Re: Reloading configuration after mount unit

[Silvio Knizek <killermoehre@xxxxxxx>]

Am Freitag, dem 18.06.2021 um 15:04 +0200 schrieb Norbert Lange:
> Hello,
>
> I have an extra mount for /usr/local (Tools + Services which are just
> useful for development), classically done vie /etc/fstab.
>
> Now there are a few systemd services within /usr/local/lib and systemd
> does not seem to load/reload those and start the ones that add a
> sysinit.wants.
>
> currently I have to do the following to get a "full start":
> systemctl daemon-reload
> systemctl start default.target
>
> What would be the correct way to cause systemd to reevaluate configuration?
> I get that this generally could lead to bad behaviour (endless
> reconfiguration if cycles),
> but for something hierarchical like mount-paths it should be possible.
>
> I could think of a unit having an after/requires to usr-local.mount or
> using a path unit watching PathChanged=/usr/local/lib/systemd.
> At any rate, I am not sure how I could tell systemd to start new units
> wanted by eg.
> sysinit.target if this was already fully started. `systemctl start
> default.target` seems
> a bit dangerous.
>
> Another, less important issue is that I cant set lazy unmount in fstab.
>
> Norbert.
Hi Norbert,

make sure your /usr/local mount is done in the initrd and that you use
»systemctl link /path/to/unit.service« to enable them.

For the automount behaviour, you need to add
»noauto,x-systemd.autmount,x-systemd.idle-timeout=10s«
to the options part in the /etc/fstab. See man:systemd.mount for more
information.

HTH
Silvio

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