nixos/limine: avoid rewriting boot order on update

efibootmgr rejects -o when BootOrder contains IDs without corresponding BootXXXX variables (which can come from certain BIOS implementations).

Fix by recreating Limine entry at previous position using -c --index, or use -C if Limine was not in BootOrder.

(cherry picked from commit 4dd37d80c3)

nixos/modules/system/boot/loader/limine/limine-install.py

@@ -603,6 +603,14 @@ def install_bootloader() -> None:
                 # If there's already a Limine entry, replace it
                 if limine_boot_entry:
                     boot_order = re.findall(r'BootOrder: ((?:[0-9a-fA-F]{4},?)*)', efibootmgr_output)[0]
+                    normalized_boot_order = boot_order.upper().split(',')
+                    create_options = ['-C']
+                    if limine_boot_entry.upper() in normalized_boot_order:
+                        create_options = [
+                            '-c',
+                            '--index',
+                            str(normalized_boot_order.index(limine_boot_entry.upper())),
+                        ]
 
                     efibootmgr_output = subprocess.check_output([
                         efibootmgr,
@@ -612,13 +620,12 @@ def install_bootloader() -> None:
 
                     efibootmgr_output = subprocess.check_output([
                         efibootmgr,
-                        '-c',
+                        *create_options,
                         '-b', limine_boot_entry,
                         '-d', efi_disk,
                         '-p', efi_partition.removeprefix(efi_disk).removeprefix('p'),
                         '-l', f'\\efi\\limine\\{boot_file}',
                         '-L', 'Limine',
-                        '-o', boot_order,
                     ], stderr=subprocess.STDOUT, universal_newlines=True)
                 else:
                     efibootmgr_output = subprocess.check_output([