[Bug]: Gateway already running under systemd

[pkgaiassistant-droid]

Summary

after install all i get is the message below retrying.

[2026-03-27T13:08:36.125Z] [WARN ] [Gateway stderr] 2026-03-28T00:08:36.125+11:00 [gateway] already running under systemd; waiting 5000ms before retrying startup

Steps to Reproduce

Ubuntu install using terminal and website method:

Clone the repository

git clone https://github.com/ValueCell-ai/ClawX.git
cd ClawX

Initialize the project

pnpm run init

Start in development mode

pnpm dev

Expected Behavior

wait for wizard to complete install

Actual Behavior

[2026-03-27T13:10:27.281Z] [WARN ] [Gateway stderr] 2026-03-28T00:10:27.280+11:00 [gateway] already running under systemd; waiting 5000ms before retrying startup
[2026-03-27T13:10:37.386Z] [WARN ] [Gateway stderr] 2026-03-28T00:10:37.386+11:00 [gateway] already running under systemd; waiting 5000ms before retrying startup
[2026-03-27T13:10:47.489Z] [WARN ] [Gateway stderr] 2026-03-28T00:10:47.488+11:00 [gateway] already running under systemd; waiting 5000ms before retrying startup
[2026-03-27T13:10:57.583Z] [WARN ] [Gateway stderr] 2026-03-28T00:10:57.583+11:00 [gateway] already running under systemd; waiting 5000ms before retrying startup
[2026-03-27T13:11:07.683Z] [WARN ] [Gateway stderr] 2026-03-28T00:11:07.683+11:00 [gateway] already running under systemd; waiting 5000ms before retrying startup
[2026-03-27T13:11:17.787Z] [WARN ] [Gateway stderr] 2026-03-28T00:11:17.786+11:00 [gateway] already running under systemd; waiting 5000ms before retrying startup
[2026-03-27T13:11:27.891Z] [WARN ] [Gateway stderr] 2026-03-28T00:11:27.891+11:00 [gateway] already running under systemd; waiting 5000ms before retrying startup

Environment

Ubuntu 24.04.4 LTS
openclaw
v2026.3.24

Logs or Screenshots

Pre-Submission Checklist

• I searched existing issues and did not find a duplicate.
• I can reproduce this issue on the latest main branch build.

[ashione]

已提交修复 PR：#700

已做：

• 在启动网关子进程前清理 systemd 相关环境变量（OPENCLAW_SYSTEMD_UNIT / INVOCATION_ID / SYSTEMD_EXEC_PID / JOURNAL_STREAM），避免 "already running under systemd; waiting 5000ms" 的重试误判。
• 补充单元测试：tests/unit/config-sync.test.ts，覆盖删除行为、保留其他变量、非破坏式。
• 已通过校验：
  • pnpm exec tsc -p tsconfig.json --noEmit
  • pnpm exec vitest run tests/unit/config-sync.test.ts

当前风险：

• 本次变更仅影响 ClawX 启动网关子进程时的环境清理。
• 如未来有运行脚本明确依赖这些 systemd 标记变量的启动方式，需另行确认是否该走独立路径。