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I have a script on the PI to shutdown my NAS "shutdown_nas.sh". I have created that script in /etc/init.d according to the instructions in /etc/init.d/README

It is symlinked in /etc/rc0.d/K01NAS_shutdown.sh

It works fine when I call: 

sudo service shutdown_nas.sh stop

It also works fine when I halt the PI when I'm on ethernet (eth0).

It doesn't work on WIFI only, it seems like wlan is down before the needed request is done.

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  • I think you need a higher runlevel. Try /etc/rc2.d/K01NAS_shutdown.sh, or /etc/rc3.d/K01NAS_shutdown.sh
    – Gerben
    Commented May 21, 2014 at 11:10
  • I fail to see that. It should run on shutdown, rc0.d. en.wikipedia.org/wiki/Runlevels
    – Janghou
    Commented May 21, 2014 at 12:30
  • I don't really understand runlevels that well. Reading a bit more, I think you're right. Is K01... the first file in the rc2.d directory? Is there a K00.. that messes thins up?
    – Gerben
    Commented May 21, 2014 at 14:21
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    No, and the script does work (mutatis mutandis) on a Ubuntu 14.04 laptop, so it must be a RPI thing. Maybe because the dongle is on a USB-hub
    – Janghou
    Commented May 22, 2014 at 18:56

1 Answer 1

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Change the sequence number of your service so it is called before the wifi service.

man update-rc.d
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