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28 lines
658 B
Nix
28 lines
658 B
Nix
{ config, lib, pkgs, ... }:
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with lib;
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{
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# This unit saves the value of the system clock to the hardware
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# clock on shutdown.
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systemd.services.save-hwclock =
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{ description = "Save Hardware Clock";
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wantedBy = [ "shutdown.target" ];
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unitConfig = {
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DefaultDependencies = false;
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ConditionPathExists = "/dev/rtc";
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};
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serviceConfig = {
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Type = "oneshot";
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ExecStart = "${pkgs.utillinux}/sbin/hwclock --systohc ${if config.time.hardwareClockInLocalTime then "--localtime" else "--utc"}";
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};
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};
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boot.kernel.sysctl."kernel.poweroff_cmd" = "${config.systemd.package}/sbin/poweroff";
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}
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