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darkforge/toolchain/scripts/024-chroot-essentials.sh
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

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#!/bin/bash
# ============================================================================
# DarkForge Linux — Phase 0, Chapter 7: Create Essential Files and Symlinks
# ============================================================================
# Purpose: Create the essential system files (/etc/passwd, /etc/group,
# log files) and symlinks that programs expect to exist.
# This script runs INSIDE the chroot environment.
# Inputs: None (creates files from scratch)
# Outputs: /etc/passwd, /etc/group, log files, essential symlinks
# Assumes: Running inside chroot (script 023 completed)
# Ref: LFS 13.0 §7.6
# ============================================================================
set -euo pipefail
echo "=== DarkForge: Creating essential files and symlinks ==="
# --- Create essential symlinks ------------------------------------------------
# Some programs hardcode paths to /bin/sh, /bin/cat, etc.
# With the unified /usr layout, these are already correct via symlinks
# created in 000-env-setup.sh, but verify:
[ -L /bin ] || { echo "ERROR: /bin should be a symlink to usr/bin"; exit 1; }
[ -L /lib ] || { echo "ERROR: /lib should be a symlink to usr/lib"; exit 1; }
[ -L /sbin ] || { echo "ERROR: /sbin should be a symlink to usr/sbin"; exit 1; }
# --- Create /etc/passwd -------------------------------------------------------
cat > /etc/passwd << "EOF"
root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/dev/null:/usr/bin/false
daemon:x:6:6:Daemon User:/dev/null:/usr/bin/false
messagebus:x:18:18:D-Bus Message Daemon User:/run/dbus:/usr/bin/false
uuidd:x:80:80:UUID Generation Daemon User:/dev/null:/usr/bin/false
nobody:x:65534:65534:Unprivileged User:/dev/null:/usr/bin/false
EOF
# --- Create /etc/group --------------------------------------------------------
cat > /etc/group << "EOF"
root:x:0:
bin:x:1:daemon
sys:x:2:
kmem:x:3:
tape:x:4:
tty:x:5:
daemon:x:6:
floppy:x:7:
disk:x:8:
lp:x:9:
dialout:x:10:
audio:x:11:
video:x:12:
utmp:x:13:
cdrom:x:15:
adm:x:16:
messagebus:x:18:
input:x:24:
mail:x:34:
kvm:x:61:
uuidd:x:80:
wheel:x:97:
users:x:999:
nogroup:x:65534:
EOF
# --- Create log files ---------------------------------------------------------
# These must exist for certain programs to function correctly
install -o root -g utmp -m 664 /dev/null /var/log/lastlog
install -o root -g root -m 600 /dev/null /var/log/btmp
install -o root -g root -m 664 /dev/null /var/log/faillog
install -o root -g utmp -m 664 /dev/null /var/log/wtmp
echo "=== Essential files and symlinks created ==="
echo ""
echo "Next: Run the chroot build scripts (025-xxx) to build additional tools."