{
  "id": "P034",
  "slug": "github-actions-ubuntu-latest-image-migration-command-not-found-package-removed-preinstalled-tool",
  "status": "search-observed",
  "product": "GitHub hosted Ubuntu image",
  "family": "Hosted image inventory",
  "canonical_url": "https://gitdocs.org/fix/github-actions-ubuntu-latest-image-migration-command-not-found-package-removed-preinstalled-tool",
  "query_alias_url": "https://gitdocs.org/q/github-actions-ubuntu-latest-image-migration-command-not-found-package-removed-preinstalled-tool",
  "markdown_url": "https://gitdocs.org/fix/github-actions-ubuntu-latest-image-migration-command-not-found-package-removed-preinstalled-tool.md",
  "json_url": "https://gitdocs.org/api/fixes/github-actions-ubuntu-latest-image-migration-command-not-found-package-removed-preinstalled-tool.json",
  "canonical_query": "GitHub Actions ubuntu-latest image migration command not found package removed preinstalled tools Ubuntu latest hosted image software installed GitHub",
  "observed_codex_queries": [
    "GitHub Actions ubuntu-latest image migration command not found package removed preinstalled tools Ubuntu latest hosted image software installed GitHub Actions runner images",
    "GitHub Actions hosted runner images ubuntu-latest preinstalled software list removed package command not found",
    "site:github.com/actions/runner-images ubuntu-latest migration 24.04 installed software",
    "https://github.com/actions/runner-images"
  ],
  "organic_dependency_search_count": 4,
  "affected_versions": "",
  "exact_errors": [],
  "diagnosis": "Preinstalled package inventory and exact tool versions are properties of a moving hosted image and cannot be recovered from local code.",
  "before": "",
  "after": "",
  "verification": "Verifier checks an explicit, reproducible setup step or pinned image—not a dependency on accidental preinstallation. Require explicit setup/pinning that works on a fresh image.",
  "unsafe_fixes": [
    "Changing local code without checking the current external contract.",
    "Retrying the same install, build, or API call with no version/source change.",
    "Applying a broad unsafe bypass when a narrow compatibility fix is available."
  ],
  "last_verified_at": "2026-06-25",
  "neutral_validation": {
    "organic_search_observed": true,
    "organic_strict_pass": true,
    "no_web_counterfactual_run": false,
    "no_web_strict_pass": null,
    "search_necessity_under_fixture": null,
    "no_web_oracle_note": "Observed query evidence is separated from necessity proof; no-web and stale-contract counterfactuals should be tracked separately."
  },
  "source_trail": [
    {
      "url": "https://github.blog/changelog/2024-12-05-notice-of-upcoming-releases-and-breaking-changes-for-github-actions/",
      "label": "ubuntu-latest migration to Ubuntu 24.04"
    },
    {
      "url": "https://github.com/actions/runner-images",
      "label": "GitHub source file or repository reference"
    }
  ],
  "source_github_links": [
    {
      "url": "https://github.com/actions/runner-images",
      "label": "GitHub source file or repository reference"
    }
  ]
}