GitHub Actions Self-Hosted Runner runsvc.sh Becomes 0 Bytes After Auto-Update

What this error means

GitHub Actions self-hosted runner runsvc.sh 0 bytes after auto-update from v2.328.0 to v2.334.0 is a GitHub Actions failure pattern reported for developers trying to fix github actions runner runsvc.sh empty file after auto-update breaking service. Based on the imported evidence, treat this as a tool-specific troubleshooting page rather than a generic API error.

Why this happens

Observed on 3/3 hosts in fleet within 24h. Affects Ubuntu 24.04 and Linux Mint 22. Workaround: ExecStartPre script to copy non-empty runsvc.sh from sibling bin.* directory.

Common causes

• Auto-update writes 0-byte runsvc.sh. Runner continues from memory but next restart causes systemd Status=203/EXEC failure. Registration eventually removed by GC.
• Observed on 3/3 hosts in fleet within 24h. Affects Ubuntu 24.04 and Linux Mint 22. Workaround: ExecStartPre script to copy non-empty runsvc.sh from sibling bin.* directory.

Quick fixes

1. Confirm the exact error signature matches GitHub Actions self-hosted runner runsvc.sh 0 bytes after auto-update from v2.328.0 to v2.334.0.
2. Check the GitHub Actions account, local tool state, and provider configuration involved in the failing workflow.
3. Compare the failing environment with a known working setup, then change one configuration value at a time.

Platform/tool-specific checks

• Verify the command, editor, extension, or API client that produced the error.
• Compare local settings with CI, deployment, or editor-level settings when the error appears in only one environment.
• Avoid deleting credentials, local model data, or project settings until the failing scope is clear.

Step-by-step troubleshooting

1. Capture the exact error message and the command, editor action, or request that triggered it.
2. Check whether the failure is account/auth, quota/rate, model/provider, local runtime, or deployment configuration.
3. Review the source evidence below and compare it with your environment.
4. Apply one change at a time and rerun the smallest failing action.
5. Keep the working fix documented for the team or deployment environment.

How to prevent it

• Keep provider/tool configuration documented.
• Record non-secret diagnostics such as tool version, provider name, model name, and command path.
• Add a lightweight check before CI or production workflows depend on the tool.

Sources checked

• https://github.com/actions/runner/issues/4421

Evidence note: Observed on 3/3 hosts in fleet within 24h. Affects Ubuntu 24.04 and Linux Mint 22. Workaround: ExecStartPre script to copy non-empty runsvc.sh from sibling bin.* directory.

Related errors

• GitHub Actions permission denied publickey
• GitHub Actions npm ci lockfile error

FAQ

What should I check first?

Start with the exact GitHub Actions self-hosted runner runsvc.sh 0 bytes after auto-update from v2.328.0 to v2.334.0 text and the smallest action that reproduces it.

Can I ignore this error?

No. Treat it as a failed GitHub Actions workflow until the root cause is understood.

Is this guaranteed to have one fix?

No. The imported evidence supports the troubleshooting path above, but tool behavior can vary by account, plan, version, provider, and local configuration.

How do I know the fix worked?

Rerun the same command, editor action, or request. The fix is working when that action completes without GitHub Actions self-hosted runner runsvc.sh 0 bytes after auto-update from v2.328.0 to v2.334.0.