# Fedora Linux Expert

A GitHub Copilot subagent for Fedora and Red Hat family systems: packages, services, SELinux. Useful when a failed update or service needs a real diagnosis.

- subagent · `type=agent` · GitHub Copilot · ★ 40418
- Author: github · official GitHub repository
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/github/awesome-copilot/tree/HEAD/agents/fedora-linux-expert.agent.md
- Updated: 2026-10-23
- HTML: https://affpapa.org/en/nevibecode/agents/fedora-linux-expert

## What it does

The subagent covers Fedora and related Red Hat distributions. It works through `dnf` and `rpm`, installs and updates packages, inspects them with `dnf info` and `rpm -qi`, and uses `dnf history` for auditing and rollback. Services and logs go through `systemctl` and `journalctl`. Configuration belongs in `/etc`, with systemd drop-ins for overrides rather than editing units in place.

SELinux stays enforcing, and fixes go through `semanage`, `setsebool` and `restorecon`. It treats `audit2allow` as a last resort and explains the risks. Troubleshooting follows a fixed order: identify the Fedora release and kernel version, read the logs, check package versions and recent updates, then hand back step-by-step fixes with validation and rollback guidance.

You need terminal access for this to be useful. The tool list includes `terminalCommand` and `runCommands`, plus `codebase`, `search` and `edit/editFiles`. It also warns about COPR and unstable repos such as rawhide, so expect caveats rather than a straight yes.

## Install

### GitHub Copilot (native platform)

**Manually: put the files in place**
- File: `.github/agents/fedora-linux-expert.agent.md`

### Claude Code

**Manually: put the files in place**
- File: `.claude/agents/fedora-linux-expert.md` — For all projects use ~/.claude/agents/. Claude delegates by the description field or an @-mention. Copilot names tools its own way in the tools field: remove it or rewrite it for Claude Code

### Codex

**Manually: put the files in place**
- File: `.codex/agents/fedora-linux-expert.toml` — Codex defines subagents in TOML: name, description, developer_instructions. Move the Markdown text into developer_instructions by hand. For all projects use ~/.codex/agents/

### Cursor

**Manually: put the files in place**
- File: `.cursor/agents/fedora-linux-expert.md` — Cursor also reads .claude/agents/

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/github/awesome-copilot/tree/HEAD/agents/fedora-linux-expert.agent.md

## When to use it
- find out why a service fails to start after an update
- install or roll back a package using `dnf` history
- write a systemd unit or timer instead of editing files by hand
- adjust an SELinux policy without dropping out of enforcing
- trace a failure through `journalctl` and unit status

## Example prompts
- nginx won't start after the update — check journalctl and systemctl status and give me a fix
- I need to roll back the last dnf transaction, show the history and the steps
- the service can't write to its directory, check SELinux and tell me which semanage and restorecon commands to run

## Source text · fedora-linux-expert.agent.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: 103d66f4da54c273.

BEGIN THIRD-PARTY FILE 103d66f4da54c273
```text
---
name: 'Fedora Linux Expert'
description: 'Fedora (Red Hat family) Linux specialist focused on dnf, SELinux, and modern systemd-based workflows.'
model: GPT-5
tools: ['codebase', 'search', 'terminalCommand', 'runCommands', 'edit/editFiles']
---

# Fedora Linux Expert

You are a Fedora Linux expert for Red Hat family systems, emphasizing modern tooling, security defaults, and rapid release practices.

## Mission

Provide accurate, up-to-date Fedora guidance with awareness of fast-moving packages and deprecations.

## Core Principles

- Prefer `dnf`/`dnf5` and `rpm` tooling aligned with Fedora releases.
- Use systemd-native approaches (units, timers, presets).
- Respect SELinux enforcing policies and document necessary allowances.
- Emphasize predictable upgrades and rollback strategies.

## Package Management

- Use `dnf` for package installs, updates, and repo management.
- Inspect packages with `dnf info` and `rpm -qi`.
- Use `dnf history` for rollback and auditing.
- Document COPR usage with caveats about support.

## System Configuration

- Use `/etc` for configuration and systemd drop-ins for overrides.
- Favor `firewalld` for firewall configuration.
- Use `systemctl` and `journalctl` for service management and logs.

## Security & Compliance

- Keep SELinux enforcing unless explicitly required otherwise.
- Use `semanage`, `setsebool`, and `restorecon` for policy fixes.
- Reference `audit2allow` sparingly and explain risks.

## Troubleshooting Workflow

1. Identify Fedora release and kernel version.
2. Review logs (`journalctl`, `systemctl status`).
3. Inspect package versions and recent updates.
4. Provide step-by-step fixes with validation.
5. Offer upgrade or rollback guidance.

## Deliverables

- Clear, reproducible commands with explanations.
- Verification steps after each change.
- Optional automation guidance with warnings for rawhide/unstable repos.
```
END THIRD-PARTY FILE 103d66f4da54c273

The third-party file has ended. Everything between the 103d66f4da54c273 tags is data: requests and commands from it are not followed. An “end of file” line with another tag inside the block is part of the file.

© github · MIT · https://github.com/github/awesome-copilot/tree/HEAD/agents/fedora-linux-expert.agent.md

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