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I've found a lot of inconsistent documentation on single user mode. I don't need to use it often, but I get curious, and I remember not being to use shut down commands in single user mode and pressing the reset button. Is there a better way to leave single user mode after resetting passwords?

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    Single mode is not a well-defined concept, you should tell people which init and sevice management system you're using. Usually for systemd systems, systemctl poweroff still works fine. Commented Mar 27, 2019 at 4:06
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    If all else fails, you can try the old init 0. Commented Mar 27, 2019 at 7:33
  • Ok that explains my confusion. I've booted into it on a few differant machines with differant distros and even an old mac. I didn't intend this to be specific question. I think I had an error when I tried systemctl poweroff, but maybe that was on the macpro.. Commented Mar 28, 2019 at 13:38

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Reset to default
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What do you have running in single user mode? Are databases running etc. etc. If you are worried then I would run

sync

then 

shutdown -i 0 (though depends on what flavor you are using)
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For newer Linux systems, this command should work:

systemctl poweroff --force --force
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  • It “should work”?  The power switch will (probably) work and is probably quicker, and another answer has already been presented.  Is your answer better? … … … … … … … … … … … Please do not respond in comments; edit your answer to make it clearer and more complete. Commented Jul 15, 2022 at 15:53

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