From d83de7e37cab7e230a56da7114fd55179c06f623 Mon Sep 17 00:00:00 2001
From: erik <erik.simon.me@gmail.com>
Date: Sun, 12 Jul 2026 23:54:01 +0200
Subject: [PATCH] =?UTF-8?q?fix(boot):=20reboot=3Dpci=20=E2=80=94=20warm=20?=
 =?UTF-8?q?reset=20hangs=20at=20firmware=20on=20this=20board?=
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---
 jupiter/configuration.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/jupiter/configuration.nix b/jupiter/configuration.nix
index fea0d17..cc54544 100644
--- a/jupiter/configuration.nix
+++ b/jupiter/configuration.nix
@@ -23,6 +23,11 @@
   # laptop-built (unsigned) closure without a signature error.
   nix.settings.trusted-users = [ "root" "@wheel" ];
 
+  # Warm reboot hangs at firmware reset on this board (cold power-cycle works).
+  # Force the PCI-chipset reset method. If a warm `reboot` still hangs, try the
+  # next value: acpi -> bios -> cold -> efi.
+  boot.kernelParams = [ "reboot=pci" ];
+
   # ---- NAS data array ----
   # Existing ext4 on the mdadm RAID0 over sda+sdb (md0, 29.1T).
   # Mounted, NOT formatted; kept out of disko so it is never wiped.