Arch Linux

videobuff

Member

Registered: 2012-12-28

Posts: 3

Cannot make program start with systemd

Hello there,
as a newby i am slowly getting to grips with Arch Linux, but I cannot resolve the following after trying for some time.
I have ArchLinux running on a Raspberry PI.

I have a programme called aprx installed and to run it, I execute /sbin/aprx. The programme then starts, creates a pid file, called aprx.pid in the var/run directory and works smoothly, The programme uses a usn to serial port, which also works fine.(ttyUSB0)

Now I need this program to start at boot time, so I read up on systemd, and I wrote a file called aprx.service, put it in /etc/systemd/systems/, did all the right things to enable it as a service, i believe...
The content of aprx.service is as follows:

Unit]
Description=APRX Server, an iGate and Digipeater
After=dev-ttyUSB0.device
#
[Service]
ExecStart=/sbin/aprx
#
[Install]
WantedBy=multi-user.target

After reboot I get the following output on systemctl - status aprx.service

[root@pa0esh ~]# systemctl status aprx.service
aprx.service - APRX Server, an iGate and Digipeater
      Loaded: loaded (/etc/systemd/system/aprx.service; enabled)
      Active: inactive (dead) since Thu, 1970-01-01 01:00:06 BST; 43 years and 0 months ago
     Process: 97 ExecStart=/sbin/aprx (code=exited, status=0/SUCCESS)
      CGroup: name=systemd:/system/aprx.service

[root@pa0esh ~]#

However, the programme did nit really start, and there is also not a pid file.

So what am I doing wrong here ?
Any help is much appreciated.

Erik

Trilby

Inspector Parrot

Registered: 2011-11-29

Posts: 30,456

Website

Re: Cannot make program start with systemd

I suspect it did start, and was then stopped.  You'll need "Type=forking" in the [Service] section.

But - if this is a raspberry pi, this must be ArchARM right?  If so, they have their own forums, and as it is a different system we would not be able to help here.

---

"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman

videobuff

Member

Registered: 2012-12-28

Posts: 3

Re: Cannot make program start with systemd

Thanks for the quick reply - You are right, am I going there but will add the type to it...

Erik

DarkCerberus

Banned

From: Holsworthy, Devon

Registered: 2011-12-31

Posts: 252

Re: Cannot make program start with systemd

But - if this is a raspberry pi, this must be ArchARM right?  If so, they have their own forums, and as it is a different system we would not be able to help here.

They do indeed have a forum see here http://archlinuxarm.org/forum/  - and have a look under the "Devices" section on the forum.

---

Our enemies are your enemies, Nick. Disorder, war. It's just a matter of time before a dirty bomb goes off in Moscow, or an EMP fries Chicago.  ---  Alexander Pierce, Captain America: Winter Soldier
Access Denied! De-cryption failed, override denied all files sealed! --- Triskelion, Shield OS
-----
How to ask questions the smart way

videobuff

Member

Registered: 2012-12-28

Posts: 3

Re: Cannot make program start with systemd

Yes indeed, it is  ArchARM, Trilby

And so i found the solution for the service file aprx.service
Still, thanks a lot for pointing me out.
Erik

-------------------------------------------------------------------
[Unit]
Description=APRX Server, an iGate and Digipeater
After=dev-ttyUSB0.device

[Service]
User=root
Type=oneshot
RemainAfterExit=yes
ExecStart=/sbin/aprx

[Install]
WantedBy=multi-user.target