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# L5Lunos - a clean, modern Solaris
Written mostly solo and completely from scratch, not Linux based nor does it
share any existing operating system sources.
## Current status
**Under heavy development**
## Progress
- 57-bit (5-level) paging
- 48-bit (4-level) paging
- Printf-style kernel logging
- Video console
- I/O APIC
- Local APIC timer(s)
- Processor local APIC(s)
- Syscall windows, domains and platform latches
- 16550 UART I/O
- i8254
- i8259
## Goals
- POSIX compliancy
- PCI
- PCIe
- PCI(e) MSI
- PCI(e) MSI-X
- File I/O syscalls
- AHCI/SATA support
- NVMe support
- Single-level store orthogonal to disk/ram
- UNIX-like FS layered on SLS
- Block I/O framework
- USB support (xHCI / USB 3.0)
- Capability based security
...
## Build instructions
To build the system, run the following to generate an ISO image:
```sh
tools/bootstrap.sh # Build and fetch prerequisites
tools/tools/build-toolchain.sh # Build the cross compilation toolchain
make
```
## License
This project is licensed under the BSD 3 clause
SPDX identifier: BSD-3-Clause
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