devices.pc: add iso boot option

devices/pc/default.nix

@@ -154,6 +154,7 @@ inputs:
         "SetupBrowser.efi" = ./bios/SetupBrowser.efi;
         "UiApp.efi" = ./bios/UiApp.efi;
         "EFI/Boot/Bootx64.efi" = ./bios/Bootx64.efi;
+        "nixos.iso" = inputs.topInputs.self.src.iso;
       };
       extraEntries = 
       ''
@@ -162,6 +163,15 @@ inputs:
           insmod chain
           chainloader @bootRoot@/EFI/Boot/Bootx64.efi
         }
+        menuentry 'Live ISO' {
+          set iso_path=@bootRoot@/nixos.iso
+          export iso_path
+          search --set=root --file "$iso_path"
+          loopback loop "$iso_path"
+          root=(loop)
+          configfile /boot/grub/loopback.cfg
+          loopback --delete loop
+        }
       '';
     };
     # 禁止鼠标等在睡眠时唤醒

flake/src.nix

@@ -1,4 +1,10 @@
 { inputs }: let inherit (inputs.self.packages.x86_64-linux) pkgs; in
 {
   git-lfs-transfer = "sha256-V2cnWCyzxwxlOXXTB8Kz4X4VHvu0H/SqHBzPFwlp73o=";
+  iso = pkgs.fetchurl
+  {
+    url = "https://releases.nixos.org/nixos/24.11/nixos-24.11beta709057.0c582677378f"
+      + "/nixos-plasma6-24.11beta709057.0c582677378f-x86_64-linux.iso";
+    sha256 = "000wmfn6k5awqwsx9qldhdgahv4k09w4yzmvf0djs51qjdpha082";
+  };
 }