<div class="caution">
<p>If the verification of the certification failed, then you might
have downloaded a malicious version of the Tails signing key or our
instructions might be outdated.
Please [[get in touch with us|support/talk]].</p>
</div>

<div class="tip">
<p>The line <code>175 signatures not checked due to missing keys</code> or similar
refers to the certifications (also called <i>signatures</i>) made by other public
keys that are not in your keyring. This is not a problem.</p>
</div>

<p>Some data might still be recovered using advanced forensics tools.</p>

In this example, the device name of the USB stick is
`/dev/sdb`. Yours might be different.

<p>You might overwrite any hard disk on the computer.</p>

<p>If you are not sure about the device, stop proceeding.</p>

<span class="command-placeholder">device</span> with the device name found in step 5

<p class="command-template">dd if=<span class="command-placeholder">tails.img</span> of=<span class="command-placeholder">device</span> bs=16M oflag=direct status=progress</p>

<p>If you get a <code>Permission denied</code> error, try
adding <code>sudo</code> at the beginning of the command:</p>

The installation is complete after the command prompt reappears.