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. /etc/profile
case "$\$$1" in
start)
# Add here command that should execute during system startup.
;;
stop)
# Add here command that should execute during system shutdown.
;;
* )
echo "Usage: ... " >&2
exit 1
;;
esac
To create the startup links, put the above script into
root@gufboardll:~# update-rc.d myapp defaults 95 05
Adding system startup for /etc/init.d/myapp.
Here
95
is the startup level (late) and
determined by the dependencies given in the header of the init script.
Make sure the executable bit is set with:
root@gufboardll:~# chmod +x /etc/init.d/myapp
It is also possible to create the individual links with:
root@gufboardll:~# ln -s
A service is disabled using:
root@gufboardll:~# update-rc.d -f myapp remove
update-rc.d: /etc/init.d/myapp exists during rc.d purge (continuing)
Removing any system startup links for myapp ...
/etc/rc0.d/K20myapp
/etc/rc1.d/K20myapp
/etc/rc2.d/S20myapp
/etc/rc3.d/S20myapp
/etc/rc4.d/S20myapp
/etc/rc5.d/S20myapp
/etc/rc6.d/K20myapp
I
In chapter
[
7.5 Autostart mechanism for user applications]
start up.
4.1.1 Udev
The
service dynamically creates the device nodes in the
udev
reported by the Linux kernel.
Furthermore, udev is user-configurable to react on asynchronous events from device drivers reported by the Linux
kernel like hotplugging. The according rules are located in the root file system at /lib/udev/rules.d.
Additionally, udev is in charge of loading firware if a device driver requests it. Drivers that use the firmware
subsystem have to place their firmware in the folder /lib/firmware.
The udev service has a startup link that points to the corresponding start script:
/etc/rcS.d/S04udev -> /etc/init.d/udev
GUF-Yocto-34.0-r5756-0
/etc/init.d/myapp
05
is the stop level (early). If those numbers are omitted the level are
/etc/init.d/myapp /etc/rc5.d/S95myapp
this mechanism will be used for automatic application
VINCELL
¡
execute:
directory on system start up, as they are
/dev
User Manual
¡
13
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