a command to turn off or reboot the system

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1answer
19 views

KDE: Leave --> Turn Off Computer not shutting down system

I recently decided to install Debian 8 with the KDE desktop environment. A problem I have been having is shutting down the computer. The computer always restarts even when I tell it to shut down. I ...
22
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3answers
2k views

What is the difference between these commands for bringing down a Linux server?

Reading "What is the difference between Halt and Shutdown commands?" , I generally have an idea what does the command shutdown does, with or without -h/-r options. The "halt" command performs ...
1
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0answers
55 views

Linux Mint 17.1 shutdown option doesn't work

Sometimes when I use the shutdown option in cinnamon the system closes some of the running programs and then just sits on the desktop until I tell it to shutdown again. The shutdown and poweroff ...
5
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1answer
169 views

what does mount -o remount,ro / actually do (under the hood)

To remount a mounted filesystem to read-only, I can use following command: mount -o remount,ro /foo This is used for example in the shutdown sequence, where root filesystem (/) is remounted ...
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1answer
22 views

How to setup boot scripts to save orphan inodes after improper shutdown?

after abnormal shutdown in dmesg I have [ 16.107445] EXT4-fs (dm-1): INFO: recovery required on readonly filesystem [ 16.107450] EXT4-fs (dm-1): write access will be enabled during recovery [ ...
0
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1answer
37 views

How to shutdown Linux parted magic from terminal?

Once in a while I have to use parted magic to restore superblocks. I tried to execute in the terminal: shutdown -h now telinit 0 Both did not work, what else might be possible to shutdown Linux via ...
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0answers
69 views

Suspend option disappear from shutdown dialog on Mint 17.1 Cinnamon

Previously I have a "Suspend" option when I open shutdown dialog, not sure why (probably because I did a apt-get upgrade I found the "suspend" option has gone: Another thing is even I set my power ...
3
votes
1answer
57 views

How to poweroff headless machine using a script

I have a Java application that starts automatically when the headless machine (Ubuntu 14.04 Server) boots and runs as a user. When the application is finished I need it to execute a script to ...
2
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1answer
48 views

How to protect against purge of bash history?

Following the answer: When closing multiple bash instances at the same time, there is a known race condition that may cause the history to be cleared. This occurs because there is no locking ...
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0answers
50 views

Why doesn't Linux shutdown cleanly?

I'm running Linux Mint with LXDE on Dell Inspiron 1501. Whenever I issue poweroff command, or reboot or shutdown the computer via the graphical menus, it doesn't seem like a clean shutdown. In ...
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0answers
44 views

Debian wheezy - hanging on shutdown

My debian system hangs when I'm trying to shutdown/reboot. It hangs on: kvm: exiting hardware virtualization (infinitely blinking white cursor) I've tried to shutdown by gui and by ...
0
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2answers
50 views

How to escape from command line interface in fedora21?

I was stuck in command line interface of Linux Fedora 21. I don't know how to get to the GNOME. I forced my laptop to shutdown by hitting the power button several times. Now I really want to know how ...
1
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1answer
57 views

How to turn off scroll lock LED, indicating keyboard layout, when the PC is turned off

I edited the file /etc/X11/xorg.conf.d/90-keyboard-layout.conf: Section "InputClass" Identifier "keyboard-all" MatchIsKeyboard "on" MatchDevicePath "/dev/input/event*" Driver "evdev" ...
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0answers
99 views

Acer Aspire v5 571 Power off reboots Arch linux

Everytime I try to power off my arch linux it will turn off and reboot. I assume the reasoning why it does this is because the usb ports don't turn off and it somehow turns it back on. I was trying ...
1
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1answer
81 views

Is there any command in linux which will force linux machine to not shut-down

I have a very important process which is having a Queue, In Queue i'm storing important data and when if someone trap that process it must have to process the data which is there in the Queue after ...
2
votes
1answer
89 views

Why doesn't `shutdown now` (with no other arguments) run init scripts?

I'm running Rasbpian on my Pi, and I have a script in /etc/rc0.d (or more precisely, a symlink to /etc/init.d/myscript.sh) that does some GPIO output to notify the user that power can be shut off. If ...
1
vote
1answer
81 views

SSD dedicated to swap-only fails on Debian or Ubuntu

It did not happen to me yet, but if I dedicate a single SSD (non-RAID) to swap-ONLY and the server system is using it to full capacity - what happens next? How am I to recover, assuming I have an ...
5
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1answer
149 views

Configure power button to shutdown on Debian/Mac Mini G4

I use Debian/PPC on an old Mac Mini G4, it currently serve as a DLNA server (UPnP), no mouse or keyboard plugged. I would like that my power button also serves to shutdown the box. Currently it does ...
2
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0answers
90 views

Server shutdown suddenly [closed]

One of our production server shutdown suddenly for unknown reason. I've checked the logs and found this: init: tty (/dev/tty5) main process (2399) killed by TERM signal Dec 7 12:02:32 rh ...
2
votes
1answer
65 views

Right way of running a root task/program at background

I'm writing a program that needs to run at the background as root. (for any user) To do this I used the /etc/rc.local file. And it seems to work. The problem that I am experiencing is, when a ...
2
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0answers
134 views

Properly power down SSD during shutdown

I recently got a Samsung SSD. I have debian wheezy installed on it. I carry it around in a USB enclosure and boot both my work and home computers from it. How can I ensure that the system properly ...
2
votes
1answer
69 views

Shutdown script seems to be executed twice

I have a small backup bash script that I wrote for my computer at work. I have copied the script into /etc/rc0.d/ and called it K01backup so it is executed before anything else upon shutdown. It backs ...
0
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1answer
56 views

Shutdown so fast on iMac

I'm using Ubuntu 14.04 on iMac 27 in dual boot with OSX via rEFInd. It works nice but when I click to shutdown the Ubuntu it is so quickly and the screen becomes black in 1 or 2 seconds. So I can ...
1
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1answer
93 views

Why does my script does not run in runlevel 0?

I made a script with following LSB header #! /bin/sh ### BEGIN INIT INFO # Provides: updateservice # Required-Start: $local_fs $time $network $named $syslog # Required-Stop: $local_fs ...
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votes
5answers
1k views

Can you make a linux system halt and boot my Raspberry-pi at certain times?

How to make a system turn itself off and back on at different times. For example I would have my "server" turn off at 4 A.M then turn back on at 5 A.M every day. Is this possible? I am using a ...
0
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1answer
118 views

how to reboot multiple computer using bash loop from the txt file

can anyone knows how to reboot computer in just one line code of bash (by looping itself). The details will be get from the text file which are the IP Address of each computer. When the script gets ...
1
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1answer
51 views

On shutdown, do un-mounting drives happen before shutdown signal handling?

So based on my understanding of the Unix/Linux shutdown process (which is highly limited I admit), I think at some point these steps happen: 1. mounted drives get unmounted 2. a termination signal ...
2
votes
1answer
136 views

shutdown program doesn't terminate after scheduling a shutdown

I'm having a bit of trouble with my home server (running Debian 7.7). When trying to schedule a shutdown, the following occurs: serverbox:~ $ sudo shutdown -h +10 Broadcast message from ...
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0answers
287 views

system won't poweroff, restarts with :“Synchronizing SCSI cache”

Running Debian testing, after a system upgrade a while back my machine started to refuse to power down. It hangs with: Synchronizing SCSI cache Waits a few seconds, and then reboots itself. It ...
3
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0answers
68 views

Bad/strange USB device issue: failed to shutdown/restart

On a fresh Arch Linux installation with Intel i7 processor and an Nvidia graphics card, I noticed during boot log messages related to a usb device filled the screen before it reached the graphical ...
18
votes
4answers
2k views

Is there a fastest way to shutdown the system?

Or is shutdown -h now the fastest it can get? I look for some syscall or similar that will allow to skip lots of the stuff done prior to shutdown (in particular to care about the running proccesses). ...
2
votes
1answer
79 views

linux systemd intercept shutdown if service is active

I've created a little update/upgrade program for my arch-based linux. Instead of using a cronjob I'm using systemd and created following files: in /etc/systemd/system: uupgrades.target & ...
3
votes
3answers
175 views

How do you prevent a DHCP release during shutdown?

I am currently using Ubuntu 14.04, but expect this to be applicable for different distros. I would like to prevent a DHCP release during shutdown, and opt for either the lease to expire or for a DHCP ...
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0answers
342 views

RTC is not saving time after hwclock

So I'm having quite a bit of trouble trying to get my system to set the hardware clock's time. Here is what I did just now, everything has worked, right? The first and last command seem to indicate ...
4
votes
1answer
94 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 ...
0
votes
1answer
124 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
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2answers
79 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
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1answer
100 views

Show shutdown messages from last shutdown [duplicate]

Where does Linux store the shutdown messages from last shutdown?
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0answers
96 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
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0answers
248 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 ...
3
votes
1answer
1k 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 ...
1
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1answer
266 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"
2
votes
1answer
119 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 ...
2
votes
1answer
296 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
1answer
129 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 ...
3
votes
2answers
1k 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 ...
5
votes
1answer
3k 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 ...
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2answers
2k 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
177 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
109 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? ...