Faire démarrer l'ordinateur sur une clé USB

Cette étape est l'une des plus compliquées car elle dépend beaucoup du modèle de l'ordinateur :

  • Sur la plupart des ordinateurs, nos instructions de base pour obtenir le menu de démarrage fonctionnent bien.
  • Sur certains ordinateurs, vous pouvez avoir besoin de techniques plus avancées, comme de modifier les paramètres du BIOS.
  • Sur quelques ordinateurs, il pourrait être actuellement impossible de démarrer Tails. Mais c'est très difficile de le savoir sans essayer.

Le but est d'obtenir le menu du chargeur d’amorçage de Tails :

Écran
noir avec le logo Tails. Le menu du chargeur d'amorçage avec deux options
'Tails' et 'Tails (Troubleshooting Mode)'.

Obtenir le menu de démarrage

On most computers, you can press a boot menu key to display a list of possible devices to start from. The following instructions explain how to display the boot menu and start on the USB stick. The following screenshot is an example of a boot menu:

  1. Éteignez l'ordinateur tout en laissant la clé USB branchée.

    Éteindre l'ordinateur.

    Plug in the other Tails USB stick that you want to install upgrade from.

    Unplug your Tails USB stick while leaving the intermediary USB stick plugged in.

  2. Identify the possible boot menu keys for the computer depending on the computer manufacturer in the following list:

    FabricantTouche
    AcerÉchap, F12, F9
    AsusÉchap, F8
    ClevoF7
    DellF12
    FujitsuF12, Échap
    HPF9, Échap
    LenovoF12, Novo, F8, F10
    SamsungÉchap, F12, F2
    SonyF11, Échap, F10
    ToshibaF12
    others…F12, Échap

    On many computers, a message is displayed very briefly when switching on that also explains how to get to the boot menu or edit the BIOS settings.

  3. Switch on the computer and immediately press several times the first possible boot menu key identified in step 2.

  4. If the computer starts on another operating system or returns an error message, shut down the computer again and repeat step 3 for all the possible boot menu keys identified in step 2.

    If a boot menu with a list of devices appears, select your USB stick and press Enter.

    If the boot menu key that works on your computer is a different one than the first in the list, please let us know so we can improve the list. You can write to sajolida@pimienta.org (private email).

This animation explains how to use the boot menu key:

Check our list of known issues

Similar problems might have been reported already for your model of computer in our list of known issues.

Edit the BIOS settings

If none of the possible boot menu keys from the previous technique work, or if the USB stick does not appear in the boot menu, you might need to edit your BIOS settings.

Search for the user manual of the computer on the website of its manufacturer to learn how to edit the BIOS settings:

In the BIOS settings, try to apply the following changes one by one and restart the computer after each change. Some changes might not apply to certain computer models.

Take note of the changes that you apply to the BIOS settings. That way, you can revert the changes if they prevent the computer from starting on its usual operating system.

  1. Edit the Boot Order. Depending on the computer model you might see an entry for removable devices or USB media. Move this entry to the top of the list to force the computer to try to start from the USB stick before starting from the internal hard disk.

  2. Disable Fast boot.

  3. If the computer is configured to start with legacy BIOS, try to configure it to start with UEFI. Else, if the computer is configured to start with UEFI, try to configure it to start with legacy BIOS. To do so, try any of the following options if available:

  4. Try to upgrade the BIOS to the latest version provided by the manufacturer.

If none of these options work, we are sorry but you might not be able to use Tails on this computer. Feel free to report the problem to our help desk.

Reporting the problem to our help desk

Please send the following information to tails-support-private@boum.org:

  1. Which version of Tails are you trying to start?

  2. How did you verify the USB image?

  3. What is the brand and model of your computer?

  4. What exactly happens when trying to start? Report the complete error message that appears on the screen, if any.

  5. What program did you use to install your USB stick?

  6. Does the USB stick start successfully on other computers? If so, what are the brands and models of those computers?

  7. Have you been able to successfully start another version of Tails on this computer before? If so, which version?

We answer requests in:

  • English
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Requests not in English might take longer to answer. Imperfect English is welcome :)