ISO builder: native Ubuntu version, no Docker needed

autoinstall/build-iso.sh

@@ -1,70 +1,44 @@
 #!/usr/bin/env bash
 # ─────────────────────────────────────────────────────────────
 # Cezen AI Suite — Custom ISO Builder
-# Runs on macOS using Docker. Produces a bootable USB image.
+# Runs directly on Ubuntu 22.04 (run on the server)
 #
-# Usage: bash autoinstall/build-iso.sh
+# Usage:
-# Output: autoinstall/cezen-ai-ubuntu2204.iso
+#   cd ~/aipackage
+#   bash autoinstall/build-iso.sh
 #
-# Requirements:
+# Output: ~/aipackage/autoinstall/cezen-ai-ubuntu2204.iso
-#   - Docker Desktop running on your MacBook
+# Then copy the ISO to a USB stick or burn it.
-#   - ~6 GB free disk space (ISO download + work)
 # ─────────────────────────────────────────────────────────────
 set -e
 
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+WORK_DIR="/tmp/cezen-iso-work"
+ORIGINAL_ISO="/tmp/ubuntu-22.04.5-live-server-amd64.iso"
 OUTPUT_ISO="$SCRIPT_DIR/cezen-ai-ubuntu2204.iso"
-UBUNTU_ISO_URL="https://releases.ubuntu.com/22.04.5/ubuntu-22.04.5-live-server-amd64.iso"
+UBUNTU_URL="https://releases.ubuntu.com/22.04.5/ubuntu-22.04.5-live-server-amd64.iso"
 
 echo "╔══════════════════════════════════════════╗"
 echo "║   Cezen AI — ISO Builder                 ║"
 echo "╚══════════════════════════════════════════╝"
 echo ""
 
-# Check Docker is running
+# ── Install build tools ────────────────────────
-if ! docker info &>/dev/null; then
+echo "→ Installing build tools..."
-  echo "ERROR: Docker is not running. Start Docker Desktop and try again."
-  exit 1
-fi
-echo "✓ Docker is running"
-
-# Check autoinstall files exist
-if [ ! -f "$SCRIPT_DIR/user-data" ] || [ ! -f "$SCRIPT_DIR/meta-data" ]; then
-  echo "ERROR: user-data or meta-data not found in $SCRIPT_DIR"
-  exit 1
-fi
-echo "✓ Autoinstall files found"
-
-echo ""
-echo "→ Building ISO inside Docker container (Ubuntu 22.04)..."
-echo "  This will take 5–15 minutes depending on internet speed."
-echo ""
-
-docker run --rm \
-  -v "$SCRIPT_DIR:/autoinstall" \
-  -v "$REPO_ROOT:/repo" \
-  ubuntu:22.04 \
-  bash -c '
-set -e
-
-# Install tools
-export DEBIAN_FRONTEND=noninteractive
 apt-get update -qq
-apt-get install -y -qq xorriso wget isolinux rsync
+apt-get install -y -qq xorriso wget isolinux
+echo "✓ Tools ready"
 
-WORK_DIR="/tmp/iso-work"
+# ── Download Ubuntu ISO ────────────────────────
-ORIGINAL_ISO="/tmp/ubuntu-22.04.5-live-server-amd64.iso"
+if [ -f "$ORIGINAL_ISO" ]; then
-UBUNTU_URL="https://releases.ubuntu.com/22.04.5/ubuntu-22.04.5-live-server-amd64.iso"
+  echo "✓ Ubuntu ISO already downloaded"
-
+else
-# Download Ubuntu ISO if not already cached
-if [ ! -f "$ORIGINAL_ISO" ]; then
   echo "→ Downloading Ubuntu 22.04.5 Server ISO (~1.8 GB)..."
-  wget -q --show-progress -O "$ORIGINAL_ISO" "$UBUNTU_URL"
+  wget --show-progress -O "$ORIGINAL_ISO" "$UBUNTU_URL"
+  echo "✓ Downloaded"
 fi
-echo "✓ Ubuntu ISO ready"
 
-# Extract ISO contents
+# ── Extract ISO ────────────────────────────────
 echo "→ Extracting ISO..."
 rm -rf "$WORK_DIR"
 mkdir -p "$WORK_DIR"
@@ -72,47 +46,46 @@ xorriso -osirrox on \
   -indev "$ORIGINAL_ISO" \
   -extract / "$WORK_DIR" 2>/dev/null
 chmod -R u+w "$WORK_DIR"
-echo "✓ ISO extracted"
+echo "✓ Extracted"
 
-# Inject autoinstall files
+# ── Inject autoinstall files ───────────────────
 echo "→ Injecting autoinstall config..."
 mkdir -p "$WORK_DIR/nocloud"
-cp /autoinstall/user-data "$WORK_DIR/nocloud/user-data"
+cp "$SCRIPT_DIR/user-data" "$WORK_DIR/nocloud/user-data"
-cp /autoinstall/meta-data "$WORK_DIR/nocloud/meta-data"
+cp "$SCRIPT_DIR/meta-data" "$WORK_DIR/nocloud/meta-data"
+echo "✓ user-data and meta-data injected"
 
-# Modify GRUB to auto-select install with autoinstall
+# ── Patch GRUB ────────────────────────────────
+echo "→ Patching GRUB config..."
 GRUB_CFG="$WORK_DIR/boot/grub/grub.cfg"
-
-# Backup original
 cp "$GRUB_CFG" "$GRUB_CFG.orig"
 
-# Set default to first entry and zero timeout
+# Set 5 second countdown then auto-install
 sed -i "s/set timeout=.*/set timeout=5/" "$GRUB_CFG"
 sed -i "s/set timeout_style=.*/set timeout_style=countdown/" "$GRUB_CFG"
 
-# Add autoinstall + nocloud parameters to the first linux line
+# Add autoinstall params to the first linux kernel line
-# This patches the "Install Ubuntu Server" entry
 sed -i "/^\s*linux.*vmlinuz/s/$/ autoinstall quiet ds=nocloud;s=\/cdrom\/nocloud\//" "$GRUB_CFG"
+echo "✓ GRUB patched"
 
-echo "✓ GRUB config patched"
+# ── Get EFI partition info for repacking ───────
-
-# Get original ISO metadata for repacking
 MBR_TEMPLATE=$(mktemp)
 dd if="$ORIGINAL_ISO" bs=1 count=432 of="$MBR_TEMPLATE" 2>/dev/null
 
-# Get EFI partition info
+EFI_START=$(fdisk -l "$ORIGINAL_ISO" 2>/dev/null | grep "EFI" | awk '{print $2}')
-EFI_START=$(fdisk -l "$ORIGINAL_ISO" 2>/dev/null | grep "EFI" | awk "{print \$2}")
+EFI_SIZE=$(fdisk -l  "$ORIGINAL_ISO" 2>/dev/null | grep "EFI" | awk '{print $4}')
-EFI_SIZE=$(fdisk -l "$ORIGINAL_ISO" 2>/dev/null | grep "EFI" | awk "{print \$4}")
 
-echo "→ Repacking ISO..."
+# ── Repack ISO ─────────────────────────────────
+echo "→ Repacking ISO (this takes ~2 minutes)..."
 xorriso -as mkisofs \
   -r \
   -V "Cezen_AI_Ubuntu2204" \
-  -o /autoinstall/cezen-ai-ubuntu2204.iso \
+  -o "$OUTPUT_ISO" \
   --grub2-mbr "$MBR_TEMPLATE" \
   -partition_offset 16 \
   --mbr-force-bootable \
-  -append_partition 2 28732ac11ff8d211ba4b00a0c93ec93b "$WORK_DIR/boot/grub/efi.img" \
+  -append_partition 2 28732ac11ff8d211ba4b00a0c93ec93b \
+    "$WORK_DIR/boot/grub/efi.img" \
   -appended_part_as_gpt \
   -iso_mbr_part_type a2a0d0ebe5b9334487c068b6b72699c7 \
   -c "/boot.catalog" \
@@ -127,18 +100,17 @@ xorriso -as mkisofs \
   -boot-load-size 4 \
   "$WORK_DIR" 2>/dev/null
 
-echo "✓ ISO built successfully"
-ls -lh /autoinstall/cezen-ai-ubuntu2204.iso
-'
-
 echo ""
 echo "╔══════════════════════════════════════════════════════╗"
-echo "║   ISO built: autoinstall/cezen-ai-ubuntu2204.iso    ║"
+echo "║   Done!                                              ║"
-echo "║                                                      ║"
-echo "║   Flash to USB:                                      ║"
-echo "║   sudo dd if=autoinstall/cezen-ai-ubuntu2204.iso \  ║"
-echo "║        of=/dev/diskX bs=4m status=progress           ║"
-echo "║   (replace /dev/diskX with your USB drive)           ║"
 echo "╚══════════════════════════════════════════════════════╝"
 echo ""
-echo "→ To find your USB drive: diskutil list"
+ls -lh "$OUTPUT_ISO"
+echo ""
+echo "→ Copy to your MacBook:"
+echo "   scp user@172.16.10.180:~/aipackage/autoinstall/cezen-ai-ubuntu2204.iso ."
+echo ""
+echo "→ Flash to USB on MacBook:"
+echo "   diskutil list                        # find USB e.g. /dev/disk4"
+echo "   diskutil unmountDisk /dev/disk4"
+echo "   sudo dd if=cezen-ai-ubuntu2204.iso of=/dev/disk4 bs=4m status=progress"