Tips and tricks

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SSH Config

When postmarketOS is reinstalled, a new ssh host key will be generated. Your SSH client will detect this, and refuse to connect, requiring you to run ssh-keygen -R each time a new host key is generated.

To disable this check, and to allow you to connect by running ssh postmarketos, add the following to your ~/.ssh/config:

Host postmarketos
    StrictHostKeyChecking no
Warning: Ignoring host keys could leave you vulnerable to a Man-in-the-middle attack


  • The splash screen is highly configurable (scroll down for an example)!
  • Browse the Linux source with links to all references here
  • Qualcomm and maybe some other Androids can simply reboot from postmarketOS (or any Linux distro) into your bootloader or recovery with reboot -f bootloader and reboot -f recovery
  • Battery capacity can be monitored to trigger low battery actions. See Battery capacity monitoring for more information.