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Question about bootloader program?
I'm trying to write an operating system from scratch, including the bootloader.
I don't want to here how hard or tedious it may be. If it takes a long and complicated explanation, then give a long and complicated explanation.
I'm aware of the startup process and know assembly language, C and C++. The computer turns on, and then the UEFI gets loaded into the CPU. Then the computer runs the Power On Self Test, and then the computer starts searching for bootloader programs from boot sectors in storage devices. Storage devices can be a HDD, SSD, floppy, or even a flashdrive. I'm also aware that that the bootloader program has a specific signature, must be exactly 512 bytes in size and contain the location for the OS's kernel.
I'm confused as to how to actually store the bootloader program on the boot sector of the selected storage device. How do you control which sector in your storage device the file gets saved?
1 Answer
- ?Lv 74 years ago
Serious answer. If you're having to ask here, you do not possess the skill or knowledge to do any of this.
Find a new hobby.
