Kernel: Fix GRUB config by specifying the correct file name

Author: https://github.com/gunnarbeutner
Commit: https://github.com/SerenityOS/serenity/commit/61a8f3e81a8
Pull-request: https://github.com/SerenityOS/serenity/pull/8862

Meta/grub-ebr.cfg

@@ -2,25 +2,25 @@ timeout=1
 
 menuentry 'SerenityOS (normal)' {
   root=hd0,5
-  multiboot /boot/Bootloader root=/dev/hda4
+  multiboot /boot/Prekernel root=/dev/hda4
   module /boot/Kernel
 }
 
 menuentry 'SerenityOS (text mode)' {
   root=hd0,5
-  multiboot /boot/Bootloader boot_mode=no-fbdev root=/dev/hda4
+  multiboot /boot/Prekernel boot_mode=no-fbdev root=/dev/hda4
   module /boot/Kernel
 }
 
 menuentry 'SerenityOS (No ACPI)' {
   root=hd0,5
-  multiboot /boot/Bootloader root=/dev/hda4 acpi=off
+  multiboot /boot/Prekernel root=/dev/hda4 acpi=off
   module /boot/Kernel
 }
 
 menuentry 'SerenityOS (with serial debug)' {
   root=hd0,5
-  multiboot /boot/Bootloader serial_debug root=/dev/hda4
+  multiboot /boot/Prekernel serial_debug root=/dev/hda4
   module /boot/Kernel
 }
 

Meta/grub-gpt.cfg

@@ -2,24 +2,24 @@ timeout=1
 
 menuentry 'SerenityOS (normal)' {
   root=hd0,2
-  multiboot /boot/Bootloader root=/dev/hda2
+  multiboot /boot/Prekernel root=/dev/hda2
   module /boot/Kernel
 }
 
 menuentry 'SerenityOS (text mode)' {
   root=hd0,2
-  multiboot /boot/Bootloader boot_mode=no-fbdev root=/dev/hda2
+  multiboot /boot/Prekernel boot_mode=no-fbdev root=/dev/hda2
   module /boot/Kernel
 }
 
 menuentry 'SerenityOS (No ACPI)' {
   root=hd0,2
-  multiboot /boot/Bootloader root=/dev/hda2 acpi=off
+  multiboot /boot/Prekernel root=/dev/hda2 acpi=off
   module /boot/Kernel
 }
 
 menuentry 'SerenityOS (with serial debug)' {
   root=hd0,2
-  multiboot /boot/Bootloader serial_debug root=/dev/hda2
+  multiboot /boot/Prekernel serial_debug root=/dev/hda2
   module /boot/Kernel
 }

Meta/grub-mbr.cfg

@@ -2,24 +2,24 @@ timeout=1
 
 menuentry 'SerenityOS (normal)' {
   root=hd0,1
-  multiboot /boot/Bootloader root=/dev/hda1
+  multiboot /boot/Prekernel root=/dev/hda1
   module /boot/Kernel
 }
 
 menuentry 'SerenityOS (text mode)' {
   root=hd0,1
-  multiboot /boot/Bootloader boot_mode=no-fbdev root=/dev/hda1
+  multiboot /boot/Prekernel boot_mode=no-fbdev root=/dev/hda1
   module /boot/Kernel
 }
 
 menuentry 'SerenityOS (No ACPI)' {
   root=hd0,1
-  multiboot /boot/Bootloader root=/dev/hda1 acpi=off
+  multiboot /boot/Prekernel root=/dev/hda1 acpi=off
   module /boot/Kernel
 }
 
 menuentry 'SerenityOS (with serial debug)' {
   root=hd0,1
-  multiboot /boot/Bootloader serial_debug root=/dev/hda1
+  multiboot /boot/Prekernel serial_debug root=/dev/hda1
   module /boot/Kernel
 }