[SOLVED] GRUB: No multiboot header found
Posted: Tue Dec 10, 2024 4:31 am
This is the multiboot2 header in the disassembled binary:
The fields summed should wrap around to 32bit 0, the specification says nothing else is needed from an ELF kernel.
This is the text section from linkconfig.ld (copied from wiki.osdev.org/Bare_Bones#Linking_the_Kernel):
In case there is some known (not to me) GRUB2 quirk I followed wiki.osdev.org/GRUB to make an iso bootable by qemu
edit: I had forgot to change the length from 0x18 to 0x10 after removing a tag
from the header, take 3, problem persists, I am the worst developer in the world.
Code: Select all
0000000000000000 <multiboot2_header>:
0: e8 52 50 d6 00 call d65057 <initial_stack+0xd5668f>
5: 00 00 add %al,(%rax)
7: 00 10 add %bl,(%rax)
9: 00 00 add %al,(%rax)
b: 00 17 add %dl,(%rdi)
d: ad lods %ds:(%rsi),%eax
e: af scas %es:(%rdi),%eax
f: 1A ...
This is the text section from linkconfig.ld (copied from wiki.osdev.org/Bare_Bones#Linking_the_Kernel):
Code: Select all
.text BLOCK(4K) : ALIGN(4K)
{
*(.multiboot)
*(.text)
}
edit: I had forgot to change the length from 0x18 to 0x10 after removing a tag
from the header, take 3, problem persists, I am the worst developer in the world.