Initial commit: Alpine Zero-OS initramfs build system with cleaned Docker configuration

2025-08-15 22:11:44 +02:00
commit 9b14d94bbe
34 changed files with 12864 additions and 0 deletions
--- a/scripts/setup-initramfs.sh
+++ b/scripts/setup-initramfs.sh
@@ -0,0 +1,172 @@
+#!/bin/sh
+set -e
+
+INITRAMFS_ROOT="/build/initramfs"
+CONFIG_DIR="/build/configs"
+OUTPUT_DIR="/build/output"
+
+echo "[+] Setting up initramfs structure..."
+
+# Copy init script
+echo "  Installing init script..."
+cp "$CONFIG_DIR/init" "$INITRAMFS_ROOT/init"
+chmod +x "$INITRAMFS_ROOT/init"
+
+# Copy zinit configuration (mounted from existing config)
+echo "  Installing zinit configuration..."
+echo "[DEBUG] Checking zinit config sources..."
+echo "[DEBUG] /mnt/zinit exists: $([ -d "/mnt/zinit" ] && echo 'YES' || echo 'NO')"
+echo "[DEBUG] /mnt/zinit contents: $(ls -la /mnt/zinit 2>/dev/null | wc -l) files"
+echo "[DEBUG] $CONFIG_DIR/zinit exists: $([ -d "$CONFIG_DIR/zinit" ] && echo 'YES' || echo 'NO')"
+echo "[DEBUG] $CONFIG_DIR/zinit contents: $(ls -la $CONFIG_DIR/zinit 2>/dev/null | wc -l) files"
+
+mkdir -p "$INITRAMFS_ROOT/etc/zinit"
+if [ -d "/mnt/zinit" ]; then
+    cp -r "/mnt/zinit/"* "$INITRAMFS_ROOT/etc/zinit/"
+    echo "    Copied zinit configs from /mnt/zinit"
+    echo "[DEBUG] Copied $(ls -la $INITRAMFS_ROOT/etc/zinit 2>/dev/null | wc -l) zinit config files"
+elif [ -d "$CONFIG_DIR/zinit" ]; then
+    cp -r "$CONFIG_DIR/zinit/"* "$INITRAMFS_ROOT/etc/zinit/"
+    echo "    Copied zinit configs from $CONFIG_DIR/zinit"
+    echo "[DEBUG] Copied $(ls -la $INITRAMFS_ROOT/etc/zinit 2>/dev/null | wc -l) zinit config files"
+else
+    echo "    Warning: zinit config directory not found"
+    echo "[DEBUG] ERROR: No zinit config source available - this will likely cause runtime failures"
+fi
+
+# Create debug script for compatibility
+echo "  Creating debug script..."
+cat > "$INITRAMFS_ROOT/init-debug" << 'EOF'
+#!/bin/sh
+# Debug file injection script (Alpine version)
+echo "[+] debug mode enabled"
+
+# Check for debug device (same as original)
+if [ -b /dev/sda1 ]; then
+    echo "  debug device found: /dev/sda1"
+    
+    # Create temporary mount point
+    mkdir -p /mnt/debug
+    
+    # Try to mount as vfat (same as original)
+    if mount -t vfat -o ro /dev/sda1 /mnt/debug 2>/dev/null; then
+        echo "  mounted debug device"
+        
+        # Check for debug marker file
+        if [ -f /mnt/debug/.zero-os-debug ]; then
+            echo "  debug marker found, copying files..."
+            
+            # Copy all files from debug device to tmpfs root
+            target="/mnt/root"
+            if [ -d "$target" ]; then
+                cp -rv /mnt/debug/* "$target/" 2>/dev/null || true
+                echo "  debug files copied to tmpfs"
+            else
+                echo "  warning: tmpfs root not ready yet"
+            fi
+        else
+            echo "  no debug marker (.zero-os-debug) found"
+        fi
+        
+        # Unmount debug device
+        umount /mnt/debug 2>/dev/null || true
+    else
+        echo "  failed to mount debug device"
+    fi
+    
+    # Cleanup
+    rmdir /mnt/debug 2>/dev/null || true
+else
+    echo "  no debug device found"
+fi
+
+echo "[+] debug initialization complete"
+EOF
+
+chmod +x "$INITRAMFS_ROOT/init-debug"
+
+# Copy other system configurations
+echo "  Setting up system configuration..."
+
+# Ensure proper hostname
+echo "zero-os" > "$INITRAMFS_ROOT/etc/hostname"
+
+# Basic hosts file
+cat > "$INITRAMFS_ROOT/etc/hosts" << EOF
+127.0.0.1	localhost zero-os
+::1		localhost zero-os
+EOF
+
+# Minimal passwd file (compatible with existing)
+if [ ! -f "$INITRAMFS_ROOT/etc/passwd" ]; then
+    cat > "$INITRAMFS_ROOT/etc/passwd" << EOF
+root:x:0:0:root:/root:/bin/sh
+EOF
+fi
+
+# Minimal group file
+if [ ! -f "$INITRAMFS_ROOT/etc/group" ]; then
+    cat > "$INITRAMFS_ROOT/etc/group" << EOF
+root:x:0:
+EOF
+fi
+
+# Set up profile for environment
+cat > "$INITRAMFS_ROOT/etc/profile" << EOF
+export PATH=/sbin:/bin:/usr/sbin:/usr/bin
+export HOME=/root
+export TERM=linux
+EOF
+
+# Ensure SSH directory exists
+mkdir -p "$INITRAMFS_ROOT/etc/ssh"
+mkdir -p "$INITRAMFS_ROOT/root/.ssh"
+
+# Set proper permissions
+chmod 700 "$INITRAMFS_ROOT/root"
+chmod 700 "$INITRAMFS_ROOT/root/.ssh" 2>/dev/null || true
+
+# Create necessary run directories
+mkdir -p "$INITRAMFS_ROOT/run"
+mkdir -p "$INITRAMFS_ROOT/var"
+
+# Ensure terminfo is available for better terminal support
+if [ -d "$INITRAMFS_ROOT/usr/share/terminfo" ]; then
+    echo "  terminfo available"
+else
+    echo "  warning: terminfo not found"
+fi
+
+# Set up symlinks (similar to current system)
+echo "  Setting up symlinks..."
+cd "$INITRAMFS_ROOT"
+
+# Ensure lib symlinks
+ln -sf usr/lib lib || true
+ln -sf usr/lib lib64 || true
+
+# Ensure var/run symlink (standard Linux practice: /var/run -> /run)
+cd "$INITRAMFS_ROOT/var"
+rm -rf run
+ln -sf ../run run || true
+cd "$INITRAMFS_ROOT"
+
+# Create initramfs archive
+echo "[+] Creating initramfs archive..."
+cd "$INITRAMFS_ROOT"
+
+# Create the cpio archive
+find . | cpio -H newc -o | xz --check=crc32 --x86 --lzma2=dict=1MiB > "$OUTPUT_DIR/initramfs.cpio.xz"
+
+if [ -f "$OUTPUT_DIR/initramfs.cpio.xz" ]; then
+    size=$(stat -c%s "$OUTPUT_DIR/initramfs.cpio.xz")
+    echo "[+] Initramfs created: $OUTPUT_DIR/initramfs.cpio.xz ($size bytes)"
+else
+    echo "[-] Error: Failed to create initramfs archive"
+    exit 1
+fi
+
+# Also create uncompressed version for debugging
+find . | cpio -H newc -o > "$OUTPUT_DIR/initramfs.cpio"
+
+echo "[+] Initramfs setup completed successfully"