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

scripts/build-initramfs.sh

@@ -0,0 +1,74 @@
+#!/bin/sh
+set -e
+
+echo "====================================="
+echo "=   Alpine Zero-OS Initramfs Build  ="
+echo "====================================="
+echo ""
+
+# DIAGNOSTIC: Check critical dependencies before starting
+echo "[DEBUG] Checking critical dependencies..."
+echo "[DEBUG] Current directory: $(pwd)"
+echo "[DEBUG] Available disk space: $(df -h /build | tail -1)"
+echo "[DEBUG] Available memory: $(free -h)"
+echo "[DEBUG] Network connectivity: $(ping -c 1 8.8.8.8 >/dev/null 2>&1 && echo 'OK' || echo 'FAILED')"
+echo "[DEBUG] GitHub API access: $(curl -s https://api.github.com/repos/threefoldtech/zinit/releases/latest >/dev/null 2>&1 && echo 'OK' || echo 'FAILED')"
+echo "[DEBUG] Zinit config mount check: $(ls -la /mnt/zinit 2>/dev/null | wc -l) files"
+echo "[DEBUG] APK repositories: $(apk update >/dev/null 2>&1 && echo 'OK' || echo 'FAILED')"
+echo ""
+
+# Source configuration
+if [ -f /build/build.conf ]; then
+    . /build/build.conf
+else
+    echo "Error: build.conf not found"
+    exit 1
+fi
+
+echo "[+] Build mode: $BUILDMODE"
+echo "[+] Target arch: $TARGETARCH"
+echo "[+] Output directory: $OUTPUT_DIR"
+echo ""
+
+# Ensure output directory exists
+mkdir -p "$OUTPUT_DIR"
+
+# Phase 1: Install Alpine packages to initramfs
+echo "[+] Installing Alpine packages..."
+/build/scripts/install-packages.sh
+
+# Phase 2: Compile Zero-OS components from source (replaces problematic fetch-github)
+echo "[+] Compiling Zero-OS components..."
+if [ -f /build/scripts/build-smart.sh ]; then
+    # Use smart build if available (with caching)
+    /build/scripts/build-smart.sh
+    exit $?
+else
+    # Fallback to direct component compilation
+    /build/scripts/compile-components.sh
+fi
+
+# Phase 3: Setup initramfs structure
+echo "[+] Setting up initramfs structure..."
+/build/scripts/setup-initramfs.sh
+
+# Phase 4: Build kernel with embedded initramfs
+echo "[+] Building kernel..."
+/build/scripts/build-kernel.sh
+
+echo ""
+echo "[+] Build completed successfully!"
+echo "[+] Output files:"
+ls -la "$OUTPUT_DIR/"
+
+# Verify output
+if [ -f "$OUTPUT_DIR/vmlinuz.efi" ]; then
+    size=$(stat -c%s "$OUTPUT_DIR/vmlinuz.efi")
+    echo "[+] Kernel size: $size bytes"
+else
+    echo "[-] Error: vmlinuz.efi not found!"
+    exit 1
+fi
+
+echo ""
+echo "[+] Alpine Zero-OS initramfs build complete!"