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Plug your USB stick in the computer.
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Execute again the same command:
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Your USB stick appears as a new device in the list. Check
that its size corresponds to the size of your USB stick.
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<p class="pre command-output">/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme ∗500.1 GB disk0
1: EFI 209.7 MB disk0s1
2: Apple_HFS MacDrive 250.0 GB disk0s2
3: EFI 134.1 GB disk0s3
4: Microsoft Basic Data BOOTCAMP 115.5 GB disk0s4
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: FDisk_partition_scheme *8.0 GB disk1
1: Apple_HFS Untitled 1 8.0 GB disk1s1</p>
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Take note of the *device name* of your USB stick. In this example, the USB stick is 8.0 GB and its device name is <span class="code">/dev/disk1</span>. Yours might be different.
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<div class="caution">
<p>If you are unsure about the device name, you should stop proceeding or
<strong>you risk overwriting any hard disk on the system</strong>.</p>
</div>
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Execute the following commands to copy the USB image that you downloaded earlier to the USB stick.
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Replace:
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<span class="command-placeholder">tails.img</span> with the path to the USB image
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<div class="tip">
<p>If you are unsure about the path to the USB image, you can insert the
correct path by dragging and dropping the icon of the USB image from
<span class="application">Finder</span> onto <span class="application">
Terminal</span>.</p>
</div>
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<span class="command-placeholder">device</span> with the device name found in step 6
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<div class="tip">
<p>You can try adding <span class="code">r</span> before <span class="code">disk</span> to make the installation faster.</p>
</div>
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<p class="pre command">diskutil unmountDisk <span class="command-placeholder">device</span></p>
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<p class="pre command">dd if=<span class="command-placeholder">tails.img</span> of=<span class="command-placeholder">device</span> bs=16m && sync</p>
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You should get something like this:
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<p class="pre command-example">dd if=/Users/me/tails-amd64-3.12.img of=/dev/rdisk9 bs=16m && sync</p>
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If no error message is returned, Tails is being copied on the USB
stick. The copy takes some time, generally a few minutes.
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<div class="note">
<p>If you get a <span class="guilabel">Permission denied</span> error, try
adding <code>sudo</code> at the beginning of the command:</p>
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<p class="pre command">sudo dd if=<span class="command-placeholder">tails.img</span> of=<span class="command-placeholder">device</span> bs=16m && sync</p>
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<p>If you get an <span class="guilabel">invalid number ‘16m’</span> error, try
using <code>16M</code> instead:</p>
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