systemd is an alternative approach to SystemV init daemon for Linux. It is intended to provide a better framework for expressing services' dependencies, allow more work to be done in parallel at system startup, and to reduce shell overhead.

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How to write startup script for systemd

I have 2 graphics cards on my laptop, one is IGP and another discrete, I've written a shell script to to turn off discrete graphics card. How I can convert it to systemd script, to runt at start-up?
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1answer
880 views

Which systemd service starts text console on the framebuffer device?

I'm working with an embedded platform and need to have /dev/fb0 clear for my own use (the device accessible over serial console while the screen is used to display information, without X.). I've ...
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3answers
17k views

How to run a script with systemd right before shutdown?

What do I need to put in the [install] section, so that systemd runs /home/me/so.pl right before shutdown and also before /proc/self/net/dev gets destroyed? [Unit] Description=Log Traffic [Service] ...
6
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1answer
304 views

How does gnome reboot without root privileges?

I am reading the book Linux kernel development, in chapter 5 "System Call Implementation" page 77 says For example, capable(CAP_SYS_NICE) checks whether the caller has the ability to modify ...
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7answers
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Cause a script to execute after networking has started?

I am relatively new to systemd and am learning its architecture. Right now, I'm trying to figure out how to cause a custom shell script to run. This script needs to run after the networking layer has ...
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2answers
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How display log messages from previous boots under CentOS 7?

Executing journalctl under a CentOS 7 system just prints messages generated after the last boot. The command # journalctl --boot=-1 prints Failed to look up boot -1: Cannot assign requested ...
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3answers
5k views

Non-graphical boot with systemd

I want to boot to console instead of a GUI using systemd. How can I do that?
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2answers
226 views

Porting old sysvinit habits to systemd

I have a series of script with which I was able to install and configure newly Debian stable systems. To automatically start programs I use /etc/rc.local but for other cases I had to manually change ...
36
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5answers
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How to clear journalctl

I couldn't find in google any safe way to clear systemd journal. Do anyone know any safe and reliable way to do so? Added: As a reason, let's say I was experimenting with something and my logs got ...
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1answer
103 views

Saving process output to a file in systemd unit file

I created a systemd file unit (Centos 7) and I wanted to save the Python output to a file but the service won't start with the below code. [root@static ~]# cat /etc/systemd/system/pykms.service ...
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0answers
157 views

How to determine which init system is used? [duplicate]

Is there a way to determine which init system is being used in Linux? (such as sysvinit, upstart, systemd, etc.) I don't care if it can be programmatically determined, I just want to know how I can ...
0
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1answer
104 views

NixOS no login prompt in virtual terminals

I have NixOS built using 15.09 channel, session manager is sddm, display manager is KDE 5. Switching to virtual ttys from 1 to 6 gives me no login prompt, I see same piece of log everywhere: ...
0
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1answer
3k views

Debian and Systemd: breaking ordering cycle error

I'm a new embedded developer I'm trying to make systemd 37 work with freescale vybrid board (A5 and M4) running on linux-3.0 After boot with some breaking ordering cycle error, I check with ps ...
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2answers
45k views

View stdout/stderr of systemd service

I have created a simple systemd service file for a custom application. The application works well when I run it manually, but my CPU gets maxed out when I run it with systemd. I'm trying do track ...
14
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2answers
14k views

How does systemd use /etc/init.d scripts?

I just switched to debian jessie, and most things run okay, including my graphical display manager wdm. The thing is, I just don't understand how this works. Obviously my /etc/init.d/wdm script is ...
19
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3answers
7k views

How to get fewer ttys with Systemd?

In the old days I just modified /etc/inittab. Now, with systemd, it seems to start tty[1-6] automatically, how should I disable tty[4-6]? Looks like there's only one systemd service file, and it use ...
3
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1answer
2k views

Systemd kills service immediately after start

I'm writing systemd unit file for OSSEC HIDS. Problem is that when systemd starts service it immediately stops them. When I use that ExecStart directive all working fine. ...
3
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1answer
663 views

Create wireless access point and share internet connection with nmcli

How can I create a Wi-Fi hotspot with command line tool nmcli and share the ethernet internet connection to the wireless access point? Furthermore how can I start this automatically at boot? Is that ...
7
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2answers
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named does't start when using systemctl

I am having trouble getting named to start using systemd on the Fedora 18 Raspberry Pi spin. It starts, then a few moments later there is a timeout and it fails. If I run the commands in named.service ...
7
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1answer
4k views

How to automatically force fsck disks after crash in `systemd`?

Sorry for bad english. How to set systemd for automatically force fsck disks after crash (hard poweroff)? When I used sysvinit (in Arch Linux) as /sbin/init I used the hack: in the rc.local I create ...
4
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2answers
824 views

Does systemd still know about runlevels?

Does systemd still have the concept of runlevels? For example is it pointless to use telinit <number>?
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2answers
459 views

Where do I put my systemd unit file on Arch Linux?

Sometimes these things can be hard for first-timers. Being a do-it-myself person, I read that there are two folders for unit files (not in user mode). /usr/lib/systemd/system/: units provided by ...
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1answer
112 views

Is that possible for debian users to connect to network through systemd-networkd?

Systemd offers the ability to manage the network by itself without additional tools such as netctl or NetworkManager. I am running debian 8 and i need to configure my network using systemd-networkd ...
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0answers
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Systemd networking: IPv6 networking not available at boot

I've a Debian machine running multiple static IPv4 and IPv6 addresses managed by systemd itself at /etc/systemd/network/10-static-eth0.network as follows: [Match] Name=eth0 [Network] ...
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1answer
1k views

Yocto linux service script problem

I have written a systemd script mqtt.service which is in /home/root directory This is my mqtt.service script : # This file is part of systemd. # # systemd is free software; you can redistribute ...
0
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1answer
35 views

After upgrade to Jessie, service control doesn't return result

Actually not debian, but Raspbian Wheezy to Raspbian Jessie. I upgrade it using some commands which found on Raspbian official forum. cat /etc/debian_version = 8.0. The problem is, I can't view any ...
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2answers
157 views

Adding a systemd .service (Debian)

I'm following this tutorial (https://kezhong.wordpress.com/2011/11/19/creating-my-own-systemd-service-files-on-fedora-16x86_64/) to add a new systemd .service, but it doesn't work, i did step by step ...
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4answers
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What are the pros/cons of Upstart and systemd?

It appears systemd is the hot new init system on the block, same as Upstart was a few years ago. What are the pros/cons for each? Also, how does each compare to other init systems?
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3answers
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Writing basic systemd service files

I am developing a Nodejs application that the user interacts with via HTTP on localhost. There are practically no parameters and the daemon has virtually no dependencies and it just needs to be up by ...
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4answers
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How can I find available network interfaces?

This is in regard to linux, but if anyone knows of a general *nix method that would be good. I booted a system yesterday with an ethernet cable plugged in. "NetworkManager" is not installed, so once ...
10
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2answers
4k views

How to run systemd user service to trigger on sleep (aka. suspend, hibernate)?

Based on various sources I have cobbled together ~/.config/systemd/user/screenlock.service: [Unit] Description=Lock X session Before=sleep.target [Service] Environment=DISPLAY=:0 ...
6
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1answer
470 views

How to start to use httpd with socket activation (systemd)?

The apache httpd server is seldom needed on one of our small servers, so it would be nice to start it via socket activation by systemd (and later stopped it when no traffic occurred for some time). Is ...
14
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1answer
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What makes systemd-nspawn still “unsuitable for secure container setups”?

This is stated in the man page for systemd-nspawn Note that even though these security precautions are taken systemd-nspawn is not suitable for secure container setups. Many of the security ...
11
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4answers
469 views

Is there a standard way to start and stop services on Linux?

Until recently there was a simple and effective way to start/stop/restart services: service nginx start|stop|restart This worked perfectly for so many years,... until some smart-pants decided to ...
11
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1answer
2k views

systemd keeps unmounting a removable drive

I have following line in /etc/fstab: UUID=E0FD-F7F5 /mnt/zeno vfat noauto,utf8,user,rw,uid=1000,gid=1000,fmask=0113,dmask=0002 0 0 The partition is freshly created by gnome-disks under the ...
9
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3answers
4k views

How could we allow non-root users to control a system.d service?

With sysvinit, a sudoers entry like this would suffice: %webteam cms051=/sbin/service httpd * This would allow for commands such as: sudo service httpd status sudo service httpd restart Now, ...
2
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2answers
3k views

No more coredumps after migrating to systemd [duplicate]

Generating coredumps used to work fine, but after switching over to systemd, I only see the message Aborted (core dumped) but no core file is generated. Has it something to do with systemd? ...
12
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3answers
5k views

How does systemd-tmpfiles work?

I'm trying to change the value of /sys/bus/usb/devices/4-3/power/wakeup at every boot (4-3 according to my lsusb, it's the keyboard ID). The default value is: # cat ...
10
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1answer
8k views

suspend AND lock screen on closing lid in arch/systemd

what is the most straightforward way to lock the screen AND suspend when closing the lid? I'm using event hooks in /etc/systemd/logind.conf and successfully suspend upon closing the lid. However I'm ...
9
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3answers
2k views

Run Script once a day with systemd

I want to run a backup script 10 minutes after booting up my machine but only once a day. Is it possible to build up such scenarios with systemd?
6
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2answers
5k views

ERROR: Root device mounted successfully, but /sbin/init does not exist

I've installed Linux Mint and Manjaro Linux on my computer. I installed only the Linux mint on the MBR. For Manjaro, I created a /boot/efi partition, but I have not checked to install to MBR. So, I ...
4
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2answers
1k views

Setting DISPLAY in systemd service file

Im trying to learn systemd services by trying to start xclock as a service, the service file is below [Unit] Description=clock [Service] Environment=DISPLAY=:0 ExecStart=/usr/bin/xclock [Install] ...
3
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0answers
167 views

Why does my user's login cause systemd to use up a CPU?

Recently I asked this question and this one about systemd and a few related processes using 100% CPU just 5 minutes after every boot. I have a quadcore Intel processor, each core has two virtual ...
3
votes
2answers
1k views

Run script every 30 min with systemd

I would like to execute a script every 30 min after booting into the system. I know you can use cron, but I don't plan to use this feature often therefore I'd like to try it with systemd. So far I ...
3
votes
0answers
175 views

Run systemd service after automount but after it's accessed

Is it possible to run a systemd service that prepares an automounted file system for use? This service would need to run after the filesystem is mounted, but before whatever triggered the automount ...
3
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1answer
2k views

systemd - umount device after service which depends on it finishes

I'm trying to implement a mechanism of automated backup using udev rules and systemd. The idea is to launch a backup routine upon hot-plugging a specific storage device, quite similar to this ...
2
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1answer
810 views

What are the default Polkit privileges on Arch Linux for shutdown, halt, etc., and why are they so?

On Arch Linux, with systemd, the following commands are all symlinks to systemctl: /usr/bin/telinit /usr/bin/poweroff /usr/bin/runlevel /usr/bin/reboot /usr/bin/halt /usr/bin/shutdown I find their ...
2
votes
1answer
380 views

Descriptive message services

I have Debian 8 jessie installed on my Laptop, before when I had a Debian 7 wheezy, the system startup and shutdown showing descriptive messages such as these: Now on debian 8 jessie, when I start ...
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0answers
35 views

How to find what thing make a cycle in systemd [duplicate]

when boot with systemd, my system display this message: systemd[1]: Found ordering cycle on basic.target/start systemd[1]: Walked on cycle path to sysinit.target/start systemd[1]: Walked on cycle ...
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3answers
1k views

How to disable useless “audit success” log entries in dmesg

Short version: How to disable audit messages (dmesg) on a Fedora system? A Fedora system keeps logging "audit: success" messages in dmesg - in such an extreme way that dmesg has become unusable ...