a command to turn off or reboot the system

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6
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2answers
4k views

Is halt the same as “shutdown -H” and poweroff the same as “shutdown -P”?

I haven't found a clear answer to the differences between the two options to the command shutdown. Is halt the same as shutdown -H and poweroff the same as shutdown -P?
4
votes
0answers
26 views

How to get system to shutdown when Xorg is quit?

I installed nodm, so that Debian starts Xorg and a window manager immediately after booting, without requesting any password and without a login. How can I similarly setup Debian to shutdown the ...
1
vote
1answer
72 views

what is oldroot?

When I shutdown my laptop there are some messages like unmounting oldroot/* They came after a kernel-update, just curious what this means and if I need "oldroot"
0
votes
2answers
415 views

Arch Linux slow shutdown

I'm soffering from a very slow shutdown/reboot with Arch Linux, so I followed instruction given here to enable logging. So here is the log generated during (slow) reboot that unfortunatelly I can't ...
0
votes
1answer
23 views

How to prevent from automatic reboot after shutdown?

I have a problem with shutting down my systems. When I shutdown my laptop everything looks normal but after few seconds it powers on by itself. I tried to shut it down through terminal with "shutdown ...
0
votes
2answers
31 views

How to create a promptless Linux GUI shutdown script?

I want to shutdown my Linux system using a script from GUI: shutdown.sh #!/bin/bash init 0 This script asks me a question. I need a shutdown script without asking any question. Note that my GUI ...
1
vote
1answer
21 views

Show shutdown messages from last shutdown [duplicate]

Where does Linux store the shutdown messages from last shutdown?
1
vote
0answers
26 views

Triggering a server to shutdown in receiving a signal via serial port (RS232)

I'm a fresh graduate (Electronics & Commn) and want to start my career in linux administration. I'm using a Ubunutu 14.04 server machine for R&D (with ups). Now my scenario is whenever main ...
0
votes
0answers
43 views

Fedora not shutting down

Whether I do shutdown -P now or sudo shutdown --halt now Fedora does not shutdown. It will send SIGTERM and SIGKILL as usual, but then just stops at the screen with the fedora logo. My only option is ...
5
votes
3answers
2k views

Can I allow a non-root user to log in when /etc/nologin exists?

Suppose a non-root user with sudo privileges executes a delayed shutdown (shutdown +10 or whatever) and logs out. Then, before the shutdown occurs, he wants to log back in and cancel the shutdown. The ...
3
votes
1answer
62 views

Find last shutdown time

This is the command I am using: last -x|grep shutdown | head -1 but it's giving me the duration with +2 hours: shutdown system down 3.14-1-amd64 Mon Jul 21 08:43 - 22:19 (13:36) the last ...
2
votes
1answer
69 views

How can I investigate what other users are currently logged in?

Since the last few days I get an error message when I try to shut my laptop down: System policy prevents stopping the system when other users are logged in This error message includes a prompt ...
1
vote
0answers
54 views

How to reboot/shut down gracefully in Awesome WM?

My current configuration uses kdesu shutdown -[rh] now to reboot/shut down. The entire shutdown procedure takes about 1-2 seconds. But after every boot Firefox says it was shut down prematurely, ...
3
votes
0answers
39 views

Output shutdown messages to multiple consoles

I have configured my system to direct console output on boot to serial and vga using kernel parameters. Serial is the last argument in the kernel parameters and will be the default used for ...
11
votes
1answer
492 views

Graceful shutdown in ArchLinux

I'm trying to get a graceful shutdown/reboot in ArchLinux with GNOME Shell. Now, when I ask for shut-down, it immediately shuts down without giving open programs time to gracefully close / save open ...
2
votes
1answer
44 views

RHEL6 Can't make my script run on shutdown and reboot

I'm trying to execute a script in each shutdown and reboot but the script never runs. I created the script baseRhel64 and save it to /etc/rc.d/init.d I did chkconfig --add baseRhel64 I included in ...
2
votes
2answers
3k views

xfce: Allow shutdown for non-root users

How do I allow shutdown for normal users in xfce? Currently, the log-out/restart/shutdown box only allows the log-out option, and having to switch to the console, logging in as root and shutting down ...
3
votes
0answers
200 views

Debian won't shut down completely

My Debian wheezy (64-bit) won't fully shut down. What I mean by this is that when I select "Shut Down..." from the menu the screen goes blank but the power button remains lit and front fan keeps ...
1
vote
1answer
101 views

Debian Wheezy rebooting instead of powering off

I'm having a weird issue with my Debian Wheezy desktop. When I try to shutdown the system (either from Gnome or from the command line with shutdown -h now) the computer automatically reboots. The ...
2
votes
0answers
60 views

Shutdown doesnt work

I've installed dwm window manager on linux mint 15, configured it and now shutdown doesn't work. I typed shutdown -P now in terminal, dwm closed successfully and now I'm seeing black screen with: ...
4
votes
2answers
45 views

Detecting a “plug pulled” scenario with Linux

I was wondering if it's possible to detect a shutdown due to power loss on a Linux system. (Power loss defined as: pressing reset button, pressing power button, pulling the power cord) If so, how? ...
3
votes
3answers
403 views

Upstart: How to run a “stop” before stopping other services?

I recently found out about the upstart "service starter" that Ubuntu is using and that is (apparently) the future to start/stop jobs in Linux. It's pretty new to me (I was used to the old SysV system ...
1
vote
3answers
84 views

How do I shutdown the system after a particular process exits

I am downloading some software; I can see the pid of the download process with top. Let's say it's 1001. How can I make it so that my computer shuts down after process 1001 exits?
0
votes
0answers
40 views

Ubuntu displays Shutdown window then turns off system

Some weeks ago, I've downloaded unetbootin both Windows and Linux versions to make a startup Ubuntu USB. I was going to use it to rescue my damaged Ubuntu partition. Tried the Linux version but didn't ...
2
votes
1answer
613 views

How to change Power button shutdown action

I use Mageia ver 4 Linux as server, without X started and without any user login-in during normal operation. This PC has a special card for measuring and control of other devices. This card has its ...
2
votes
1answer
242 views

Shellscript! Syntax error: unexpected “(”

Update: After the changes from the first answer I got some more error codes. : not found: line 23: { esxidown.sh: line 24: redir error Insufficient arguments. : not found: line 26: esxidown.sh: ...
4
votes
0answers
102 views

Execute code on shutdown on Fedora 19

I need to catch any OS shut down and execute some actions before letting the OS be shutted down. I'm using Fedora 19 and C++. I'm able to catch a shutdown signal given by the console with the ...
2
votes
1answer
68 views

How does `shutdown -k` disable logins?

This is the -k option's documentation in man shutdown (at least on Ubuntu): -k Only send out the warning messages and disable logins, do not actually bring the system down. I initially ...
9
votes
2answers
580 views

How does the system shutdown of a linux kernel work internally?

I have somehow an rough idea of how the userspace and init-system (be it classic init sysV /upstart/ systemd) work at system shutdown. (Essentially there is an order succession of "Stop!", "Please ...
0
votes
1answer
70 views

How can Window Managers shutdown the computer? [duplicate]

When logged in to a virtual shell as an unprivileged user and try to shutdown, reboot, init 0 or init 6 don't work. But if you're running a desktop environment, you can easily select its shutdown ...
1
vote
1answer
365 views

Why is “Asking all remaining processes to terminate” failing during shutdown?

I installed Debian 7. Sometimes when I quick X and type sudo shutdown -h now, it says, Asking all remaining processes to terminate, then after a few seconds, it prints a long list of processes, then ...
6
votes
3answers
1k views

How to shutdown Linux at a specific datetime from terminal?

It seems I can shutdown using sudo shutdown by specifying a time or minutes. Is there a way to specify datetime for shutdown?
0
votes
0answers
15 views

How do I run a command if my server wakes up from hibernate? [duplicate]

How do I get a bash command executed each time when my server wakes up from hibernate? For ex. I want to restart my XBMC on Ubuntu when my PC wakes up with $ sudo killall xbmc.bin -9 Where should ...
2
votes
0answers
429 views

Ubuntu 12.04 / Elementary OS - Shutdown Problem / Logfiles

I have new Desktop PC on which I've installed Elementary OS, based on Ubuntu 12.04 LTS. The problem: the system doesn't shut down as expected: When using the 'Shut Down' option from the main menu, or ...
0
votes
1answer
92 views

Should tmpfs be unmounted at system shutdown?

Assume I have a linux system with the following partitions mounted (beside root): proc on /proc devtmpfs on /dev devpts on /dev/pts tmpfs on /dev/shm sysfs on /sys tmpfs on /var/run tmpfs on ...
2
votes
0answers
107 views

How do I run a script just before halt using LSB headers on Raspbian

I'm building a shutdown button for my Raspberry pi, and for that I have a python script that needs to change a GPIO pin on my Raspberry Pi just before the system runs the halt script. Now Raspbian ...
10
votes
8answers
598 views

How to read the messages during power off

I'm using Lubuntu 11.10. Every time I turn off my Sony Vaio I can read FAIL in red letters. But I can not read. I tried to take a photo, but not success. Well, I was not worrying about this but ...
1
vote
1answer
667 views

Is there a shutdown/restart command for x11VNC? - Linux (Debian)

I am running Linux (Debian). I recently installed the x11VNC server on my computer. I found the command to start the server is: x11vnc -display :0 I have been searching but did not find any ...
0
votes
1answer
191 views

Bring up shutdown menu of Cinnamon via command line

How can I bring up the shutdown menu of Cinnamon via command line? Note: I don't want the user menu. This menu for switching or logging out a user is brought up via Ctrl+Alt+Del.
5
votes
3answers
214 views

Can I make the O/S drive READ ONLY and prevent metadata write back?

Sorry to ask a (probably) stupid question. I am a hardware designer struggling with provision of safe shutdown power to an embedded system. I am aware the Linux normally makes a heavy use of the ...
1
vote
2answers
481 views

An init-script does not get called on shutdown

I have set up an init-script to control the state of a VirtualBox VM: #!/bin/sh #chkconfig: 35 99 5 #description: vTiger virtual machine ### BEGIN INIT INFO # Provides: vtigervm # Required-Start: ...
2
votes
1answer
522 views

How to shutdown the computer from Openbox as a menu item?

How can I add a menu item to Openbox which launches a prompt to cancel or provide a root password, then shuts down X and the computer if the correct password was given? The question Shutting the ...
1
vote
2answers
261 views

How to shutdown the computer from SLiM when root login is disabled?

I installed the SLiM login manager on Debian Wheezy and disabled the root account's ability to login, as described in this Debian Wiki article, so sudo <command> must be used to run anything as ...
5
votes
2answers
750 views

Is it possible to execute a script as first at shutdown/reboot on Debian?

I am currently trying to register a script (located in the /etc/init.d) in a way that makes this script being executed as the first script/programm at shutdown/reboot (change to running level 0 or 6). ...
1
vote
1answer
106 views

Shutdown log Linux UserName

Can I know who issued the shutdown command on any *nix system in a multi-user system? I want to know the name of the user who issued the particular command.
10
votes
5answers
3k views

How to shut down the computer after a task has been completed?

I usually start a download before I go to school. Which command should I use to automatically make the necessary saves and turn off the computer after a particular task has been completed? (Say, ...
-1
votes
2answers
145 views

What happens if I do an improper shutdown of Lubuntu 13.10? [closed]

I have Lubuntu on my 7 year old PC with 512 MB RAM and and Intel Dual Pentium Processor running at 3.00 GHz. I sometimes unplug it from the electrical mains in an emergency. Please tell me if ...
7
votes
1answer
731 views

What's the right way to execute a script before system shutdown (systemd)?

I wrote a script that suspends all my VirtualBox machines, and put a line in /etc/rc.local.shutdown, but it doesn't seem to work, su - XX -c /XX When I'm booting the next time, VirtualBox tells me ...
22
votes
6answers
38k views

How to find out from the logs what caused system shutdown?

E.g. I'm seeing this in /var/log/messages: Mar 01 23:12:34 hostname shutdown: shutting down for system halt Is there a way to find out what caused the shutdown? E.g. was it run from console, or ...
12
votes
3answers
575 views

Why do we need the reboot function in different binaries?

Why do we need the reboot function in different binaries? shutdown -r and reboot Or do they differ in something?