From b9ee38b4f8a8e132187b400bff1626b96dbbfb55 Mon Sep 17 00:00:00 2001
From: Jeffrey Alan Scudder <me@jas.life>
Date: Wed, 25 Mar 2026 18:26:37 -0700
Subject: [PATCH] =?UTF-8?q?fix:=20proper=20poweroff/reboot=20=E2=80=94=20e?=
 =?UTF-8?q?xit=20codes=200/2,=20no=20SIGTERM=20to=20init?=
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poweroff: _exit(0) → init uses sysrq 'o'
reboot: _exit(2) → init uses sysrq 'b'
No more getpid()==1 checks or SIGTERM/SIGUSR2 to PID 1.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 fedac/native/initramfs/init    | 15 +++++++++++----
 fedac/native/src/js-bindings.c | 22 +++++-----------------
 2 files changed, 16 insertions(+), 21 deletions(-)

diff --git a/fedac/native/initramfs/init b/fedac/native/initramfs/init
index 8471718660..ac31b691ce 100755
--- a/fedac/native/initramfs/init
+++ b/fedac/native/initramfs/init
@@ -113,17 +113,24 @@ while true; do
     /ac-native /piece.mjs
     EXIT_CODE=$?
 
-    # Clean exit (0) = shutdown requested
+    # Exit code 0 = power off, exit code 2 = reboot
     if [ "$EXIT_CODE" = "0" ]; then
         sync
         echo "[ac-init] Clean exit — powering off..."
-        # Sysrq power off (most reliable under initramfs)
         echo o > /proc/sysrq-trigger 2>/dev/null
         sleep 2
-        # Busybox poweroff
         poweroff -f 2>/dev/null
         busybox poweroff -f 2>/dev/null
-        # If nothing worked, halt (do NOT reboot)
+        sleep 30
+        break
+    fi
+    if [ "$EXIT_CODE" = "2" ]; then
+        sync
+        echo "[ac-init] Reboot requested..."
+        echo b > /proc/sysrq-trigger 2>/dev/null
+        sleep 2
+        reboot -f 2>/dev/null
+        busybox reboot -f 2>/dev/null
         sleep 30
         break
     fi
diff --git a/fedac/native/src/js-bindings.c b/fedac/native/src/js-bindings.c
index f54bfbb30d..1c6ef436a6 100644
--- a/fedac/native/src/js-bindings.c
+++ b/fedac/native/src/js-bindings.c
@@ -3317,13 +3317,8 @@ static JSValue js_reboot(JSContext *ctx, JSValueConst this_val, int argc, JSValu
     ac_log("[reboot] executing reboot syscall");
     ac_log_flush();
 
-    if (getpid() == 1) {
-        reboot(LINUX_REBOOT_CMD_RESTART);
-    } else {
-        // Under cage: tell PID 1 to reboot, then exit so cage closes
-        kill(1, SIGUSR2);  // SIGUSR2 = reboot request
-        _exit(0);
-    }
+    // Exit with code 2 — init script sees this as reboot request
+    _exit(2);
     return JS_UNDEFINED;
 }
 
@@ -3339,17 +3334,10 @@ static JSValue js_poweroff(JSContext *ctx, JSValueConst this_val, int argc, JSVa
     ac_log("[poweroff] pid=%d, syncing filesystems...\n", getpid());
     ac_log_flush();
     sync(); usleep(300000); sync();
-    ac_log("[poweroff] executing power off...\n");
+    ac_log("[poweroff] exiting with code 0 (init will power off)...\n");
     ac_log_flush();
-    if (getpid() == 1) {
-        int r = reboot(LINUX_REBOOT_CMD_POWER_OFF);
-        ac_log("[poweroff] reboot() returned %d errno=%d\n", r, errno);
-    } else {
-        // Under cage: tell PID 1 to power off, then exit so cage closes
-        ac_log("[poweroff] sending SIGTERM to PID 1\n");
-        kill(1, SIGTERM);
-        _exit(0);
-    }
+    // Exit cleanly — init script sees exit code 0 and runs poweroff
+    _exit(0);
     return JS_UNDEFINED;
 }
 
-- 
2.51.2