dslm4515 / Raptix

An open-source operating system (OS) running a Linux kernel with a custom filesystem hierarchy.

Raptix

An open-source operating system (OS) running a Linux kernel with a custom filesystem hierarchy.

The focus of this project is to develop an operating system using an alterntive to the Filesystem Hierarchy Standard (FHS). This was inspired by "build notes" of qLinux. To speed up the build, mussel tool chain will be used to initiate the building process.

S T A T U S : Underdevelopment (no finished bootable build yet)

Tested architectures:

• x86-64: In progress, on Glibc host
• i686: pending
• aarm64: pending

OS Specifications

• Kernel: [Linux](kernel.org)
• Default Compiler: GCC
• C Runtime Library: [Musl](https://musl.libc.org/)
• Init/Boot System: Custom implementation of [S6+S6-rc](https://skarnet.org/software/s6)
• Device Manager: Eudev
• Default shell: [Dash](http://gondor.apana.org.au/~herbert/dash)

Custom Filesystem Hierarchy Goals

The filesystem hierarchy used by Raptix is defined in /FHS of this repo.

• Establish a functional filesystem hierarchy from the ground up.
• The /system directory will contain the 'base OS'. This will be a minimal system that can boot and launch a shell.
• The /apps directory will contain all the software _not required_ for boot.

(Current) Issues

• /etc still expected by bash to resolve users. "I have no name!" prompt.
• /dev still expected to be present instead of /system/dev. Lots of scripts (i.e. configure of autotools) expect /dev/null.
• Lots of software look for /apps/include instead of /apps/inc...I might just stick with /apps/include
• GCC still expects /usr/include instead of /apps/inc or /apps/include.
• "unknown terminal type." when clearing terminal. /system/data/terminfo is a "NetBSD Constant Database" instead of a directory of of files containing terminal definitions.
• Musl libc wont compile in chroot. Make complains that "/bin/sh" does not exist. Yet executing 'failing' commands execute fine... just not by `make`.

Build Method

1. Build mussel
2. Use mussel to build enough software to chroot.
3. Chroot and build the final system.

Requirements (to run mussel & build Raptix)

The following software should be installed. The first 25 can be checked via ./check.sh in the top-level of the mussel repo. Listed versions are the minimum version per LFS-11.2.x ... otherwise, use the latest versions available per your distro.

• Bash 3.2
• bc
• binutils 2.13.1
• bison 2.7
• bzip2
• ccache
• coreutils 6.9
• diffutils 2.8.1
• findutils 4.2.31
• gawk 4.0.1
• GCC(C & C++ support) 4.8
• git
• glibc/musl
• grep 2.5.1a
• gzip 1.3.12
• linux kernel 3.2
• lzip
• m4 1.4.10
• make 3.8
• patch 2.5.4
• perl 5.8.8
• rsync
• sed 4.1.5
• tar 1.22
• texinfo 4.7
• wget/cURL
• xz 5.0.0
• zstd