a command to turn off or reboot the system

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2
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1answer
365 views

Why won't this shutdown script work when executed by ACPID?

Based on this thread I modified my /etc/acpi/powerbtn.sh script to account for LXDE sessions: # getXuser gets the X user belonging to the display in $displaynum. # If you want the foreground X user, ...
1
vote
0answers
356 views

PC sudden shutdown, Sensors show normal temps, Thermal event interrupts shows 1276

I'm experiencing sudden shutdowns on my Linux systems. Using Ubuntu 12.04, my kernel version is 3.5.0-37-generic #58~precise1-Ubuntu. Running a Acer M5 581t(G) with 6 gigs ram laptop. I have been ...
1
vote
3answers
99 views

Is there any way to disable shutdowning remote machine?

I sometimes mistakenly shutdown the remote machine by using sudo init 0, so I wrote something like in one of my rc files: alias sudo='sudo ' if [ $SSH_CLIENT ]; then alias init 'echo Never use init ...
3
votes
1answer
577 views

Poweroff or Reboot as normal User

To run the command poweroff or reboot one needs to be super user. Is there anyway I can run this as a normal user? I just don't want to sudo and enter my password every time I reboot or power off.
0
votes
1answer
569 views

My laptop shuts down every time I unplug it

I am using a Lenovo G580 with Linux Mint 14 updated. My laptop shuts off every time I unplug it as if there is no battery even when I am using the BIOS. But, It detects the battery as "84% charging" ...
1
vote
0answers
231 views

I get this shutdown prompt, then my laptop dies. What is happening?

I get a dialog box that says 'Shut down the system now', the same as if I had clicked 'quit' in the main menu. This happens seemingly randomly. If I choose 'cancel', it sometimes goes away. Other ...
3
votes
1answer
168 views

Rolling your own init: How to shutdown/restart?

After reading this answer, I thought it would be funny to roll my own init on Python, so I wrote this in /init-python. #!/usr/bin/python3 import os import subprocess # Make / writable! ...
1
vote
2answers
515 views

Warn users that the system is going down for a reboot

I'm new to linux server administration, and I wonder how you would warn users that the system is going down for a restart. According to LPIC1 Training here: ...
5
votes
2answers
527 views

How can I ensure only the root user have the right to halt/reboot the system?

CentOS Linux by default allows all users to have permission to "halt" & "reboot" the system by using the commands halt and reboot. How can I configure my system so that only the root user has the ...
3
votes
3answers
293 views

To recover my system so it shut down normally?

I have Linux mint 13(ubuntu 12.04) installed on my thinkpad T520, running for around 1 year. I'm not able to shut down my machine even if I do: sudo shutdown now. At first, it halts after messages of ...
1
vote
0answers
387 views

Why does my server not shutdown properly?

When I run $ reboot on my embedded FreeNAS 0.7 (FreeBSD 7.2) it does start the shut down procedure but seemingly hangs. I have registered a command to start a service script which is executed on ...
2
votes
2answers
557 views

How to disable wlan0 when shutdown

Since a long time ago my Sony Vaio with Lubuntu 11.10 is showing a red FAIL message during the shutdown process. It tries to kill some process and the white messages on the screen frozen for some ...
11
votes
1answer
1k views

What happens when I press “Shut Down” from the GUI?

I have been banging my head against this for quite a while now. It's related to this question. I would like to find out exactly what happens when I choose to shut down my Linux box from the GUI. This ...
1
vote
1answer
1k views

Xfce: Upgrade from Squeeze to Wheezy broke xfce's user policies

While using Debian squeeze, I was able to allow a user shutdown in xfce by adding users to the powerdev group (see here: xfce: Allow shutdown for non-root users). Now, I upgraded my system to Debian ...
5
votes
1answer
184 views

Automatic shutdown after startup

I'm a new newbie Linux Mint user but I have a lot of desire to learn. I played a little with the shutdown command typing: sudo shutdown +20 and then: sudo shutdown -c I then manually hibernate ...
2
votes
0answers
272 views

Fedora 18 doesn't shutdown , restart or sleep / can not unmount all file systems

When I do something (whatever) that results in a shut down, restart or sleep (for example usual shut down or restart, closing the lid, etc.), fedora 18 (x86_64 , GNOME desktop) comes up with an error ...
3
votes
1answer
199 views

Shutting the computer down from Openbox

I've recently installed Openbox,and read a guide that said the PC should be shut down via this command: gdm-control --shutdown && openbox --exit However, it seems a bit counter intuitive. ...
1
vote
2answers
1k views

How to simulate unplugged network cable or down server?

I have simulated network latency with netem and It's great. Now I want to simulate unplugged network cable or when server goes down. I need this to make testing of my application easier and I couldn't ...
2
votes
1answer
137 views

Diagnose unplanned shutdowns

I have a problem with a server that is shutting down for some unknown reason. I check the logs each time it happens and cannot find anything of particular interest which would suggest why its going ...
14
votes
1answer
1k views

How to prevent shutdown when an SSH user is logged in?

I'm administrating a networked environment and I had an interesting situation arise yesterday. When a host is required to shutdown by a regular user, it refuses to do so if other users are logged in ...
31
votes
4answers
28k views

What is the difference between reboot , init 6 and shutdown -r now?

I just want to know difference between in reboot init 6 shutdown -r now and which is the safest and the best?
2
votes
1answer
243 views

Why was -F removed from /sbin/shutdown?

I used to be able to run /sbin/shutdown -r -F now but in recent Ubuntu and Fedora releases there is no -F option and if I want to force an fsck I need to do touch /forcefsck; /sbin/shutdown -r now. ...
2
votes
1answer
112 views

How can I setup a system immune to abrupt poweroffs?

I have a system that boots from a solid state disk. How can I make it immune to improper shutdowns? I can also switch to a distribution having this feature. I can choose between Ubuntu, Redhat, and ...
2
votes
3answers
562 views

Ensure that loopback root and host are unmounted on shutdown

I'm trying to setup a Linux system that runs from an LVM-formatted image file. After some tinkering with the initramfs and boot options I managed to make it up and running by mounting the host file ...
7
votes
1answer
714 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 ...
3
votes
2answers
809 views

Is running “sudo sync” and removing power dangerous for my system?

I run an Ubuntu system, and it sometimes takes a while to shut down. Apparently, GNU/Linux attempts to, in a nutshell, stop all running processes, flush the filesystem journal, and then cut off the ...
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 ...
2
votes
1answer
176 views

write pc uptime in a file in shutdown

I need to log PC uptime. How I can do this? I use uptime for this and I will when ubuntu is shutdown write this command output in a file.
3
votes
1answer
331 views

Have Sun keyboard moon key (116) not shut down my computer

On my Sun keyboard, the top-rightmost key (with a moon image, right above the keypad) shuts down my computer. I'd like it not to, as I hit it by mistake now and then. In /etc/default/keyboard, I only ...
11
votes
3answers
613 views

Eject CD on shutdown

OK, so I have a simple problem: I have a live CD, and I want the CD to eject when the computer is rebooted or halted. Executing /usr/bin/eject -m makes the CD eject just fine... trouble is, as you ...
10
votes
8answers
559 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 ...
4
votes
1answer
631 views

Using a APC Smart-UPS to shutdown a Ubuntu Server Cluster

I'm currently in the process of designing a solution to shutdown a two Ubuntu Server cluster that uses heartbeat and DRBD to replicate storage and offer a NFS share to some IP cameras. We want to ...
15
votes
2answers
9k views

Execute a command before shutdown

I want to execute a simple command just before the computer shuts down (timing is not essential). For startup I can use /etc/rc.local - is there something similar for shutdown? Note that I would ...
1
vote
2answers
705 views

My computer won't shut off normally

Every time I try to shut down my iMac it just stays on that loading circle forever. The only way I can get it to shut down is by holding down the power button. I checked the system logs (below) and I ...
0
votes
0answers
188 views

A Reboot() command with failover

I'm implementing a Reboot() call in my application. It's an embedded application, so no console, keyboard or power switch. The Reboot() must eventually restart the system no matter what. Ideally, I ...
3
votes
3answers
389 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 ...
6
votes
1answer
229 views

How do DE's call ACPI functions?

Okay, first off, this is not a problem I am facing, but I would like to understand this better. If I wish to shutdown / reboot my machine from the command line I need to call: $ sudo poweroff $ sudo ...
7
votes
3answers
2k views

Shutdown from login prompt in tty

Suppose I boot a Linux machine without GUI. When it displays a tty login prompt, can I shutdown the machine with a keyboard sequence? Of course I could type in my username and password and then sudo ...
3
votes
1answer
773 views

How to check will my computer is going to reboot(or shutting down)?

When I send a reboot command(or shutdown) command to a Linux machine does it keeps that messages at somewhere and can I query it. I.e. I will send a reboot command and after that I will run another ...
4
votes
2answers
834 views

Gnome: how to close all applications?

I've configured the Debian system on my netbook to shut down whenever the battery runs too low. Problem is, shutting down kills all running applications without giving them any chance to save any ...
6
votes
2answers
4k views

Halt and poweroff options for shutdown command

I have googled for a while, but I still haven't found a clear answer to the differences between halt and poweroff options for shutdown. So I would like to ask this question here. If it helps, my ...
10
votes
4answers
478 views

How do I shutdown, reboot and logout the system from the command-line?

I would like to do that using the command-line, because sometimes my computer freezes and I need to force a shutdown (I know it's not good to the hardware). And: What is the difference between Halt ...
2
votes
1answer
528 views

What are the commands to logout and shutdown with a session manager?

I decided to write my own DE using these instructions here it worked and I can login however I didn't use a panel so I don't have a logout button or a session manager. I've decided to write my own ...
4
votes
3answers
1k views

Can it harm if I shutdown without closing applications?

Can it hurt if I shut down my machine without closing all programs? I normally close all of them by hand, but have heard from others that this is really not necessary anymore (i.e. Linux will take ...
2
votes
1answer
1k views

Message after sudden shutdown

After the computer shuts down suddenly unexpectedly without notification, is there a way to know the reason (read messages) the next time when I boot? My computer frequently shuts down, and I don't ...
8
votes
3answers
5k 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] ...
2
votes
2answers
130 views

debian dead when copy over 1GB

I have a Debian Squeeze system with an AMD64 processor. When I try copy over 1 GB, the computer dies (no reboot, completely down), and the logs don't contain anything useful. The temperature of the ...
1
vote
1answer
3k views

Linux Mint does not shut down

Sometimes (very rarely actually) I have a problem that when I try to shut down my desktop, it will freeze with the following screen and I can only shut it down by pressing the power button for 8 ...
4
votes
2answers
497 views

List of script( location)s that get run automatically, and when?

Does anybody know (of a resource listing) what scripts are run automatically, and when, from the moment I startup the computer until it's shutdown again. I know several places where I can add scripts ...
3
votes
1answer
1k views

How to disable shutdown so that an important process cannot be interrupted?

What is the simplest way to disable or temporarily suspend reboot/shutdown when an important process is running? The process takes too long to finish and cannot be paused/resumed so I like to avoid ...