# lyos

**Repository Path**: aurthurlk/lyos

## Basic Information

- **Project Name**: lyos
- **Description**: 微内核类Unix操作系统内核
- **Primary Language**: Unknown
- **License**: GPL-3.0
- **Default Branch**: develop
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 12
- **Created**: 2015-03-29
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

This is lyos <https://github.com/Jimx-/lyos>

![cmdprompt][1]

WHAT IS LYOS
============
    
Lyos is an open source microkernel multitasking operating system, it runs
on 32-bit x86-based PCs.

It is distributed under the GNU General Public License.

FEATURES
========
Lyos has many standard features:

* Microkernel
    - Kernel only handles message passing, interrupts and task scheduling, other things like reading/writing files, memory managing and device operations are handled by servers.
    - Servers are single executables(not modules) that are loaded by kernel at boot time, running in user privilege level and their own address space.
* Multitasking
    - BFS scheduler 
* Symmetric multiprocessing
* ELF loading
* Interprocess Communication
    - Servers and user programs communicate using fixed length message(40 bytes)
    - Interrupts are converted into messages and sent to userspace servers
    - Unix signals
* Virtual file system
    - Ext2 filesystem support(under development)
    - procfs, sysfs...
* Memory management
    - Virtual memory based
    - Higher half kernel
* Userspace
    - Newlib
    - Dash, GNU Binutils, gcc...

COMPILATION AND INSTALLATION
============================

1. Get the source ```git clone git://github.com/Jimx-/lyos.git```

2. Setup toolchain, run ``./scripts/setup-toolchain.sh``
3. Compile Lyos, run
    
    ```make mrproper
    make menuconfig
    make```

4. Create disk image, run```make setup-disk```

5. Run Lyos with QEMU, run ```make kvm``` 

  [1]: http://jimx.1x.net/images/screenshot-6.png