Questions tagged [systemd]
systemd is an alternative approach to SystemV and Upstart init daemons 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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Why does `ip route show` not produce any output in my script from systemd service
Service..
[Unit]
Description=testing
Requires=network-online.target
After=NetworkManager.service
[Service]
SyslogIdentifier=testing
Type=oneshot
ExecStart=test.sh
[Install]
WantedBy=network-online....
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Restrict all already running processes to a range of CPU cores
I've got an AMD 7950X3D CPU which has 32 total logical cores, 16 of which (0-15) have access to extra cache. To optimize my system for gaming while multitasking I want to run Steam and all the ...
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systemd ignores /etc/hostname at startup
Our team works with a custom, barebone linux distro for an embedded device, and it uses systemd.
The system used to rely on SystemV init scripts until stuff got migrated to systemd (including network ...
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How to restart systemd service if it is taking too long to run?
I have a service that runs a slow and buggy one-shot program once a week that may hang sometimes for no apparent reason. I want this service to be restarted if it took longer than 4 hours to run. I ...
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What is parsing/applying /etc/fstab entries
According to manual I thought that systemd-remount-fs.service is responsible for parsing and applying /etc/fstab entries. So I tried to test it: I removed ExecStart part (ExecStart=/lib/systemd/...
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Debian Bookworm, systemd, and how EXT4 quota works?
I have a fresh Debian 12 system and I'm trying to turn on and enforce EXT4 filesystem quota. I read a lot of man and some other sources, for example this one from Red Hat: https://access.redhat.com/...
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How systemd service restart if another systemd service restart?
I have systemd 252 on Debian. I want when the systemd service systemd-hostnamed.service restarts or starts to restart my b.service.
I used with no luck on my b.service the follow options.
After=...
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How to Make a Systemd Private Network Namespace Accessable
So I have an application that only binds to 0.0.0.0 and listens on a port (TCP).
The communication is unencrypted and unauthorized so I'd like to work around that without getting too deep into the ...
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MX Linux systemd Doesn't Login After Installing Nvidia Driver
I've installed Nvidia driver using the provided MX Linux KDE's Nvidia driver installer. Now cannot login to systemd anymore. Sysvinit works but with low resolution.
I did all these but the issue ...
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Systemd service timer not working
I've made a systemd service with a timer that should run the script every hour, but it's not running every hour.
% cat /etc/systemd/system/myservice.service
[Unit]
Description=Run script after network ...
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Running Scripts Before and After Suspend with Systemd
I found this blog article here that explains the process of Running scripts before and after suspend with systemd. Here are the steps:
Create a /usr/lib/systemd/system-sleep/suspend-date.sh script:
#...
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Why am I missing $XDG_RUNTIME_DIR and $DBUS_SESSION_BUS_ADDRESS after logging in via SSH and trying to set up user scope service
I'm trying to set up a user scope service after logging in via SSH, but when I try setting anything up like..
systemctl --user enable wallpaper.timer
I get these errors, even though I'm logged in via ...
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Why did my service become masked?
I've provisioned a bunch of RPis with a systemd service that runs an instance of chromium-browser in kiosk mode, but on a few seemingly random devices it doesn't run. I checked the status just by ...
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systemd path doesn't trigger service (anymore) when file is overwritten by renaming another file
I have a setting in which a systemd.path unit watches a particular file:
[Unit]
Description=Watch config file for changes
[Path]
PathChanged=/path/to/my/config.file
[Install]
WantedBy=multi-user....
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Systemd: provide password noninteractively to homectl
I would like to activate a systemd-homed home via ansible, how can I provide the password to the systemd password agent programmatically?
It seems that I cannot simply pipe the password to homectl ...
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How to view the systemd-xdg-autostart-generator generated files?
I ran the following command:
$ systemctl --user list-dependencies xdg-desktop-autostart.target
xdg-desktop-autostart.target
○ ├─app-geoclue\x2ddemo\x2dag[email protected]
○ ├─app-gnome\x2dinitial\...
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How to remove DNS options from systemd-resolve
I'm unsure how to change the list of DNS options that resolvconf finds when connecting. systemd-resolve --status outputs
Global
Protocols: -LLMNR -mDNS +DNSOverTLS DNSSEC=no/unsupported
...
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Run gpg from systemd script
I wrote a wrapper for rsync. It connects to my host and makes a backup of my $HOME directory via ssh. I use gpg-agent for the ssh verification. My script works when called from a terminal emulator. It ...
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How to use systemd WatchDog to allow alive pings from a child process?
I've configured a bash script that pipes multiple processes to run as a service. This works fine but I now want to use WatchdogSec to monitor if the state is still ok and if not to restart all child ...
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Restart SystemD service when Memory Usage in More than 100MB
My nemo-desktop freeze my whole system due to a bug.
The file in ~/.config/autostart which autostart the service is:
tee ~/.local/share/systemd/user/nemo-desktop-bug-workaround.service << END
[...
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What are systemd *.device units actually waiting for?
I've got a system that get's stuck when systemd tries to mount a filesystem. It fails on a dependency times out. The dependency is dev-disk-by\x2dlabel-cb\x2drootfs.device where the device being ...
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Reorder of launching Systemd services
OS: Debian 11 Bullseye
Context:
The Zerotier application adds the zerotier-one.service system service and creates a virtual network interface (when it works).
The sshd server default listens to all ...
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Why can't I enable systemd services created with podman generate?
Given this setup:
---
version "3"
services:
wireguard:
image: "lscr.io/linuxserver/wireguard"
container_name: "wireguard"
cap_add:
- "NET_ADMIN&...
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Howto change linux hostname on mounted (copied) drive
I have copied my headless Ubuntu 22LTS server to a backup drive with dd, and I want to deploy it as a backup server with the same relevant settings.
What is the proper way to change the hostname on ...
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How to add a static IP address to a network interface using systemd.networkd, if the filesystem is read-only?
I have a situation where I'd like to add a static IP address to one of the network devices on an embedded Linux machine, via systemd.networkd.
Normally I'd do that by creating a file like /etc/systemd/...
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Unable to create user with systemd-homed
I am trying to create a new user with systemd-homed, but I receive an error
# homectl create jjcasmar
Please enter new password for user jjcasmar: *
Please enter new password for user ...
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Running a systemd service at boot with ALSA
I am trying to launch a python systemd service that uses ALSA sound when the Raspberry Pi boots.
Here is the Talkie.service file in /etc/systemd/system:
Description=My Talkie App
After=network.target ...
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systemd keeps restarting my daemon
I'm planning to use raspberry as USB tunnel through WiFi/Ethernet, so I wrote scripts to automate binding in udev, compiled and inserted kernel modules, and now I'm stuck with the daemon.
My previous ...
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Bluez way to tell if connected device has BT Classic, BLE or both
Is there a programmatic way to tell which transport layer (BD/BLE/Both) is used to connect to dev? I use sd_bus lib with C++ to handle DBus calls and signals.
Thanks!
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systemd: lightdm.service: Main process exited, code=exited, status=1/FAILURE / How to log whats happening in a early stage of the booting process
I've upgraded Ubuntu 18.04 to 20.04 on my ARM (32 bit armhf) Chromebook. While Ubuntu 18.04 works perfectly,Ubuntu 20.04 has some kind of problem. I think that during the upgrade something broken.
At ...
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How can I get colored output of `systemd` commands run with `watch` inside xterm?
Somehow I'm unable to get this working with color output, it works but no colors are shown.
I'm currently using these alias'es in my bash shell:
alias Xterm='xterm -geometry 132x60 +dc +cm -e '
alias ...
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Script not working fully under systemd
I have a python script to switch light/dark mode.
At the end there's this line:
process = subprocess.Popen(binDir + "/polybar.sh")
That script it points to is this:
#!/bin/env bash
# ...
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Running "mount -a" command shows "mount: mount point tmpfs does not exist"
I Physically Replaced a disk from my server running on RHEL 8.
Before Replacing:
I unmounted disk by umount /dev/sdf (Successful unmount from mount point /data/5)
I then replaced the HDD.
After ...
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Unable to determine the session we are in
I am currently running GarudaLinux(ArchLinux) , with Wayland and Hyprland as WM.
Somewhere while disabling my GPUs adding Virtualization I lost my polkit configuration, and I am no longer able to run ...
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How to update programs compiled from source (from Github)?
I'm using Debian 12. I recently followed this guide (https://stopanddecrypt.medium.com/running-bitcoin-lightning-nodes-over-the-tor-network-2021-edition-489180297d5#13c5) to install some software, and ...
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Mounting OverlayFS in fstab at startup
Is It possible to Mount OverlayFS from external partition in fstab and benefit from systemd services extensions at startup ? Thus overlay directory tree will add new systemd services configuration ...
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How do I request a user input with GUI from script running as root by modern initialization system?
I have Systemd service of type "oneshot" to be launched by Udev upon a device insertion. Service is launching shell script as root. The script needs user input in order to do it's job as ...
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What is systemd -.slice?
I see this in the output of systemd-analyze critical-chain.
The example output in systemd-analyze(1) includes it, but fails to explain it.
Example 3. systemd-analyze critical-chain
$...
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Limiting process memory usage with systemd-run not working as expected
I'm trying to limit the memory usage of Chrome with systemd-run by starting it with:
systemd-run --scope \
-p MemoryMax=16G \
-p MemoryHigh=15G \
-p CPUWeight=70 \
-p StartupCPUWeight=100 \
/...
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How do I change mac before network service starts
I have a systemd service that change mac address to wifi adapter every boot. Systemd service works fine. I want the service not wait 1m 30sec when the wifi adapter is not plug in the usb.
systemd ...
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systemd-journald.service fails to load during boot
I've accidentally unplugged my NAS and after plugging back it fails to boot because of the following error:
[ 105.556720] systemd[1]: systemd-timesyncd.service: Main process exited, code=killed, ...
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How to preset service instances with systemd
I am packaging an instanced service@ as an RPM. The package should automatically enable the preset instances that the local admin has already prescribed with a .preset file. What is the "...
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MySQL ignore LD_PRELOAD
I trying to use jemalloc with MySQL. I found that I should add enviroment variable LD_PRELOAD to SystemD unit and thats all.
But lsof /usr/lib/x86_64-linux-gnu/libjemalloc.so.2 shows nothing. I also ...
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Frequent unexpected termination of .NET processes after office relocation
We moved our workplace last month, and we've been encountering frequent instances of the .NET process being terminated. I'm not sure why this is happening, but I'm confident that the program itself is ...
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Forcing Systemd to Re-Isolate a Target Unit
My goal is to programmatically re-run the graphical target unit using the systemctl command. While I'm aware that I can use sudo systemctl isolate graphical.target, this approach doesn't seem to work ...
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How to avoid systemd periodic realtime timer running at boot
I have a realtime timer with Persistent=false running immediately after boot although my objective is to run it periodically!
I saw it is a rather common question but none of the answers I found in ...
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How to reduce time to wait systemd service?
I have a systemd service that change mac address every boot to wifi adapter. Systemd service works fine. I want the service not wait 1m 30sec when the wifi adapter is not plug in the usb.
How can I do ...
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How to control HOST systemd service inside pid namespace
Note: this is not about to run systemd inside namespace/container
I need to control some service, from inside a namespace/container, but systemctl returns "Failed to connect to bus: No data ...
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Does adding a "ENV{SYSTEMD_WANTS}+="your.service" to udev rules guarantee that the service will wait for the device?
Consider the following example.
I have a service console-scaling.service, which adjusts console fonts on startup and requires /dev/fb0 device. Therefore, I have added an udev rule:
KERNEL=="fb0&...
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NodeJs and systemd on raspbian error, MODULE_NOT_FOUND / Module._resolveFilename
Hej!
I have a node script that I can run from anywhere on the system with
/usr/bin/node /home/admin/git-repos/MMMMobileAlerts/maserver/mobilealerts.js
Afer that I also added the x bit with
sudo ...
