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This verification technique uses the OpenPGP Web of Trust and the certification made by official Debian developers on the Tails signing key.
sudo apt update && sudo apt install debian-keyring
<div class="step-image">[[!img inc/infography/download.png link="no" alt=""]]</div>
<h1 id="verify" class="step">Verify your download</h1>
<div class="step-image">[[!img inc/infography/verify.png link="no" alt=""]]</div>
The output of this command should be the following:
<div class="step-image">[[!img inc/infography/install-tails.png link="no" alt=""]]</div>
Make sure that the USB stick on which you want to install Tails is unplugged.
Execute the following command:
<p class="pre command">ls -1 /dev/sd?</p>
It returns a list of the storage devices on the system. For example:
<p class="pre command-output">/dev/sda</p>
Plug in the USB stick on which you want to install Tails.
<div class="caution"><p>All the data on this USB stick will be lost.</p></div>
Execute again the same command:
Your USB stick appears as a new device in the list.
<p class="pre command-output">/dev/sda
/dev/sdb</p>
Take note of the *device name* of your USB stick.
In this example, the device name of the USB stick is
<span class="code">/dev/sdb</span>. Yours might be different.
<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>