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[Solved] How can I make a custom .service run as root? (reddthat.com)

submitted 4 months ago* (last edited 4 months ago) by [email protected] to c/linux4noobs

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I have a VPN daemon that needs to run before the client will work. Normally, this would have been set up automatically by its install script, but the system is immutable.

I've created the systemd service via sysyemctl edit --force --full daemon.service with the following parameters:

[Unit] 
Description=Blah
After=network-online.target

[Service]
User=root
Group=root
ExecStart=/usr/bin/env /path/to/daemon

[Install]
WantedBy=multi-user.target

I've verified that the daemon is actually executable, and it runs fine when I manually call it via sudo daemon. When I try to run it with sudo systemctl enable --now daemon.service, it exits with error code 126.

What am I missing?

Edit: typo

Edit 2: Added script modifications. Daemon appears to be some kind of pre-compiled binary.

Solution: ExecStart wanted /usr/bin/env to launch the binary. The service file above has been edited to reflect the correct solution. See this post for further discussion.

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[–] [email protected] 4 points 4 months ago (1 children)

Does it say in your service file Wanted By or WantedBy?

[–] [email protected] 2 points 4 months ago

The latter. Autocorrect got that one.