From 574e356a5a2ea42bcb743feec26b00385171c7be Mon Sep 17 00:00:00 2001
From: Aloys23 <aloys23@outlook.com>
Date: Sat, 30 May 2026 16:09:53 +0800
Subject: [PATCH] switch to GRUB with os-prober for multi-boot

---
 configuration.nix | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/configuration.nix b/configuration.nix
index a5d4944..f889586 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -17,9 +17,14 @@
   nixpkgs.config.allowUnfree = true;
 
   # ── 引导 ────────────────────────────────────────────────────
-  boot.loader.systemd-boot.enable = true;
-  boot.loader.systemd-boot.configurationLimit = 10; # 只保留最近 10 次迭代
   boot.loader.efi.canTouchEfiVariables = true;
+  boot.loader.grub = {
+    enable = true;
+    efiSupport = true;
+    device = "nodev";
+    configurationLimit = 10;
+    useOSProber = true;  # 检测其他系统（Windows 等）
+  };
 
   # ── 网络 ────────────────────────────────────────────────────
   networking.hostName = "nixos";
@@ -139,13 +144,6 @@
     ffmpeg
   ];
 
-  # ── 自动清理旧的系统迭代 ────────────────────────────────────
-  nix.gc = {
-    automatic = true;
-    dates = "weekly";
-    options = "--delete-older-than 7d";
-  };
-
   # ── 系统状态版本（请勿修改） ────────────────────────────────
   system.stateVersion = "25.11";
 }