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1 Article 1 source code
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2 ---------------------
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3 Author: John Tsiombikas <nuclear@member.fsf.org>
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4
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5 License: GNU GPL v3 or any later version published by the free software
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6 foundation. See COPYING for details.
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7
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8 About
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9 -----
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10 This is the supplemental source code for the first part of the introduction to
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11 kernel development articles. It deals with booting up from a multiboot-compliant
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12 boot loader and using the VGA for text output.
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13
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14 Compiling & Running
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15 -------------------
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16 To compile kernel image (kernel.elf) just type make (or gmake, if your default
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17 make tool is not GNU make). A script called "run" is supplied that will use qemu
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18 to run the kernel in a virtual machine.
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19
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20 If you wish to boot up the kernel on your computer you need a multiboot
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21 compliant boot loader like GRUB. Since you probably already have GRUB installed
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22 if you're running a GNU/Linux distribution, just add an entry to the GRUB config
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23 file (commonly /boot/grub/menu.lst) similar to this one and reboot:
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24
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25 title My kernel
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26 root (hdX,Y) # where X is the disk number and Y the partition (first being 0)
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27 kernel /path/to/kernel_code/kernel.elf # change this to the actual path
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28
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29 In case you are using GRUB 2 instead of the original GRUB, you'll have to
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30 consult the documentation on how to modify the above into the GRUB 2 syntax.
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31
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32 Disclaimer
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33 ----------
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34 All programs contain bugs, and this sample code will undoubtedly have its share.
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35 Running buggy kernel code on the real machine is very dangerous and may result
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36 in data loss or even damage to your computer in extreme cases. The author
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37 assumes no responsibility for any such eventuality. Run this code on your
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38 computer at your own risk.
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39
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40 Contact
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41 -------
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42 For any comments or suggestions regarding the articles or this supplemental
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43 code, please contact me at nuclear@member.fsf.org
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