nixpkgs/pkgs/os-specific/linux/systemd/0015-systemd-shutdown-execute-scripts-in-etc-systemd-syst.patch

From 98580b4aa34f3d2e7401f54d6561c5af27ea3437 Mon Sep 17 00:00:00 2001
From: Nikolay Amiantov <ab@fmap.me>
Date: Thu, 25 Jul 2019 20:45:55 +0300
Subject: [PATCH 15/18] systemd-shutdown: execute scripts in
 /etc/systemd/system-shutdown

This is needed for NixOS to use such scripts as systemd directory is immutable.
---
 src/shutdown/shutdown.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/shutdown/shutdown.c b/src/shutdown/shutdown.c
index 523040b57c..561d91c94c 100644
--- a/src/shutdown/shutdown.c
+++ b/src/shutdown/shutdown.c
@@ -299,7 +299,7 @@ int main(int argc, char *argv[]) {
         _cleanup_free_ char *cgroup = NULL;
         char *arguments[3], *watchdog_device;
         int cmd, r, umount_log_level = LOG_INFO;
-        static const char* const dirs[] = {SYSTEM_SHUTDOWN_PATH, NULL};
+        static const char* const dirs[] = {SYSTEM_SHUTDOWN_PATH, "/etc/systemd/system-shutdown", NULL};
 
         /* The log target defaults to console, but the original systemd process will pass its log target in through a
          * command line argument, which will override this default. Also, ensure we'll never log to the journal or
-- 
2.26.2