hayodea
038d59f972
Centralize salmanoff snapcraft, dangerous-model image scripts, and QEMU workflow so UC26 can be reproduced from the SMO repo without ubuntu-core-practice. Co-authored-by: Cursor <cursoragent@cursor.com>
97 lines
2.3 KiB
Bash
Executable File
97 lines
2.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Build stock Ubuntu Core 26 amd64 image from Canonical's signed model assertion.
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set -euo pipefail
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UC_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
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MODEL="${UC_ROOT}/models/ubuntu-core-26-amd64.model"
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WORKDIR="${UC_ROOT}/work/ubuntu-image-snap"
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OUTPUT_DIR="${UC_ROOT}/artifacts/images"
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LOG_DIR="${UC_ROOT}/artifacts/logs"
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usage() {
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cat <<'EOF'
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Usage: build-stock-image.sh [OPTIONS]
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Build a stock ubuntu-core-26-amd64 disk image with ubuntu-image snap.
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Options:
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--fresh-workdir Remove work/ubuntu-image-snap before building (full re-download)
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--resume Pass --resume to ubuntu-image (continue partial build)
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-h, --help Show this help
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Outputs:
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artifacts/images/pc.img
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artifacts/images/pc.img.seed.manifest
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artifacts/logs/build-<timestamp>.log
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Host prerequisites:
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snap install ubuntu-image --classic
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scripts/fetch-model.sh (download signed model if missing)
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EOF
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}
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fresh_workdir=false
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resume=false
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while [[ $# -gt 0 ]]; do
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case "$1" in
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--fresh-workdir) fresh_workdir=true; shift ;;
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--resume) resume=true; shift ;;
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-h|--help) usage; exit 0 ;;
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*) echo "Unknown option: $1" >&2; usage >&2; exit 1 ;;
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esac
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done
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if [[ ! -f "$MODEL" ]]; then
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echo "Missing model assertion: $MODEL" >&2
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echo "Run: scripts/fetch-model.sh" >&2
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exit 1
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fi
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if ! command -v ubuntu-image >/dev/null 2>&1; then
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echo "ubuntu-image not found. Install with: sudo snap install ubuntu-image --classic" >&2
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exit 1
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fi
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mkdir -p "$OUTPUT_DIR" "$LOG_DIR"
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if [[ "$fresh_workdir" == true ]] || [[ "$resume" == false ]]; then
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if [[ -d "$WORKDIR" ]]; then
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echo "Removing workdir: $WORKDIR"
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rm -rf "$WORKDIR"
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fi
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fi
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mkdir -p "$WORKDIR"
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timestamp="$(date +%Y%m%d-%H%M%S)"
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log_file="${LOG_DIR}/build-${timestamp}.log"
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cmd=(ubuntu-image snap
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--workdir "$WORKDIR"
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--output-dir "$OUTPUT_DIR"
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--image-size 4G
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"$MODEL")
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if [[ "$resume" == true ]]; then
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cmd+=(--resume)
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fi
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echo "Model: $MODEL"
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echo "Workdir: $WORKDIR"
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echo "Output dir: $OUTPUT_DIR"
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echo "Log: $log_file"
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echo "Running: ${cmd[*]}"
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"${cmd[@]}" 2>&1 | tee "$log_file"
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img="${OUTPUT_DIR}/pc.img"
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if [[ ! -f "$img" ]]; then
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echo "Build finished but $img not found" >&2
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exit 1
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fi
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echo ""
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echo "Done. Image: $img"
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ls -lh "$img" "${img}.seed.manifest" 2>/dev/null || ls -lh "$img"
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