145 lines
5.3 KiB
Bash
145 lines
5.3 KiB
Bash
#!/usr/bin/env bash
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# ─────────────────────────────────────────────────────────────
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# Cezen AI Suite — Custom ISO Builder
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# Runs on macOS using Docker. Produces a bootable USB image.
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#
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# Usage: bash autoinstall/build-iso.sh
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# Output: autoinstall/cezen-ai-ubuntu2204.iso
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#
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# Requirements:
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# - Docker Desktop running on your MacBook
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# - ~6 GB free disk space (ISO download + work)
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# ─────────────────────────────────────────────────────────────
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set -e
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
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OUTPUT_ISO="$SCRIPT_DIR/cezen-ai-ubuntu2204.iso"
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UBUNTU_ISO_URL="https://releases.ubuntu.com/22.04.5/ubuntu-22.04.5-live-server-amd64.iso"
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echo "╔══════════════════════════════════════════╗"
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echo "║ Cezen AI — ISO Builder ║"
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echo "╚══════════════════════════════════════════╝"
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echo ""
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# Check Docker is running
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if ! docker info &>/dev/null; then
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echo "ERROR: Docker is not running. Start Docker Desktop and try again."
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exit 1
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fi
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echo "✓ Docker is running"
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# Check autoinstall files exist
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if [ ! -f "$SCRIPT_DIR/user-data" ] || [ ! -f "$SCRIPT_DIR/meta-data" ]; then
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echo "ERROR: user-data or meta-data not found in $SCRIPT_DIR"
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exit 1
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fi
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echo "✓ Autoinstall files found"
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echo ""
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echo "→ Building ISO inside Docker container (Ubuntu 22.04)..."
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echo " This will take 5–15 minutes depending on internet speed."
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echo ""
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docker run --rm \
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-v "$SCRIPT_DIR:/autoinstall" \
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-v "$REPO_ROOT:/repo" \
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ubuntu:22.04 \
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bash -c '
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set -e
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# Install tools
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export DEBIAN_FRONTEND=noninteractive
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apt-get update -qq
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apt-get install -y -qq xorriso wget isolinux rsync
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WORK_DIR="/tmp/iso-work"
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ORIGINAL_ISO="/tmp/ubuntu-22.04.5-live-server-amd64.iso"
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UBUNTU_URL="https://releases.ubuntu.com/22.04.5/ubuntu-22.04.5-live-server-amd64.iso"
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# Download Ubuntu ISO if not already cached
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if [ ! -f "$ORIGINAL_ISO" ]; then
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echo "→ Downloading Ubuntu 22.04.5 Server ISO (~1.8 GB)..."
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wget -q --show-progress -O "$ORIGINAL_ISO" "$UBUNTU_URL"
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fi
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echo "✓ Ubuntu ISO ready"
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# Extract ISO contents
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echo "→ Extracting ISO..."
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rm -rf "$WORK_DIR"
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mkdir -p "$WORK_DIR"
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xorriso -osirrox on \
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-indev "$ORIGINAL_ISO" \
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-extract / "$WORK_DIR" 2>/dev/null
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chmod -R u+w "$WORK_DIR"
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echo "✓ ISO extracted"
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# Inject autoinstall files
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echo "→ Injecting autoinstall config..."
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mkdir -p "$WORK_DIR/nocloud"
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cp /autoinstall/user-data "$WORK_DIR/nocloud/user-data"
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cp /autoinstall/meta-data "$WORK_DIR/nocloud/meta-data"
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# Modify GRUB to auto-select install with autoinstall
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GRUB_CFG="$WORK_DIR/boot/grub/grub.cfg"
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# Backup original
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cp "$GRUB_CFG" "$GRUB_CFG.orig"
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# Set default to first entry and zero timeout
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sed -i "s/set timeout=.*/set timeout=5/" "$GRUB_CFG"
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sed -i "s/set timeout_style=.*/set timeout_style=countdown/" "$GRUB_CFG"
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# Add autoinstall + nocloud parameters to the first linux line
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# This patches the "Install Ubuntu Server" entry
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sed -i "/^\s*linux.*vmlinuz/s/$/ autoinstall quiet ds=nocloud;s=\/cdrom\/nocloud\//" "$GRUB_CFG"
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echo "✓ GRUB config patched"
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# Get original ISO metadata for repacking
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MBR_TEMPLATE=$(mktemp)
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dd if="$ORIGINAL_ISO" bs=1 count=432 of="$MBR_TEMPLATE" 2>/dev/null
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# Get EFI partition info
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EFI_START=$(fdisk -l "$ORIGINAL_ISO" 2>/dev/null | grep "EFI" | awk "{print \$2}")
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EFI_SIZE=$(fdisk -l "$ORIGINAL_ISO" 2>/dev/null | grep "EFI" | awk "{print \$4}")
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echo "→ Repacking ISO..."
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xorriso -as mkisofs \
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-r \
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-V "Cezen_AI_Ubuntu2204" \
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-o /autoinstall/cezen-ai-ubuntu2204.iso \
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--grub2-mbr "$MBR_TEMPLATE" \
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-partition_offset 16 \
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--mbr-force-bootable \
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-append_partition 2 28732ac11ff8d211ba4b00a0c93ec93b "$WORK_DIR/boot/grub/efi.img" \
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-appended_part_as_gpt \
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-iso_mbr_part_type a2a0d0ebe5b9334487c068b6b72699c7 \
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-c "/boot.catalog" \
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-b "/boot/grub/i386-pc/eltorito.img" \
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-no-emul-boot \
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-boot-load-size 4 \
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-boot-info-table \
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--grub2-boot-info \
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-eltorito-alt-boot \
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-e "--interval:appended_partition_2_start_${EFI_START}s_size_${EFI_SIZE}s:all::" \
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-no-emul-boot \
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-boot-load-size 4 \
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"$WORK_DIR" 2>/dev/null
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echo "✓ ISO built successfully"
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ls -lh /autoinstall/cezen-ai-ubuntu2204.iso
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'
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echo ""
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echo "╔══════════════════════════════════════════════════════╗"
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echo "║ ISO built: autoinstall/cezen-ai-ubuntu2204.iso ║"
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echo "║ ║"
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echo "║ Flash to USB: ║"
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echo "║ sudo dd if=autoinstall/cezen-ai-ubuntu2204.iso \ ║"
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echo "║ of=/dev/diskX bs=4m status=progress ║"
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echo "║ (replace /dev/diskX with your USB drive) ║"
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echo "╚══════════════════════════════════════════════════════╝"
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echo ""
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echo "→ To find your USB drive: diskutil list"
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