diff options
Diffstat (limited to 'nixos/modules/system/boot/shutdown.nix')
-rw-r--r-- | nixos/modules/system/boot/shutdown.nix | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/nixos/modules/system/boot/shutdown.nix b/nixos/modules/system/boot/shutdown.nix new file mode 100644 index 000000000000..ad71a2e816e3 --- /dev/null +++ b/nixos/modules/system/boot/shutdown.nix @@ -0,0 +1,27 @@ +{ config, pkgs, ... }: + +with pkgs.lib; + +{ + + # This unit saves the value of the system clock to the hardware + # clock on shutdown. + systemd.units."save-hwclock.service" = + { wantedBy = [ "shutdown.target" ]; + + text = + '' + [Unit] + Description=Save Hardware Clock + DefaultDependencies=no + Before=shutdown.target + + [Service] + Type=oneshot + ExecStart=${pkgs.utillinux}/sbin/hwclock --systohc ${if config.time.hardwareClockInLocalTime then "--localtime" else "--utc"} + ''; + }; + + boot.kernel.sysctl."kernel.poweroff_cmd" = "${config.systemd.package}/sbin/poweroff"; + +} |