Exit code 203 linux

Systemd Service Failing with exit-code status=203/EXEC

I am trying to create a service to run on boot. The service is a program I wrote in C++ and compiled and is located in my users home directory. The program opens some UDP sockets and sits in an infinite loop so it does not exit automatically. I can run the program manually and everything works as expected but when I run systemctl start myservice then check the status I see that it is not running. Error results below + other useful information. FYI the operating system is CentOS Stream. Output from systemctl status myservice

myservice.service - my serivce Loaded: loaded (/etc/systemd/system/myservice.service; disabled; vendor present: disabled) Active: failed (Result: exit-code) since Process 2101 ExecStart=/home/user/program (code=exited, status=203/EXEC) Main PID: 2101 (code=exited, status=203/EXEC) 

myservice.service: Main process exited, code=exited, status=203/EXEC myservice.service: Failed with result 'exit-code' myservice.service: Service RestartSec=2s expired, scheduling restart 

[Unit] Description=my service After=network.target [Service] Type=simple ExecStart=/home/user/program User=user WorkingDirectory=/home/user/ Restart=always RestartSec=2 KillMode=process [Install] WantedBy=multi-user.target 

I understand that the 203 status usually means the file does not exist or does not have proper permissions so below is output to prove it is neither of those issues (hopefully) Output from ls -laZ /home/user/program -rwxrwxrwx. 1 root root unconfined_u:object_r:user_home_t:s0 803168 Aug 14 23:35 /home/user/program Output from sestatus

SELinux status: enabled SELinuxfs mount: /sys/fs/selinux SELinux root directory /etc/selinux Loaded policy name: targeted Current mode: enforcing Mode from config file: enforcing Policy MLS status: enabled Policy deny_unknown status: allowed Memory protection checking: actual (secure) Max kernel policy version: 33 

type=PROCTITLE msg=audit(08/16/2021 20:14:04.216:698) : proctitle=(ster_myservice) type=SYSCALL msg=audit(08/16/2021 20:14:04.216:698) : arch=x86_64 syscall=execve success=no exit=EACCES(Permission denied) a0=0x5572ff82e7a0 a1=0x5572ff6ff6d0 a2=0x5572ff7f54b0 a3=0x1 items=0 ppid=1 pid=2568 auid=unset uid=user gid=user euid=user suid=user fsuid=user egid=user sgid=user fsgid=user tty=(none) ses=unset comm=(ster_myservice) exe=/usr/lib/systemd/systemd subj=system_u:system_r:init_t:s0 key=(null) type=AVC msg=audit(08/16/2021 20:14:04.216:698) : avc: denied < execute >for pid=2568 comm=(ster_myservice) name=program dev="dm-2" ino=137 scontext=system_u:system_r:init_t:s0 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=0 

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Linux Systemd Service does not want to start .net core HelloWorld aplication (code=exited, status=203/EXEC)

##When runing status it gives me Acrive failed (Result:exit-code) Process ExecStart=/srv/HelloWorld/HelloWorld (code=exited, status=203/EXEC) (When i run my Heloworld using «/srv/HelloWorld/HelloWorld » in the console it does log Hello WOrld )

Can you add the complete output from systemd/journalctl? You can use —full and/or —no-pager to see the entire output. Please add it as text instead of pictures.

When you run /srv/HelloWorld/HelloWorld # it outputs’Hello World!’ is that running as the admin user?

1 Answer 1

I’m assuming you were following my blog post on running console apps on Linux (RHEL), based on the commands and comments that are matching. Thank you for reading and sorry you ran into issues. I happen to be refreshing this blog post and ran into the same issue as you, which is why I started Googling and found your question.

Unfortunately, RHEL and dotnet made some changes and the original instructions don’t work anymore. Luckily, I was able to resolve it by making some modifications to the service file:

[Unit] Description=Hello World console application [Service] # systemd will run this executable to start the service ExecStart=/usr/bin/dotnet /srv/HelloWorld/HelloWorld.dll # to query logs using journalctl, set a logical name here SyslogIdentifier=HelloWorld # Use your username to keep things simple. # If you pick a different user, make sure dotnet and all permissions are set correctly to run the app # To update permissions, use 'chown yourusername -R /srv/HelloWorld' to take ownership of the folder and files, # Use 'chmod +x /srv/HelloWorld/HelloWorld' to allow execution of the executable file User=admin # This environment variable is necessary when dotnet isn't loaded for the specified user. # To figure out this value, run 'env | grep DOTNET_ROOT' when dotnet has been loaded into your shell. Environment=DOTNET_ROOT=/usr/lib64/dotnet [Install] WantedBy=multi-user.target 

Specifically, pay attention to how I’m invoking the dotnet executable and passing the path to the HelloWorld.dll as an argument. This is also what the HelloWorld executable file is supposed to do, but for some reason, no longer works.

I’m not sure if you’re using RHEL or how you installed .NET, so you may want to replace the path to the dotnet executable (/usr/bin/dotnet), to the path where your dotnet executable is loaded. The easiest way to find this path is by running which dotnet . Alternatively, you can find the path by running dotnet —info to figure out where the SDK is installed, and start digging for the dotnet executable.

Also, the DOTNET_ROOT env variable had to be set in the service for me. I used the env | grep DOTNET_ROOT command to find the correct value for the env variable.

Next time, feel free to message me, so I can be notified and update my content more quickly. Let me know if this works!

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Fixing a systemd service 203/EXEC failure (no such file or directory)

I’m trying to set up a simple systemd timer to run a bash script every day at midnight. systemctl —user status backup.service fails and logs the following:

backup.service: Failed at step EXEC spawning /home/user/.scripts/backup.sh: No such file or directory. backup.service: Main process exited, code=exited, status=203/EXEC Failed to start backup. backup.service: Unit entered failed state. backup.service: Failed with result 'exit-code'. 

I’m lost, since the files and directories exist. The script is executable and, just to check, I’ve even set permissions to 777. Some background: The backup.timer and backup.service unit files are located in /home/user/.config/systemd/user . backup.timer is loaded and active, and currently waiting for midnight. Here’s what it looks like:

[Unit] Description=Runs backup at 0000 [Timer] OnCalendar=daily Unit=backup.service [Install] WantedBy=multi-user.target 

[Unit] Description=backup [Service] Type=oneshot ExecStart=/home/user/.scripts/backup.sh [Install] WantedBy=multi-user.target 

#!/usr/env/bin bash rsync -a --delete --quiet /home/user/directory/ /mnt/drive/directory-backup/ 

The script runs fine if I execute it myself. Not sure if it matters, but I use fish as my shell (started from .bashrc). I’m happy to post the full script if that’s helpful.

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Ошибка при запуске сервиса на Ubuntu, что за ошибка (code=exited, status=203/EXEC)?

[Service]
User=administrator
Group=administrator
WorkingDirectory=/home/administrator/flask/loaders_webserv
Environment=»PATH=/home/administrator/flask/loaders_webserv/bin»
ExecStart=/home/administrator/flask/loaders_webserv/bin/gunicorn —workers 5 —bind 10.1.11.25:36361 main:app
Restart=always

× loaders.service — Gunicorn instance to serve loaders webserv API
Loaded: loaded (/etc/systemd/system/loaders.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Mon 2023-01-23 10:28:30 +04; 1h 31min ago
Process: 122900 ExecStart=/home/administrator/flask/loaders_webserv/bin/gunicorn —workers 5 —bind 0.0.0.0:36361 main:app (code=exited, status=203/EXEC)
Main PID: 122900 (code=exited, status=203/EXEC)
CPU: 1ms

янв 23 10:28:30 pa-srv24 systemd[1]: loaders.service: Scheduled restart job, restart counter is at 5.
янв 23 10:28:30 pa-srv24 systemd[1]: Stopped Gunicorn instance to serve loaders webserv API.
янв 23 10:28:30 pa-srv24 systemd[1]: loaders.service: Start request repeated too quickly.
янв 23 10:28:30 pa-srv24 systemd[1]: loaders.service: Failed with result ‘exit-code’.
янв 23 10:28:30 pa-srv24 systemd[1]: Failed to start Gunicorn instance to serve loaders webserv API.

Простой 2 комментария

administrator@pa-srv24:~/flask/loaders_webserv$ sudo chown administrator /home/administrator/flask/loaders_webserv/bin/gunicorn
chown: невозможно получить доступ к ‘/home/administrator/flask/loaders_webserv/bin/gunicorn’: Нет такого файла или каталога

Возможно, journalctl может подсказать подробности: journalctl -u loaders.service
Stackoverflow советует проверить, есть ли у пользователя (в твоем случае administrator) права на запуск

/home/administrator/flask/loaders_webserv/bin/gunicorn

янв 17 09:10:29 pa-srv24 systemd[1]: Started Gunicorn instance to serve loaders webserv API.
янв 17 09:10:29 pa-srv24 systemd[1]: loaders.service: Main process exited, code=exited, status=203/EXEC
янв 17 09:10:29 pa-srv24 systemd[1]: loaders.service: Failed with result ‘exit-code’.
янв 17 09:10:29 pa-srv24 systemd[1]: loaders.service: Scheduled restart job, restart counter is at 1.
янв 17 09:10:29 pa-srv24 systemd[1]: Stopped Gunicorn instance to serve loaders webserv API.

янв 17 09:10:29 pa-srv24 systemd[1]: Started Gunicorn instance to serve loaders webserv API.
янв 17 09:10:29 pa-srv24 systemd[82866]: loaders.service: Failed to locate executable /home/administrator/flask/loaders_webserv/bin/gunicorn: No such file or directory
янв 17 09:10:29 pa-srv24 systemd[82866]: loaders.service: Failed at step EXEC spawning /home/administrator/flask/loaders_webserv/bin/gunicorn: No such file or directory
янв 17 09:10:29 pa-srv24 systemd[1]: loaders.service: Main process exited, code=exited, status=203/EXEC
янв 17 09:10:29 pa-srv24 systemd[1]: loaders.service: Failed with result ‘exit-code’.
янв 17 09:10:29 pa-srv24 systemd[1]: loaders.service: Scheduled restart job, restart counter is at 2.
янв 17 09:10:29 pa-srv24 systemd[1]: Stopped Gunicorn instance to serve loaders webserv API.
янв 17 09:10:29 pa-srv24 systemd[1]: Started Gunicorn instance to serve loaders webserv API.
янв 17 09:10:29 pa-srv24 systemd[82867]: loaders.service: Failed to locate executable /home/administrator/flask/loaders_webserv/bin/gunicorn: No such file or directory
янв 17 09:10:29 pa-srv24 systemd[82867]: loaders.service: Failed at step EXEC spawning /home/administrator/flask/loaders_webserv/bin/gunicorn: No such file or directory
янв 17 09:10:29 pa-srv24 systemd[1]: loaders.service: Main process exited, code=exited, status=203/EXEC
янв 17 09:10:29 pa-srv24 systemd[1]: loaders.service: Failed with result ‘exit-code’.
янв 17 09:10:29 pa-srv24 systemd[1]: loaders.service: Scheduled restart job, restart counter is at 3.

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systemd «status=203/EXEC» error when creating new service

I’ve created a new service for a Python script that works when running standalone but gives errors below when run through systemd :

Oct 02 12:17:09 raspberrypi systemd[1]: Started Read pressure And Post to mqtt. Oct 02 12:17:09 raspberrypi systemd[1]: ReadPressure.service: Main process exited, code=exited, status=203/EXEC Oct 02 12:17:09 raspberrypi systemd[1]: ReadPressure.service: Unit entered failed state. Oct 02 12:17:09 raspberrypi systemd[1]: ReadPressure.service: Failed with result 'exit-code'. Oct 02 12:17:09 raspberrypi systemd[1]: ReadPressure.service: Service hold-off time over, scheduling restart. Oct 02 12:17:09 raspberrypi systemd[1]: Stopped Read pressure And Post to mqtt. Oct 02 12:17:09 raspberrypi systemd[1]: ReadPressure.service: Start request repeated too quickly. Oct 02 12:17:09 raspberrypi systemd[1]: Failed to start Read pressure And Post to mqtt. Oct 02 12:17:09 raspberrypi systemd[1]: ReadPressure.service: Unit entered failed state. Oct 02 12:17:09 raspberrypi systemd[1]: ReadPressure.service: Failed with result 'exit-code'. 

The service was created in «etc/systemd/system/ReadPressure.service. it has executable rights. The services looks like :

[Unit] Description=ReadPressure [Service] ExecStart=/bin/bash -c 'python3 -u /home/pi/ReadPressure/ReadPressure2AndPostToMqtt.py' WorkingDirectory=/home/pi/ReadPressure/ Restart=always User=pi [Install] WantedBy=multi-user.target 

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