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Booting with Multiboot specification compliant bootloader

What

Multiboot specification is an interface between a bootloader and an OS in which the bootloader collects certain information like memory size, architecture info, etc. and informs the OS about it. Because of a fixed interface, any multiboot compliant OS can be booted using any multiboot compliant bootloader.

How

• The bootloader puts the boot info into the agreed upon layout.
• The bootloader sets the magic multiboot header.
• The OS verifies the header and reads the data and puts it to use.

References

• The Multiboot Specification
• kernel/include/multiboot.h

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