Questions tagged [runlevel]
A run level is the operating state of the operating system. Run levels can be: "halt", "single user mode", "multi-user mode", "reboot", "graphical user interface mode/display manger" and others. Each run level starts or kills a set of processes and is denoted by a number typically from 0 to 6. Different operating systems may define different run levels.
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Temporary failure in name resolution in Python script running during boot or on shutdown
I wrote a Python script which sends any message via Telegram:
#!/opt/anaconda3/bin/python
import asyncio
import telegram
import os
import sys
async def main():
bot = telegram.Bot(os.environ["...
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systemd service
I'm wondering how services launched by means of systemd working.
When system was running by means of System V init, there was scripts under runlevels (/etc/rc"level".d/) which described ...
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Delete jobs from at queue on startup
I'm on Ubuntu 18.04.6 LTS and I have a cronjob that schedules automatic shutdown commands to a specific at queue every minute:
$ crontab -e
*/1 * * * * [ -z "$(w -h)" ] && echo "...
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Reboot does not send "stop" to init.d scripts
I have a script that I want to execute before a machine is either shut down or rebooted but it's only triggered with the start parameter, never with the stop parameter and it's driving me crazy.
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Are RC folders obsolete on Ubuntu?
I am learning Linux, using Ubuntu. I wanted to remove network management from one of the run levels. I had done this correctly before, but now, no matter how hard I try, I can not remove a script from ...
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How do I recover from Debian 10 crash after running apt --fix-broken install?
Debian 10 crashed after running apt --fix-broken install. This is the second time this has happened. The only extras that I have installed is the proprietary Nvidia driver V=460. I have also installed ...
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Runlevel of choice. GRUB, ubuntu
I'm quite new to linux, and have a few questions regarding my assignment.
I must give a choice to the user in GRUB, to use either 3rd or 4th runlevel. May i ask for any materials and/or tips on that?
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Debian does not start with a graphical interface
I'm using Debian Buster and it starts in text mode so that for me to run the graphical interface I always have to run # startx on the command line. How do I start it directly in graphical mode?
I saw ...
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Convert SysV init run level S to Systemd *.target (Debian)
I am converting a SysV init style file to Systemd Unit file and it's init section block looks like this:
### BEGIN INIT INFO
# Provides: ifcheck
# Required-Start: $local_fs
# Required-...
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What was runlevel 4 used for with SysV init?
I'm reading about SysV init and I see there are levels 0-6.
I understand that level 4 could be defined by the OS operator for special purposes, but I'm having trouble thinking of any examples.
Has ...
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runlevel + what is runlevel 5 3 in redhat linux
we know that runlevl of multi user mode is
N 5
but on our redhat 7.2 we get the following
runlevel
5 3
what is the meaning of this run-level ?
how to change this machine to multi user mode ( full ...
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When should a systemd unit file use sysinit.target vs multi-user.target?
When should a systemd unit file use WantedBy=sysinit.target vs WantedBy=multi-user.target?
Does WantedBy=sysinit.target have something to do with grub boot menu boot into recovery mode?
Units listed ...
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Ubuntu 18.04 startup questions regarding runlevels and *.wants directories
Is Ubuntu 18.04 using Upstart or systemd?
I know with the directories named Rc0.d Rc1.d Rc2.d ......Rc6.d. we can control runlevels in Ubuntu 18.04. But what is the difference between what they do, ...
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Can same level runlevel scripts have the same priority?
Can same level runlevel scripts have the same priority?
For instance, can say runlevel x have these 2 scripts: S10ScriptName1 and S10ScriptName2 ? If so, what is the execution order?
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Unable to change from graphical target to other systemd targets in Ubuntu
I am currently a newer user of terminal in Ubuntu. I was trying to demonstrate some features of targets in systemd. Each time that I do systemctl enable or systemctl isolate , I enter my credentials, ...
