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I have Linux Mint on this machine, no MacOS. As the subject line says, the machine boots up automatically whenever I connect it to power. Is there a way to prevent this behavior?

In case this may matter: I have installed a new battery in this machine and can't remember anymore whether the problem started with this or not.

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    Can you boot into a macOS environment (external boot disk, or internal recovery tools), run the command nvram auto-boot in Terminal, and report the result?
    – pion
    Commented Sep 2 at 0:15
  • Try asking on the Linux Stack.
    – Solar Mike
    Commented Sep 2 at 16:26
  • @pion I only get "nvram: Error getting variable - 'auto-boot': (iokit/common) data was not found"
    – Axel Lieber
    Commented Sep 3 at 23:00

1 Answer 1

Reset to default
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I had to create a systemd service to disable auto-power-on. That fixed it. Since this turned out to be a Linux issue not an Apple firmware issue, I won't post the details here. Anyone else in the same situation can just ask ChatGPT or Claude how to create said systemd service.

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