2013/11/20 Lennart Poettering <[email protected]>: > On Tue, 19.11.13 14:18, Marcos Felipe Rasia de Mello ([email protected]) > wrote: > >> Hi folks, >> >> I am trying to disable HDDs power management in a systemd way (aka no >> shell scripts :) >> >> /etc/udev/rules.d/99-hdparm.rules >> >> SUBSYSTEM=="block", KERNEL=="sd*", ATTR{removable}=="0", >> TAG+="systemd", ENV{SYSTEMD_WANTS}+="hdparm@%k.service" > > Why do you do this asyncrhonously via a systemd service? Given that this > tool runs and terminates quickly invokign this with RUN inside of the > udev rule itself sounds like the best approach. >
If suspend/resume did not reset HDD power setting, sure, better run hdparm directly from the udev rule. My initial idea was rerun hdparm@ transient units after suspend with something like what you have suggested: mkdir /etc/systemd/system/sleep.target.wants ln -s /etc/systemd/system/[email protected] /etc/systemd/system/sleep.target.wants/ but it did not work so here I am. :) >> It works fine, but after the machine wakes up from suspend, I need >> that all [email protected] be run again. Is there a way to accomplish >> this? > > Well, you could drop in a service into sleep.target.wants/ which orders > itself after systemd-suspend.service... > _______________________________________________ systemd-devel mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/systemd-devel
