CalyxOS

CalyxOS
DeveloperThe Calyx Institute
OS familyAndroid (Linux)
Working stateCurrent
Source modelOpen source
Latest release5.11.1[1] / September 2024; 1 month ago (2024-09)
Repositorygitlab.com/CalyxOS
Update methodOver-the-air (OTA), ROM flashing
Package managerAPK-based
Platformsarm, arm64
Kernel typeMonolithic (Linux)
Official websitecalyxos.org

CalyxOS is a Android-based operating system for select smartphones, foldables and tablets with mostly free and open-source software. It is produced by the Calyx Institute as part of its mission to "defend online privacy, security and accessibility."[2]

CalyxOS preserves the Android security model, using Android's Verified Boot system of cryptographic signing of the operating system, and running with a locked bootloader.[3][4] CalyxOS also features an installer that guides the user through the process of unlocking and then re-locking the bootloader.[5]

  1. ^ "September 2024 Security update, take two". calyxos.org. Archived from the original on September 11, 2024. Retrieved September 11, 2024.
  2. ^ "About The Calyx Institute - Calyx Institute". calyxinstitute.org. Retrieved November 2, 2021.
  3. ^ "Security FAQ". calyxos.org. Retrieved March 3, 2023.
  4. ^ "Android Security Bulletins". calyxos.org. Retrieved March 3, 2023.
  5. ^ "CalyxOS: Google-freies Android". Linux-Magazin (in German). Retrieved April 13, 2023. Bei der Installation wird auch der Geräteschlüssel von Google gegen einen von CalyxOS ausgetauscht. Das ermöglicht einen verifizierten Bootvorgang und stellt sicher, dass sich nur von CalyxOS signierte Updates installieren lassen. Um den Schutz zu aktivieren, fragt der Installer am Schluss, ob er den Bootloader wieder sperren soll, was es zu bestätigen gilt. Anschließend ist die CalyxOS-Installation startklar.