[Tails-testers] Call for testing: Secure Boot, GRUB, and ove…

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Author: intrigeri
To: Tails list for early testers
Subject: [Tails-testers] Call for testing: Secure Boot, GRUB, and overlayfs

our first USB images that support Secure Boot are out!

Under the hood, they include two major technical changes:

- switch the boot loader from syslinux to GRUB for EFI boot

- switch from aufs to overlayfs

Please consider testing them :)

Here's how:

1. Download the USB image (.img) from

2. Install the downloaded USB image to a spare USB stick,
using Etcher (Windows, macOS) or GNOME Disks (Linux).

3. Start from this USB stick on various computers

In particular, we're interested in test results on:

    - computers configured to start in EFI mode

    - computers with Secure Boot enabled

    - Apple computers, especially recent MacBooks where current Tails
      releases don't start (#17049)

4. Do as much exploratory testing as you would like

5. Report back success or failure to this public mailing list: