pyrox.dev
1{
2 config,
3 lib,
4 pkgs,
5 ...
6}:
7
8with lib;
9
10{
11
12 # This unit saves the value of the system clock to the hardware
13 # clock on shutdown.
14 systemd.services.save-hwclock = {
15 description = "Save Hardware Clock";
16
17 wantedBy = [ "shutdown.target" ];
18
19 unitConfig = {
20 DefaultDependencies = false;
21 ConditionPathExists = "/dev/rtc";
22 ConditionPathIsReadWrite = "/etc/";
23 };
24
25 serviceConfig = {
26 Type = "oneshot";
27 ExecStart = "${pkgs.util-linux}/sbin/hwclock --systohc ${
28 if config.time.hardwareClockInLocalTime then "--localtime" else "--utc"
29 }";
30 };
31 };
32
33 boot.kernel.sysctl."kernel.poweroff_cmd" = "${config.systemd.package}/sbin/poweroff";
34
35}