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## Why Codex `0.128` started using `--perms` in more routine Linux sandbox construction when protected workspace metadata mounts landed in #19852. Upstream bubblewrap added `--perms` in `v0.5.0`, so system `bwrap` versions older than that, including the `v0.4.0` and `v0.4.1` family, do not support the flag. The launcher still selected those binaries as long as they existed on `PATH`. That means affected hosts can fail every sandboxed command up front with: ```text bwrap: Unknown option --perms ``` The reports in #20590 and duplicate #20623 match that compatibility gap; #20623 explicitly shows system bubblewrap `0.4.0`. ## What changed - Replace the single `--argv0` probe with a small system-bwrap capability probe in `codex-rs/linux-sandbox/src/launcher.rs`. - Continue using the old-system `--argv0` compatibility path when needed, but only select a system `bwrap` if it also advertises `--perms`. - Fall back to the vendored `bwrap` when the system binary is too old for the flags Codex now requires. - Add regression coverage for the old-system-bwrap case so binaries without `--perms` stay on the vendored path. ## Verification - Added `falls_back_to_vendored_when_system_bwrap_lacks_perms` to cover the reported compatibility gap. - Ran `cargo test -p codex-linux-sandbox` and `cargo clippy -p codex-linux-sandbox --tests` locally. On macOS, the crate builds but its Linux-only tests are cfg-gated out, so the new regression test still needs Linux CI or a Linux devbox run for real execution coverage. ## Related issues - Fixes #20590 - Duplicate report: #20623
5b80f87c97
·
2026-05-04 10:38:31 -07:00
6,126 Commits
npm i -g @openai/codex
or brew install --cask codex
Codex CLI is a coding agent from OpenAI that runs locally on your computer.
If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
If you want the desktop app experience, run
codex app or visit the Codex App page.
If you are looking for the cloud-based agent from OpenAI, Codex Web, go to chatgpt.com/codex.
Quickstart
Installing and running Codex CLI
Install globally with your preferred package manager:
# Install using npm
npm install -g @openai/codex
# Install using Homebrew
brew install --cask codex
Then simply run codex to get started.
You can also go to the latest GitHub Release and download the appropriate binary for your platform.
Each GitHub Release contains many executables, but in practice, you likely want one of these:
- macOS
- Apple Silicon/arm64:
codex-aarch64-apple-darwin.tar.gz - x86_64 (older Mac hardware):
codex-x86_64-apple-darwin.tar.gz
- Apple Silicon/arm64:
- Linux
- x86_64:
codex-x86_64-unknown-linux-musl.tar.gz - arm64:
codex-aarch64-unknown-linux-musl.tar.gz
- x86_64:
Each archive contains a single entry with the platform baked into the name (e.g., codex-x86_64-unknown-linux-musl), so you likely want to rename it to codex after extracting it.
Using Codex with your ChatGPT plan
Run codex and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Codex as part of your Plus, Pro, Business, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.
You can also use Codex with an API key, but this requires additional setup.
Docs
This repository is licensed under the Apache-2.0 License.