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Hi we've just installed Ubuntu 12.04 LTS onto a new server. It's on a SuperMicro X9SCA-f Motherboard .

Now we're aiming to locate this in a remote server room - however when we execute a shutdown -r now the system completly shuts down and has to be restarted using the power button!! I cant find any BIOS setting that seems applicable.

Any help/pointers greatly appreciated.

green
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Julian
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    Have you tried "reboot" ? – Ed Villegas Jan 23 '13 at 14:29
  • Behaviour of shutdown is a setting in Ubuntu not in BIOS. – Rinzwind Jan 23 '13 at 15:05
  • As a workaround tour could just use 'sudo reboot'. – Seth Jan 23 '13 at 15:12
  • reboot does exactly the same :-( – Julian Jan 23 '13 at 16:08
  • While this is not a duplicate but the opposite from [why-cant-i-restart-shutdown](http://askubuntu.com/questions/7114/why-cant-i-restart-shutdown) the answers there might provide a clue for you too. – guntbert Jan 28 '13 at 20:48
  • I am really curious to know Why 'shutdown -r' doesn't reboot the server !! Can anyone tell us why ? – Suhaib Apr 02 '13 at 17:39
  • did you happen to try `sudo init 6`? That should also force the restart. – Thomas Ward Apr 02 '13 at 17:42
  • The only thing I could think of is that perhaps there's something reinterpreting your command and adding some extra switches? As in, an alias in a ~/.bash_profile or ~/.bashrc file? – Volomike May 03 '13 at 06:28
  • Something is going on here, it looks like halt is being called instead of reboot. Please use strace to log all the actors on behalf of shutdown. 
    strace -f /sbin/shutdown -r > /root/shutdown-trace.out 2>&1
    – ppetraki Jun 28 '13 at 17:58

1 Answers1

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Restart using init:

sudo init 6

The init 6 command gracefully reboots the system running all the K* shutdown scripts first, before rebooting. The reboot command does a very quick reboot. It doesn’t execute any kill scripts, but just unmounts filesystems and restarts the system.

Nathan Osman
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Osama El-gedawy
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    This is incorrect. `reboot` is only more abrupt than `init 6` or `shutdown -r now` if you use `reboot --force` (or equivalently `reboot -f`). Normal operation of `reboot` (when run simply with `sudo reboot`) is to invoke `shutdown`, which in turn invokes `init` to change the runlevel. See [`man 8 reboot`](http://manpages.ubuntu.com/manpages/precise/en/man8/reboot.8.html) and [`man 8 shutdown`](http://manpages.ubuntu.com/manpages/precise/en/man8/shutdown.8.html) for details. In other words, it is simply false to say that `K*` scripts are not run when rebooting with `sudo reboot`. They are. – Eliah Kagan Apr 02 '13 at 17:31