Halt or reboot ...

Philippe Frossard

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Aug 5, 2016, 12:13:28 PM8/5/16

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Hi,
I have a BBB with OLed screen,
I would like to display a message when the system halt but not if reboot ...
Is there a way to know if the system halt or reboot ?
Thanks.

--
Philippe Frossard

TJF

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Aug 6, 2016, 12:52:59 PM8/6/16

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Hi Philippe!

Am Freitag, 5. August 2016 18:13:28 UTC+2 schrieb philippe.frossard:

Is there a way to know if the system halt or reboot ?

There're several ways, depending on the operating system working on your board. Usually current boards ship with Debian Linux. Check the output of command

uname -a

It shoud look like

Linux beaglebone 3.8.13-bone71 #1 SMP Tue Mar 17 18:07:44 UTC 2015 armv7l GNU/Linux

In that case boot and halt process is managed by systemd. Find details at Wikipedia page and the links at the bottom.

BR

Philippe Frossard

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Aug 8, 2016, 10:05:28 AM8/8/16

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whith : runlevel | cut -d ' ' -f2 ....
0 = halt
6 = reboot

Le 06/08/2016 à 18:52, TJF a écrit :
> Hi Philippe!
>
> Am Freitag, 5. August 2016 18:13:28 UTC+2 schrieb philippe.frossard:
>
> Is there a way to know if the system halt or reboot ?
>
>
> There're several ways, depending on the operating system working on
> your board. Usually current boards ship with Debian Linux. Check the
> output of command
>
> |
> uname -a
> |
>
> It shoud look like
>
> |

> Linuxbeaglebone 3.8.13-bone71 #1 SMP Tue Mar 17 18:07:44 UTC 2015
> armv7l GNU/Linux
> |
>
> In that case boot and halt process is managed by /systemd. /Find
> details at Wikipedia page <https://en.wikipedia.org/wiki/Systemd> and