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 do I view systemd logs from before a journal corruption?

I had a server issue today where CPU was pegged at 100%. I had to hard-reset the server in order to bring it back up, and now I'm trying to determine the cause of the high load. Unfortunately ...
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Can I use a symbolic link as a service of systemd?

For instance, I have a service named mysshd.service under /usr/lib/systemd/system/ directory. Can I create a symbolic link such as: ln -s /usr/lib/systemd/system/mysshd.service ...
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CoreOS can't pull docker container on boot

While following the systemd guide I ran into an issue with this example configuration: [Unit] Description=MyApp After=docker.service Requires=docker.service [Service] TimeoutStartSec=0 ...
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SIGKILLing after a grace period

I've seen a lot of process managers that try to do this. It was my understanding that you should only use SIGTERM to kill a process. The process could take an unknown amount of time to clean up after ...
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What are the practical implications, if any, of using software which processes are not the descendants of the window manager?

I've set up Openbox on bare X with the slim login manager, all on a systemd init (on Gentoo). I'm using two different terminal emulators on the desktop so as to be able to create different behaviors ...
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Why is a service being started if it isn't mentioned in /etc/init.d?

After a clean install of Fedora 17 and distcc-server, I did a service distccd start, which completed successfully. man service indicates that it would merely be running the distccd script at ...
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Writing a systemd unit file with a environment-set executable path

I am writing a systemd unit file for a Java application and I'd like to control the version of Java used to start it up. My (simplified) service file is [Service] Type=simple ...
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With systemd-networkd, perform an action upon network configuration change

I am switching from Debian’s ifupdown to systemd-networkd, and it mostly works fine. One missing bit is that upon every network change, I want to call killall -ARLM tinc, so that my VPN is going up in ...
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service command does not work in centos 7

I used to use service command for restarting, reloading, and checking status of service on centos 6.5 like below: $ sudo service nginx restart OK $ sudo service nginx status ...
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How can I start Apache on Arch Linux w/systemd using passphrase protected SSL keys?

I'm relatively new to using Arch Linux and think I must be missing the obvious way to do this correctly, but –short of starting the daemon on my own– I can't figure out how to get passphrase protected ...
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How to implement logwatch functionality on top of systemd journal?

Logwatch scans logfiles with regular intervals, collects errors and stuff, then mails it to the admin. This was back in syslog and logfiles days. What's the corresponding solution for systemd's ...
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Where is my /etc/init.d/skeleton on OpenSuse 12.3?

On a fresh install of OpenSuse 12.3, I want to "daemonize" a program. And, on all examples found on Internet, I see I have to create first a /etc/init.d/myscript based on the /etc/init.d/skeleton... ...
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journalctl process eating up memory

I have a process run by root journalctl -b --system showing up on htop that is eating a ton of CPU. I understand journalctl is for querying the journal, so is it safe to kill the job without impact on ...
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950 views

How to permanently disable root-password prompt for recovery mode, RHEL7

Note: I asked a similar quesiton concerning version 6 of these bundles here. Note that 7 uses systemd and may have a different implementation In the rare cases that a RHEL or CentOS 7 system is ...
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Managing another user's systemd units

Can one user, or maybe root, control another user's user level systemd services? I've tried sudo -u <some user> systemctl --user restart <some service>, but it complains about dbus: ...
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973 views

Inherit environment variables in systemd Docker container

I have a Docker container running systemd. I want to pass environment variables to applications under it. When I start systemd from within Docker (/sbin/init as command line), Docker exposes ...
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275 views

How do I start service in systemd right after cryptsetup?

I have an ArchLinux installation with systemd. I am trying to run a hook immediately after my encrypted data device is mounted in order to put flashcache on top of it. I have scripts that work, ...
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Enable systemd-baclight@intel_backlight instead of systemd-backlight@acpi_video0

I have 2 files in /sys/class/backlight/ - acpi_video0 and intel_backlight. intel_backlight is the one which controls my screen brightness (echo/cat), however acpi_video0 is the default. By default ...
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systemd: permission issue with mkdir & ExecStartPre

I've got a problem with this (shortened) systemd service file: [Unit] Description=control FOO daemon After=syslog.target network.target [Service] Type=forking User=FOOd Group=FOO ...
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Why does bash parameter expansion not work inside systemd service files?

I am trying to use systemd's EnvironmentFile and add an option to the command when it is set in the file. I have the following in the unit file: ExecStart=/usr/bin/bash -c "echo ${PORT:+port is ...
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How to disable X server autostart in Debian Jessie?

I have a remote machine running Debian 8 (Jessie) with lightdm installed. I want it to start in no-GUI mode, but I don't want to remove all X-related stuff to still be able to run it though SSH with ...
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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 ...
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635 views

Systemd postgresql start script

I'm in the process of installing postgresql onto a second server Previously I installed postgresql and then used the supplied script ./contrib/start-scripts/linux Placed into the correct dir # cp ...
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generic methodology to debug ordering cycles in systemd

I am aware of following thread and supposedly an answer to it. Except an answer is not an answer in generic sense. It tells what the problem was in one particular case, but not in general. My ...
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When saving INTO OUTFILE from mysql on a systemd based system, the output file is grabbed by systemd — why?

I regularly run simple reports from a mysql (actually, mariaDB) database: MariaDB [acts]> SELECT resolution, title FROM acts ORDER BY resolution INTO OUTFILE '/tmp/acts-titles.txt'; Recently I ...
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608 views

Why is my systemd journal not persistent across reboots?

I'm experiencing a very weird issue with a fresh Fedora 21 image on a Linode instance. I cannot reproduce it outside of Linode. The issue is that my systemd journal is not persistent across reboots. ...
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How does _netdev mount option in /etc/fstab work?

I'd like to know what is the exact mechanism (implementation) used to defer mounting until after network interface is up when one uses _netdev option in /etc/fstab? Does systemd alter this behavior? ...
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How to disable systemd's “Time has been changed” message spam in /var/log/syslog on Debian jessie?

Due to combined use of Debian jessie, that uses systemd by default, and sdwdate (that uses Slow Clock Adjuster ( gh )), my system clock is frequently changed. As a result /var/log/syslog gets ...
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Log every command typed in any shell: output (from logger function to syslog-ng/journald) contains duplicate entries for commands?

I installed syslog-ng to use on my desktop (Gentoo 64bit, upgraded to systemd i.e. was OpenRC before, with Openbox and Slim only) with my normal user to log all commands I type in the shell (bash ...
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1answer
904 views

Output of a python script running as unit is out of order while shells seems unnafected

How would I get all outputs of systemd managed python2 script instantly into journal, just like it appears in terminal I'm on centos 7, but seems to be same on arch according to systemd manual, ...
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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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Why do I have to restart NetworkManager.service all the time?

After switching to systemd, I started to use NetworkManager.service, I got connected to WIFI automatically at boot, but I got the following message when I run nmcli con: ** (process:4433): WARNING ...
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What is the proper way to unlock a root filesystem spanning two LUKS devices by only entering the password once, using systemd?

I have been having a lot of issues getting an encrypted multi-disk root filesystem to boot up reliably under systemd on Debian Jessie while only having to enter the password once. Previously I've ...
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Where is the `$TERM` environmental variable set in Debian Jessie for console logins?

I have read a lot of articles and SE questions regarding how and where the default $TERM environmental variable gets set. Unfortunately in Debian 8.1 I can't seem to find where the default $TERM ...
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263 views

Can socat be started directly by systemd?

The following socat command-line works as expected when entered at a shell prompt: # /usr/bin/socat UDP-RECV:4321 STDOUT It listens on UDP port 4321 and writes everything received to standard ...
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How to delete (not disable/mask) a unit in Systemd?

Sometimes I make a new unit in mistake, and then I have to go to /etc/systemd to look for the unit and delete all of its associated files/scripts/links/etc. Is there a better way? Like a single ...
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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] ...
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systemd service that needs .ssh/id_dsa password

I have a systemctl service that starts a process smd-loop in a screen session. This process requires acces to remote SSH sources (for syncing purposes) and thus needs to be able to access my id_dsa ...
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179 views

what tools to investigate failure to suspend on laptop lid close?

My laptop sometimes suspends when the lid is closed, and sometimes doesn't. Here's some output from journalctl, which shows the suspend triggering maybe one in five or six times -- Logs begin at Sat ...
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How can I enable wpa_supplicant on boot?

I'm trying to enable wpa_supplicant on boot in Fedora 20. I created /etc/wpa_supplicant/wpa_supplicant.conf and am able to connect to my wireless network manually by running wpa_supplicant -B -i ...
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Why does my systemd unit fail to run on server reboot?

I'm having troubles getting a systemd service unit file to run correctly when the server reboots. This server is a fresh CentOS 7.0.1406 install. I'm trying to set it up with multiple Apache httpd ...
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Wildcard automounts with systemd

I’m running jessie/sid with systemd 208 and try to convert the following wildcard autofs configuration to either an /etc/fstab or .mount/.automount definition. $ cat /etc/auto.master /home/* ...
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How can I stop an amok running process from logging to systemd?

There's a process on my system called demond which logs around 100 entries to the systemd journal every 15 seconds: Okt 11 04:58:42 scarecrow demond[1692]: [P:1692 T:108160832] src/discovery.c : 158 ...
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How do you disable a service in systemd?

I know what the command is sytemctl disable NAME but I have a question about the NAME parameter. For example the bluetooth service[1] on Fedora 21. For the NAME parameter should you put bluetooth or ...
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After switching to Devuan, how do I remove systemd?

So, I've also switched from Debian to the Devuan pseudo-fork. But - this doesn't get rid of systemd... I've followed the instructions here, and did: # apt-get install sysvinit-core sysvinit ...
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Watchdog daemon doesn't start at boot

I'm using a Raspberry Pi B, with Raspbian. After upgrading to Jessie, watchdog daemon doesn't start at boot anymore. Starting it manually using "sudo service watchdog start" does work. I tried: ...
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Can a systemd dependency be applied only to a unit's “ExecStart” action?

I have a scenario where a number of storage volumes are encrypted using keys contained on a removable encrypted USB "keyring" flash drive. I am running Arch Linux and this question is about systemd ...
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How to add a dependency to a systemd.mount that is activated by /bin/mount?

I want systemd on mount /mnt/test to automatically call a program (in real life cryptsetup to unlock the underlying device, for testing here echo) before the file system is mounted and after it is ...
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command not running in cron (systemctl suspend)

I have this cronjob set : * * * * * /usr/bin/systemctl suspend And it is not working. But I can run it in a shell and it works. I don't understand what could be not working. EDIT Redirecting error ...
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MySQL server-id not being set with Fedora 16

I am setting up a mysql slave on a Fedora 16 system, and the server_id is not being set properly. My /etc/my.cnf is: [mysqld] server-id=16 datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock ...