DualINIT

A meta-init system for Linux to 'dualboot' multiple Linux distributions in user-space sharing one Linux kernel

⚠️ Work in progress!

Installation

Building the executable

You are required to have:

If you are building DualINIT for an other architecture than your host, grab a cross-compiler and set the environment-variable CC to your compiler-path.

Now you can invoke the commands to clone this repository and compile bin/dualinit:

$ git clone https://github.com/friedelschoen/dualinit.git
$ cd dualinit
$ make bin/dualinit

Congratulations! 🎉 You have a fresh built of DualINIT, you can continue to set up a running dualinit-system.

If something went wrong, feel free to open an issue!

Getting Started

Some dictionaries and files in the filesystem-root are required for DualINIT and Linux to work:

/boot - the Linux kernel and bootloader
/dev - an empty dictionary filled by the kernel with various devices
/proc - an empty dictionary filled by the kernel with process information
/sys - an empty dictionary filled by the kernel with various kernel files
/sbin/init - the dualinit executable
/etc/dualinit.conf - dualinit configuration
/<section> - a section to be loaded
/<section>/{dev,sys,proc} - pseudo-filesystems binded from root
/<section>/{run,tmp} - temporary dictionaries for services and applications
/<section>/dualinit - the filesystem-root to configure DualINIT
/<section>/boot - can be mounted to /boot to update the kernel, bootloader, etc.

Resulting in a structure like that:

/
├── boot/
│  ├── initramfs-x.x.img
│  ├── vmlinuz-x.x
│  └── ...
├── dev/
├── etc/
│  └── dualinit.conf
├── proc/
├── sbin/
│  └── init
├── sys/
└── <section>/
   ├── dev/
   ├── sys/
   ├── proc/
   ├── run/
   ├── tmp/
   ├── dualinit/
   └── (boot/)

Configuration

Move the basic configuration-file to /etc/dualinit.conf and edit it to fit your needs.

A reference to all commands can be found here.

License

This whole project is licensed under the beautiful terms of the zlib-license.