KayraCore is a simple side project of mine to create a linux distro from scratch. It uses busybox as the root filesystem and the linux kernel as the kernel.
Creates a syslinux bootable image file named boot.img in workdir/boot-files. boot.img is 128M in size and can be booted with qemu-system-x86_64. It includes KayraCore.kernel as linux kernel and KayraCore.cpio as the root filesystem. Also it has a syslinux config file to automatically boot the OS.
Be sure to change build.sh to your needs. It has OS_NAME and PROJECT_DIR variables that you should change to your needs. Also it uses qemu-system-x86_64 to boot the generated image. Change the qemu command to your needs.
It is configured to use 8 threads for building the kernel and busybox.
Repositories to be cloned:
- linux kernel at
workdir/linux - busybox at
workdir/busybox - bash at
workdir/bash
Dependencies: bzip2 git vim make gcc libncurses-dev flex bison bc cpio libelf-dev libssl-dev syslinux dosfstools
build.sh linux_config- Configure the linux kernel with menuconfig.build.sh busybox_config- Configure busybox with menuconfig.build.sh build_kernel- Build the linux kernel.build.sh build_initramfs- Build the initramfs.build.sh compile- Store the kernel and initramfs into boot.img.build.sh boot- Boot the generated image with qemu-system-x86_64.build.sh cleanup- Clean generated images and kernel also clean the kernel and busybox build directories.