Ciro Santilli
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Failed attempt at modifying a segment descriptor, split GDB to separate file
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README.md
Multiboot
Introduction
https://en.wikipedia.org/wiki/Multiboot_Specification
Standard created by GRUB for booting OSes.
Multiboot files are an extension of ELF files with a special header.
Advantages: GRUB does housekeeping magic for you:
- you can store the OS as a regular file inside a filesystem
- your program starts in 32-bit mode already, not 16 bit real mode
- it gets the available memory ranges for you
Disadvantages:
- more boilerplate
GRUB leaves the application into a well defined starting state.
It seems that Linux does not implement Multiboot natively, but GRUB supports it as an exception: http://stackoverflow.com/questions/17909429/booting-a-non-multiboot-kernel-with-grub2
Use grub-mkrescue to make a multiboot file into a bootable ISO or disk.