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NonStandardModel
Asked: 2017-08-24 08:21:31 +0800 CST

What happens when shutdown/reboot is executed?

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Which scripts are executed when we click on shutdown or reboot?

Using Ubuntu 14.04.5.

scripts

1 Answers

  1. Best Answer

    Until 15.04 upstart was used for this, then being replaced by systemd.

    Used until Ubuntu 15.04: upstart

    When you press the shutdown button or execute shutdown +0 in a terminal, upstart executes every script in /etc/rc0.d in alphabetical order.

    When you press the reboot button or execute shutdown -r +0 in a terminal, upstart executes every script in /etc/rc6.d in alphabetical order.

    Edit: Note that the +0 in the above commands indicates the number of minutes to wait prior to taking the requested action and is equivalent to now. If you have other users on the system it would be prudent to increase this value to allow them time to save their work.

    Both directories hold only symlinks whose targets are located in /etc/init.d/ though.

    For more information see /etc/init.d/README and man init.

    Used from Ubuntu 15.04 on: systemd

    Here some links concerning systemd:

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