[arch-general] Configuring enabled services

Emil Lundberg lundberg.emil at gmail.com
Wed Mar 26 20:47:40 EDT 2014

That is correct, when you call `systemctl enable foo.unit` then the
[Install] section of the unit file is "executed". "Static" means that
the unit has no [Install] section, meaning it is permanently
enabled/disabled as far as the systemctl enable/disable tool is
concerned. Other than pulling themselves in when other units start, a
unit can also symlink another unit name to itself using the Alias=
option, and specify other units to enable/disable as a group using the
Also= option.

On 27 March 2014 07:13, Gesh <gesh at gesh.uni.cx> wrote:
> On March 19, 2014 9:16:57 PM GMT+02:00, Ary Kleinerman <akleinerman at buinet.com.ar> wrote:
>>> There's not really much magic going on. Are you aware of:
>>> /etc/systemd/system
>>> This contains symlinks that do already pretty much what you describe,
>>and this
>>> is systemd's native configuration.
>>Don't forget
>>/run/systemd/system: Runtime units and /usr/lib/systemd/system: Units
>>of installed packages
> Thanks for the pointers.
> If I understand what's going on correctly, units specify in their [Install] section whether, when they're enabled, they should be pulled in by other units.
> Those symlinks usually populate the appropriate directory under /etc/systemd/system/.
> Besides that, some packages install symlinks under /usr/lib/systemd/system/ as part of their files to get pulled in by other units without requiring user intervention.
> Finally, systemctl list-unit-files will list all unit files with their enabled/disabled/static status, where static means that they run by default (when pulled in) and disabled means they can be installed - that is, they have an [Install] section - but haven't been yet.
> And systemctl enable/disable manages the symlinks under /etc/systems/system specified by the [Install] section.
> Is my understanding of the situation correct?
> Thanks,
> Gesh

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