0, run time: 43s
pct rescued: 13.46%, read errors: 0, remaining time: 1m 31s
time since last successful read: 0s
Copying non-tried blocks... Pass 1 (forwards)
The section about **bad areas** refers to errors reading the data of your
Persistent Storage, most likely because of hardware failures.
After `ddrescue` finishes:
If bad areas were reported, try leaving your USB stick to rest for some minutes and executing the same `ddrescue` command again to copy more data.
We recommend that you replace your USB stick and [[copy the partition image
to a new USB stick|fsck#copy]] after you execute `ddrescue` several times.
If no bad areas were reported or if the same bad areas were reported after several executions of the `ddrescue` command, it means that all the data that could be rescued was copied to the partition image.
Shut down Tails.
You can now safely start [[recovering data from the Persistent
Storage|fsck#welcome]].
<h1 id="recover">Recovering data from the Persistent Storage</h1>
After [[creating a partition image|fsck#image]], you can safely try to recover data from your Persistent Storage without risking erasing more data.
We are presenting here 3 recovery techniques that work in different cases. We recommend that you try the 3 techniques one after the other.
[[Repairing the file system from the Welcome Screen|fsck#welcome]]
If the hardware of your USB stick is not failing, repairing the file system
from the Welcome Screen is likely the easiest technique.
[[Copying the partition image to a new USB stick|fsck#copy]]
If the hardware of your USB stick is failing, you might still be able to
repair the file system of your Persistent Storage after copying the
partition image to a new USB stick.
[[Analyzing the partition image using *Autopsy*|fsck#autopsy]]

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  1. Tails
  2. wiki/src/doc/persistent_storage/fsck.*.po
  3. English
GNU ddrescue 1.27
Press Ctrl-C to interrupt
ipos: 749404 kB, non-trimmed: 0 B, current rate: 34996 kB/s
ipos: 1446 MB, non-trimmed: 0 B, current rate: 24772 kB/s
opos: 1446 MB, non-scraped: 0 B, average rate: 33629 kB/s
non-tried: 9290 MB, bad-sector: 0 B, error rate: 0 B/s
rescued: 1446 MB, bad areas: 0, run time: 43s
pct rescued: 13.46%, read errors: 0, remaining time: 1m 31s
time since last successful read: 0s
Copying non-tried blocks... Pass 1 (forwards)
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