Fix: "Device Signature Invalid" After OpenClaw Update (Systemd Service Path Mismatch)

If you've updated OpenClaw and are now seeing device signature invalid errors despite your gateway appearing to run normally, you're not alone. This issue has been hitting users upgrading from 2026.2.24 to 2026.2.26, and the community has now pinpointed the root cause.

The Problem

When you run openclaw update, the package manager (npm or pnpm) installs the new version, but your systemd service file still points to the old version's entry.js. The old binary runs with code that can't validate the new device signature — hence the cryptic error.

Why It's Hard to Catch

Here's the frustrating part: everything looks fine.

• openclaw --version shows the new version (the CLI resolves correctly via PATH)
• openclaw gateway status shows running (systemd thinks it's fine)
• But the actual Gateway process is running old code

The error message device signature invalid gives zero indication that you're dealing with a version mismatch.

The Workaround (Right Now)

Until a proper fix ships, you can manually update your systemd service file:

1. Open your service file:

   nano ~/.config/systemd/user/openclaw-gateway.service

2. Find the ExecStart line and update the path to point to your new version's entry.js. For example:

   ExecStart=/usr/bin/node /path/to/openclaw@2026.2.26/dist/entry.js

3. Reload and restart:

   systemctl --user daemon-reload
   systemctl --user restart openclaw-gateway
   

Proposed Fixes

The community has suggested three approaches that could land in a future release:

Option A (Auto-patch): During openclaw update, detect if a systemd service file exists and automatically update the ExecStart path to match the newly installed version.

Option B (Stable symlink): Maintain a stable symlink like ~/.openclaw/bin/entry.js that always points to the current version's entry point. The service file would reference the symlink, never needing updates.

Option C (Better diagnostics): Add a version check in openclaw gateway status that compares the CLI version with the binary the service is actually running. If they differ, show a clear warning instead of letting users discover the mismatch through cryptic errors.

Who's Affected?

This primarily affects Linux users running OpenClaw as a systemd service with global npm/pnpm installs. If you're running OpenClaw directly from source or using Docker, you likely won't hit this.

Discussion

Follow the conversation and proposed fixes in GitHub Issue #28209. If you've hit this on other setups or have additional workarounds, chime in there.