Also I forgot to mention, that in the script I actually have to put the
line /sbin/shutdown -h now twice... Otherwise after I press the button the
message that the system is going down is displayed, but the system is not
turning off. Then I press it again and its going down.
W dniu czwartek, 2 października 2014 17:03:23 UTC+2 użytkownik bremenpl
napisał:
>
> Hello there,
> I am using Console version of debian provided on elinux.org on BeagleBone
> Black. My problem is that it misses the power button functionality. I have
> found this script for handling it:
>
> #!/bin/sh
>
> BTN=/dev/input/event0
>
> while true; do
> BTNVAL=`hexdump -e '8/2 "%x " "\n"' -n 16 $BTN | grep ' 74 ' | awk
> '{print $7$
> if [ "$BTNVAL" = "1" ]
> then
> echo "Power button pressed"
> /sbin/sync
> /sbin/sync
> /sbin/shutdown -h now
> exit
> fi
> sleep 1
> done
>
>
> I have put a link to it into init.d and used update-rc to make it work at
> startup.
> The problem is that it doesnt always work. Im not sure either it is
> running in the background or not, because when i use ps command i dont see
> the script running and even though the power button works. So lets say
> every 3rd power up the power button doesnt work... Im not sure whats the
> case. I would also aprichiate if someone told me either this is the proper
> way of handling the power button in the official bigger image.
>
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