ive got a surface tablet at work running nixos. it mostly is used to view security cameras.

the machine is fairly low spec and bogs itself down after a coupke days, so id like it to auto reboot at 9am. i work a late shift and often don’t leave til around 2am.

i guess we don’t use cron anymore? i really don’t understand how the systemd timers work… the wiki doesnt really give great details…

systemd.timers.“autoreboot” = {

wantedBy = [ “timers.target” ];

timerConfig = {

  OnCalendar="*-*-* 9:00:00";                                     Unit = "autoreboot.service";

};

};

systemd.services.“autoreboot” = {

script = ‘’

set -eu

${pkgs.coreutils}/run/current-system/sw/bin/reboot

‘’;

serviceConfig = {

Type = "oneshot";

User = "root";

};

};

the systemd target seems to be created, but it reports as dead when i check it…

any advice?

  • Oinks@lemmy.blahaj.zoneEnglish
    6·
    29 days ago

    For installed packages, you can use readlink:

    $ readlink $(type -P reboot)
/nix/store/axx9bvf0dmah41f39ds9xdkds1lsz6z9-systemd-261/bin/reboot

    The NixOS search can also search for binaries. It seems that busybox also provides a reboot which I guess might be useful for weird systemd-less deployments?

    If you want to search for any file across all packages, there’s also nix-index, which scrapes Hydra for output files and builds a database which you can then query with nix-locate.