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>

toolchain/scripts/023-chroot-setup.sh

@@ -0,0 +1,91 @@
+#!/bin/bash
+# ============================================================================
+# DarkForge Linux — Phase 0, Chapter 7: Chroot Environment Setup
+# ============================================================================
+# Purpose:  Prepare the virtual filesystems and enter the chroot environment.
+#           This script must be run as ROOT on the host system. It mounts
+#           /dev, /proc, /sys, /run into the LFS tree and enters the chroot.
+# Inputs:   LFS environment variable
+# Outputs:  Running chroot environment with virtual filesystems mounted
+# Assumes:  All Chapter 5+6 scripts (001-022) complete successfully
+# Ref:      LFS 13.0 §7.2-7.4
+# ============================================================================
+
+set -euo pipefail
+
+LFS="${LFS:-/mnt/darkforge}"
+
+echo "=== DarkForge: Setting up chroot environment ==="
+
+# Verify we're running as root
+if [ "$(id -u)" -ne 0 ]; then
+    echo "ERROR: This script must be run as root."
+    exit 1
+fi
+
+# Change ownership from lfs user to root
+# (the chroot tools now belong to the system)
+chown -R root:root "${LFS}"/{usr,lib,var,etc,bin,sbin,tools} 2>/dev/null || true
+case $(uname -m) in
+    x86_64) chown -R root:root "${LFS}/lib64" ;;
+esac
+
+# --- Create essential directory structure ------------------------------------
+mkdir -pv "${LFS}"/{dev,proc,sys,run}
+mkdir -pv "${LFS}"/{boot,home,mnt,opt,srv}
+mkdir -pv "${LFS}/etc"/{opt,sysconfig}
+mkdir -pv "${LFS}/lib/firmware"
+mkdir -pv "${LFS}/media"/{floppy,cdrom}
+mkdir -pv "${LFS}/usr"/{,local/}{include,src}
+mkdir -pv "${LFS}/usr/local"/{bin,lib,sbin}
+mkdir -pv "${LFS}/usr"/{,local/}share/{color,dict,doc,info,locale,man}
+mkdir -pv "${LFS}/usr"/{,local/}share/{misc,terminfo,zoneinfo}
+mkdir -pv "${LFS}/usr"/{,local/}share/man/man{1..8}
+mkdir -pv "${LFS}/var"/{cache,local,log,mail,opt,spool}
+mkdir -pv "${LFS}/var/lib"/{color,misc,locate}
+
+ln -sfv /run "${LFS}/var/run"
+ln -sfv /run/lock "${LFS}/var/lock"
+
+install -dv -m 0750 "${LFS}/root"
+install -dv -m 1777 "${LFS}/tmp" "${LFS}/var/tmp"
+
+# --- Mount virtual kernel filesystems ----------------------------------------
+# These expose the host kernel's interfaces inside the chroot
+
+# Bind-mount /dev from host (gives us device nodes)
+mount -v --bind /dev "${LFS}/dev"
+
+# Mount devpts for pseudo-terminals
+mount -vt devpts devpts -o gid=5,mode=0620 "${LFS}/dev/pts"
+
+# Mount /proc (process info filesystem)
+mount -vt proc proc "${LFS}/proc"
+
+# Mount /sys (sysfs — kernel objects)
+mount -vt sysfs sysfs "${LFS}/sys"
+
+# Mount /run (tmpfs for runtime data)
+mount -vt tmpfs tmpfs "${LFS}/run"
+
+# Handle /dev/shm — some systems make it a symlink
+if [ -h "${LFS}/dev/shm" ]; then
+    install -v -d -m 1777 "${LFS}/$(readlink "${LFS}/dev/shm")"
+else
+    mount -vt tmpfs -o nosuid,nodev tmpfs "${LFS}/dev/shm"
+fi
+
+echo ""
+echo "=== Virtual filesystems mounted ==="
+echo ""
+echo "To enter the chroot, run:"
+echo ""
+echo "  chroot \"${LFS}\" /usr/bin/env -i   \\"
+echo "      HOME=/root                      \\"
+echo "      TERM=\"\${TERM}\"                  \\"
+echo "      PS1='(darkforge chroot) \\u:\\w\\\$ ' \\"
+echo "      PATH=/usr/bin:/usr/sbin         \\"
+echo "      MAKEFLAGS=\"-j32\"                \\"
+echo "      /bin/bash --login"
+echo ""
+echo "Then run the chroot build scripts (024-xxx) from inside the chroot."