# NousResearch/hermes-agent · Installer /dev/tty detection fix for Docker

## Open now

- Nothing open on GitHub.

A bug was reported where the installer's setup wizard fails in Docker builds due to an unreliable existence check on /dev/tty. A fix was proposed to probe /dev/tty by attempting to open it rather than checking for its bare existence.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 2 PR(s) closed without merging.
- A fix was merged to main in PR #17024. Verify it addresses your case.
- **Recommended:** read PR #17024 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `resolved` · deciding PR(s): `pr-17024`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.50`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Closed / duplicate issues

- #16746: \[Bug\]: Installer setup wizard fails in Docker builds: \[ -e /dev/tty \] check unreliable

## Prior & competing PRs

- **#16750: fix(install): probe /dev/tty by opening it, not bare existence (#16746)**. closed without merge · fix tier `suggested`
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#16746`
  - _suggested-tier fix detail withheld; re-request with `?tier=all` to include it._
- **#17024: fix(install): probe /dev/tty by opening it, not bare existence (#16746)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `scripts/install.sh`, `tests/test_install_sh_setup_wizard_tty_probe.py`
- **#16943: fix(install): probe /dev/tty by opening it, not bare existence**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#17024`

## Fix status

- Merged to main in PR #17024 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-04-28`.