you need to active your service unit when your files show up by monitoring the path using an additional path unit: https://www.freedesktop.org/software/systemd/man/systemd.path.html
On Thu, Oct 5, 2017 at 12:59 AM sdrb <s...@onet.eu> wrote: > Hi, > > I'd like to ask how to achieve following functionality in systemd: > > I'd like to start alsa-restore.service only once just after one of the > specified files appears. Those file matches: /dev/snd/control*. > > For now I have something like this: > > [Unit] > Description=Save/Restore Sound Card State > ConditionPathExistsGlob=/dev/snd/control* > After=sysinit.target > > [Service] > Type=oneshot > RemainAfterExit=true > ExecStart=-/sbin/alsactl restore -f /etc/asound.state > > [Install] > WantedBy=multi-user.target > > > but during the start when there is no any of /dev/snd/control* files - > the condition is not meet and the service is not going up. > Those files appears later. > > So that what I'd like to achieve is to wait for appearing of those files > and then starting alsa-restore service. > > Is it possible to do in systemd? If yes - how to do this? > > _______________________________________________ > systemd-devel mailing list > systemd-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/systemd-devel > -- *Camilo Aguilar* Software Engineer http://github.com/c4milo
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