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5.8

Loading A Kernel

Asked by davidpeterson in Miscellaneous Programming, Kernel And Operating System Specific Programming

Tags: boot, hello, loader

I have been trying to write a small operating system by myself. I have compiled a small C++ kernel for myself. However the only boot loader that I can write in ASM is one that says hello world. I would like my boot loader to load my kernel into the memory and then execute it. My kernel is 4KB long and I want to boot from a floppy disk. I can write a boot loader onto the first 512 bytes of my floppy disk. However now when I open my FDD there is an error saying the disk is unformatted. This only happens when I write the small boot loader on.

The two questions are:

1. How can I write the kernel and the boot loader onto the FD, and make sure that the boot loader still occupies the first 512 bytes (needed for it to boot)?
2. How can i get my boot loader to load the kernel from the FD into the memory and then execute it. What asm coding do I need?

(Please answer any on the questions that you can)

Regards,

David

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20091111-EE-VQP-89

Loading A Kernel

Asked by davidpeterson in Miscellaneous Programming, Kernel And Operating System Specific Programming

Tags: boot, hello, loader

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