Tails 包括了一個自動機制自 USB 隨身磁來更新昇級。在某些情況下,它可能不會 自動昇級 因此你必須透過 手動昇級。本頁會介紹這兩種方法。

Your Persistent Storage will be preserved by both automatic and manual upgrades.

If you use Tails from a DVD, you need to burn a new DVD.

Automatic upgrade using Tails Upgrader

After starting Tails and connecting to Tor, Tails Upgrader automatically checks if upgrades are available and then proposes you to upgrade your USB stick. The upgrades are checked for and downloaded through Tor.


  • You only need a single Tails USB stick. The upgrade is done on the fly from a running Tails. After upgrading, you can restart and use the new version.
  • The upgrade is much smaller to download than a full USB image.
  • The upgrade mechanism includes cryptographic verification of the upgrade. You don't have to verify the USB image yourself anymore.


  • A Tails USB stick.
  • 網路連線。

After connecting to Tor, if an upgrade is available, a dialog appears and proposes you to upgrade your USB stick.

如果要進行昇級,請點擊 立即昇級, 然後依照昇級過程的指示操作

如果你無法自啟動時更新 (例如在離線的狀況下 ), 你可以在終端器下打開 Tails Upgrader ,然後執行以下指令:



If an error occurs during the upgrade, the assistant proposes you to read one of the following pages:

If your Tails USB stick fails to start after an automatic upgrade, see below how to do a manual upgrade.

Manual upgrade using Tails Installer


  • 我們的網站上並未提供此版本的自動昇級更新。
  • The automatic upgrade is impossible for technical reasons (not enough memory, not enough free space on the USB stick, etc.).
  • The automatic upgrade failed and you need to repair a Tails USB stick.
  • You want to upgrade by cloning from another Tails USB stick which is already up-to-date, for example, when working offline or with a slow Internet connection.

After connecting to Tor, a dialog informs you if you have to upgrade your USB stick using Tails Installer to a newer version of Tails.

To do a manual upgrade, you can either:

Download and upgrade

You need:

  • Your Tails USB stick
  • Another empty USB stick (at least 8 GB) Why?
  • 需一小時下載 Tails ( 1.2 GB )
  • ½ hour to upgrade


It is currently impossible to manually upgrade a Tails USB stick while running from itself. This scenario requires creating an intermediary Tails on another USB stick, from which to upgrade your Tails.

See our instructions on how to do a manual upgrade by:

Downloading and upgrading from Windows might be less secure if your Windows is compromised but it might be more convenient and faster to download.

Upgrade by cloning from another Tails

If you know someone you trust who already did the upgrade, you can upgrade your Tails by cloning from their Tails.

You need:

  • Your Tails USB stick - Another up-to-date Tails (USB stick or DVD) - ¼ hour to upgrade

See our instructions on how to do a manual upgrade by: