https://github.com/arjun024/mkernel

A minimalist kernel
https://github.com/arjun024/mkernel

Last synced: 3 days ago
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A minimalist kernel

• Host: GitHub
• URL: https://github.com/arjun024/mkernel
• Owner: arjun024
• License: gpl-2.0
• Created: 2014-04-14T18:55:33.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2021-04-27T20:01:12.000Z (over 3 years ago)
• Last Synced: 2024-10-29T19:18:55.125Z (14 days ago)
• Language: C
• Homepage: https://arjunsreedharan.org/post/82710718100/kernels-101-lets-write-a-kernel
• Size: 20.5 KB
• Stars: 1,336
• Watchers: 60
• Forks: 162
• Open Issues: 5
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome - mkernel - A minimalist kernel (C)

README

        
mkernel

=======

This is a minimalist kernel which prints "`my first kernel`" on the screen and then hangs.

* The kernel is multi-boot compliant and loads with GRUB.

#### Blog post ####

[Kernel 101 – Let’s write a Kernel](http://arjunsreedharan.org/post/82710718100/kernel-101-lets-write-a-kernel)

#### Build commands ####

```

nasm -f elf32 kernel.asm -o kasm.o

```

```

gcc -m32 -c kernel.c -o kc.o

```

```

ld -m elf_i386 -T link.ld -o kernel kasm.o kc.o

```

#### Test on emulator ####

```

qemu-system-i386 -kernel kernel

```

#### Get to boot ####

GRUB requires your kernel executable to be of the pattern `kernel-`.

So, rename the kernel:

```

mv kernel kernel-701

```

Copy it to your boot partition (assuming you are superuser):

```

cp kernel-701 /boot/kernel-701

```

Configure your grub/grub2 similar to what is given in `_grub_grub2_config` folder.

Reboot.

Voila!

![kernel screenshot](http://static.tumblr.com/gltvynn/yOdn443dr/mkernel.png "Screenshot")

#### The next step ####

See [mkeykernel repo](//github.com/arjun024/mkeykernel)