Grub throws "multiboot header not found"

[animefreak1233]

The error's gone, but it no longer boots....
Here's my multiboot header-

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MBOOT_PAGE_ALIGN    equ 1<<0    ; Load kernel and modules on a page boundary
MBOOT_MEM_INFO      equ 1<<1    ; Provide your kernel with memory info
MBOOT_HEADER_MAGIC  equ 0x1BADB002 ; Multiboot Magic value
; NOTE: We do not use MBOOT_AOUT_KLUDGE. It means that GRUB does not
; pass us a symbol table.
MBOOT_HEADER_FLAGS  equ MBOOT_PAGE_ALIGN | MBOOT_MEM_INFO
MBOOT_CHECKSUM      equ -(MBOOT_HEADER_MAGIC + MBOOT_HEADER_FLAGS)


[BITS 32]                       ; All instructions should be 32-bit.
SECTION .multiboot
[GLOBAL mboot]                  ; Make 'mboot' accessible from C.
[EXTERN code]                   ; Start of the '.text' section.
[EXTERN bss]                    ; Start of the .bss section.
[EXTERN end]
				; End of the last loadable section.
mboot:
  dd  MBOOT_HEADER_MAGIC        ; GRUB will search for this value on each
                                ; 4-byte boundary in your kernel file
  dd  MBOOT_HEADER_FLAGS        ; How GRUB should load your file / settings
  dd  MBOOT_CHECKSUM            ; To ensure that the above values are correct
   
  dd  mboot                     ; Location of this descriptor
  dd  code                      ; Start of kernel '.text' (code) section.
  dd  bss                       ; End of kernel '.data' section.
  dd  end                       ; End of kernel.
  dd  start                     ; Kernel entry point (initial EIP).

[GLOBAL start]                  ; Kernel entry point.
[EXTERN main]                   ; This is the entry point of our C code

start:
  push    ebx                   ; Load multiboot header location

  ; Execute the kernel:
  cli                         ; Disable interrupts.
  call main                   ; call our main() function.
  jmp $                       ; Enter an infinite loop, to stop the processor
                              ; executing whatever rubbish is in the memory
                              ; after our kernel!

[Hellbender]

Code: Select all

MBOOT_HEADER_FLAGS  equ MBOOT_PAGE_ALIGN | MBOOT_MEM_INFO

Code: Select all

mboot:
  dd  MBOOT_HEADER_MAGIC        ; GRUB will search for this value on each
                                ; 4-byte boundary in your kernel file
  dd  MBOOT_HEADER_FLAGS        ; How GRUB should load your file / settings
  dd  MBOOT_CHECKSUM            ; To ensure that the above values are correct
   
  dd  mboot                     ; Location of this descriptor
  dd  code                      ; Start of kernel '.text' (code) section.
  dd  bss                       ; End of kernel '.data' section.
  dd  end                       ; End of kernel.
  dd  start                     ; Kernel entry point (initial EIP).

So you are passing mboot, code, bss, end and start as if you are not using elf kernel, but you are not setting the bit 16 in flags:
"If bit 16 in the ‘flags’ word is set, then the fields at offsets 12-28 in the Multiboot header are valid, and the boot loader should use them instead of the fields in the actual executable header to calculate where to load the OS image."

So either you are missing the flag, or you are unnecessarily populating those fields. Which one?