Yocto startup scripts systemd: Difference between revisions
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To have a custom headless application start up at boot a systemd service needs to be created. Create the file /etc/systemd/system/yourapp.service with contents similar to below: | To have a custom headless application start up at boot a systemd service needs to be created. Create the file <source lang=bash inline>/etc/systemd/system/yourapp.service</source> with contents similar to below: | ||
<source lang=ini> | <source lang=ini> | ||
[Unit] | [Unit] | ||
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</source> | </source> | ||
If | If an application depends on networking, the systemd script will want to have <source lang=bash inline>After=network.target</source> in the Unit section. Once this file is in place, it can be added to automatic startup with the following: | ||
<source lang=bash> | <source lang=bash> | ||
# | # Enable the application to be started on boot up | ||
systemctl enable yourapp.service | systemctl enable yourapp.service | ||
# Start | # Start the application now, but will not affect automatic startup | ||
systemctl start yourapp.service | systemctl start yourapp.service | ||
</source> | </source> | ||
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{{Note|See the [http://www.freedesktop.org/software/systemd/man/systemd.service.html systemd documentation] for in depth documentation on services.}} | {{Note|See the [http://www.freedesktop.org/software/systemd/man/systemd.service.html systemd documentation] for in depth documentation on services.}} | ||
To set up a graphical application startup, | To set up a graphical application startup, modify the <source lang=bash inline>/usr/bin/mini-x-session</source> file | ||
/usr/bin/mini-x-session | |||
At the end of the script replace | At the end of the script replace <source lang=bash inline>matchbox-terminal</source> with the desired application (absolute path may need to be specified): | ||
<source lang=bash> | <source lang=bash> | ||
matchbox-terminal& | matchbox-terminal & | ||
exec matchbox-window-manager | exec matchbox-window-manager | ||
</source> | </source> | ||
The exec statement must be last in the script in order to take over this script's PID for correct operation. | The exec statement must be last in the script in order to take over this script's PID for correct operation. | ||
Latest revision as of 16:25, 23 March 2020
To have a custom headless application start up at boot a systemd service needs to be created. Create the file /etc/systemd/system/yourapp.service with contents similar to below:
[Unit]
Description=Run an application on the i.MX6
[Service]
Type=simple
ExecStart=/usr/local/bin/your_app_or_script
[Install]
WantedBy=multi-user.target
If an application depends on networking, the systemd script will want to have After=network.target in the Unit section. Once this file is in place, it can be added to automatic startup with the following:
# Enable the application to be started on boot up
systemctl enable yourapp.service
# Start the application now, but will not affect automatic startup
systemctl start yourapp.service
| Note: | See the systemd documentation for in depth documentation on services. |
To set up a graphical application startup, modify the /usr/bin/mini-x-session file
At the end of the script replace matchbox-terminal with the desired application (absolute path may need to be specified):
matchbox-terminal &
exec matchbox-window-manager
The exec statement must be last in the script in order to take over this script's PID for correct operation.