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Zynthian SystemD Startup (view source)
Revision as of 14:08, 17 October 2021
, 14:08, 17 October 2021→systemctl
=== systemctl ===
=== systemctl ===
This allows maintenance of the systemd environment allowing you to stop, start and extract a status from the running services that SystemD is managing.
This command line tool allows maintenance of the systemd environment allowing you to stop, start and extract a status from the running services that SystemD is managing.
Just typing systemctl on the command line. Gives us over a hundred running services..
Just typing systemctl on the command line. Gives us over a hundred running services..
[[File:Systemctl-status-zynthian.png|right|300px]]
[[File:Systemctl-status-zynthian.png|right|300px]]
Shows us the status of various zynthian services.
Shows us the status of various zynthian services.
<br clear=all>
Notice they all very kindly tell you where these unit files are located. . .
Notice they all very kindly tell you where these unit files are located. . .
* Loaded: loaded (/etc/systemd/system/zynthian.service; enabled; vendor preset: enabled)
* Loaded: loaded (/etc/systemd/system/zynthian.service; enabled; vendor preset: enabled)
* Loaded: loaded (/etc/systemd/system/zynthian-config-on-boot.service; enabled; vendor preset: enabled)
* Loaded: loaded (/etc/systemd/system/zynthian-config-on-boot.service; enabled; vendor preset: enabled)
Active: inactive (dead) since Wed 2021-10-13 10:52:30 BST; 2 days ago
The first two services zynthian & zynthian-webconf are both running whilst zynthian-config-on-boot has done it's thing about 2 days ago . . .
Active: inactive (dead) since Wed 2021-10-13 10:52:30 BST; 2 days ago.
and here are the files:
[[File:Visual Studio unit scripts.png|left|600px]]
<br clear=all>
Things to notice:
=== Config-On-Boot Service ===
* It occurs before the jack2 service. So zynthian is really just a big jack2 engine :-)
* It's a one time fire
* /zynthian/zynthian-sys/sbin/config-on-boot.sh then does the actual setup.
=== Zynthian Webconf ===
* /zynthian/zynthian-webconf/zynthian_webconf.sh runs it.
* It's completely independent of other zynthian services.
* It will always restarts after five seconds of being killed.
=== Zynthian===
* Zynthian won't run without jack
* /usr/bin/startx ./zynthian.sh runs it.
* There is a similar restart directive as with webconf.
So remember normal kill -9 and such tricks will simply result in zynthian, or zynthian-webconf just restarting.
If you do want to stop them for ritualistic disembowelment on a desk, then use systemctl with stop and start.
systemctl stop zynthian
and to restart
systemctl start zynthian