Files
darkforge/kernel/README.md
Danny 029642ae5b Initial commit: DarkForge Linux — Phases 0-12
Complete from-scratch Linux distribution targeting AMD Ryzen 9 9950X3D +
NVIDIA RTX 5090 on ASUS ROG CROSSHAIR X870E HERO.

Deliverables:
- dpack: custom package manager in Rust (3,800 lines)
  - TOML package parser, dependency resolver, build sandbox
  - CRUX Pkgfile and Gentoo ebuild converters
  - Shared library conflict detection
- 124 package definitions across 4 repos (core/extra/desktop/gaming)
- 34 toolchain bootstrap scripts (LFS 13.0 adapted for Zen 5)
- Linux 6.19.8 kernel config (hardware-specific, fully commented)
- SysVinit init system with rc.d service scripts
- Live ISO builder (UEFI-only, squashfs+xorriso)
- Interactive installer (GPT partitioning, EFISTUB boot)
- Integration test checklist (docs/TESTING.md)

No systemd. No bootloader. No display manager.
Kernel boots via EFISTUB → auto-login → dwl Wayland compositor.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-19 11:30:40 +01:00

2.0 KiB

DarkForge Kernel Configuration

Hardware-specific Linux 6.19.8 kernel configuration for the target machine.

Target Hardware

  • CPU: AMD Ryzen 9 9950X3D (Zen 5, 16C/32T)
  • GPU: NVIDIA RTX 5090 (Blackwell) — out-of-tree nvidia-open modules
  • NIC: Realtek RTL8125BN 2.5GbE (R8169 driver)
  • NVMe: Samsung 9100 PRO (PCIe 5.0)
  • Motherboard: ASUS ROG CROSSHAIR X870E HERO

Key Choices

Feature Config Why
CPU optimization CONFIG_MZEN4=y Closest kernel config symbol; real znver5 from CFLAGS
Scheduler EEVDF (default) Modern, built-in since 6.6
Preemption CONFIG_PREEMPT=y Full preemption for gaming latency
Timer CONFIG_HZ_1000=y Lowest latency tick rate
CPU governor CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL=y P-State EPP integration
NVMe CONFIG_BLK_DEV_NVME=y Built-in (root is on NVMe)
GPU nouveau disabled nvidia-open kernel modules used instead
Boot CONFIG_EFI_STUB=y Direct UEFI boot, no bootloader
Network CONFIG_R8169=y Realtek 2.5GbE
Hibernation CONFIG_HIBERNATION=y 96GB swap partition
Bluetooth CONFIG_BLUETOOTH=n Disabled
WiFi CONFIG_WIRELESS=n Ethernet only

Every non-default option in config has an inline comment explaining the rationale.

Usage

cp config /usr/src/linux-6.19.8/.config
cd /usr/src/linux-6.19.8
make olddefconfig    # fill new options with defaults
make -j32            # build with 32 threads
make modules_install
cp arch/x86/boot/bzImage /boot/vmlinuz

NVIDIA Driver

The RTX 5090 requires nvidia-open kernel modules (570.86.16+). These are built out-of-tree after the kernel:

cd /usr/src/nvidia-open-570.133.07
make -j32 modules KERNEL_UNAME=$(uname -r)
make modules_install

The modules are loaded at boot via /etc/rc.conf:

MODULES=(nvidia nvidia-modeset nvidia-drm nvidia-uvm)
MODULE_PARAMS=("nvidia-drm modeset=1")

Repository

git@git.dannyhaslund.dk:danny8632/darkforge.git