Questions tagged [reboot]

rebooting is the process of bringing down a system in a state where it will complete reinitialise, without removing power from the system. Use this tag for question related to problems with being able to reboot a system. For problems booting into a particular installed OS, use the appropriate bootmanager tag (e.g. [grub])

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721 views

Find out what's causing random restarts if /var/log/syslog is empty

I'm dealing with a server that randomly reboots every once in a while. Checked the power and nothing is wrong there. However the syslog is alway completely empty when it comes to the reboots, see the ...
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2answers
2k views

Reasons for a server to be unreachable, How to investigate?

One of my server which host a mongoDB is, sometimes and "randomly" unreachable. After a while, it come back, like nothing happend. During this period, impossible to open an ssh tunnel (timeout, don'...
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1answer
5k views

Apache boot without asking for passwd

So I'm maintaining a server which has a verified SSL certificate setup, however there is a password on the private key and so whenever apache is reboot, we get a message asking for the password. This ...
3
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1answer
5k views

Ignore sshd inhibitors when rebooting

On my home PC, I set up sshd as an SFTP server so I could share files with my friends. However, when I attempt to reboot and someone has an SFTP client connected, I get the following message: $ ...
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0answers
29 views

How does reboot run without root password on the console? Can I get this to happen with other programs? [duplicate]

I login at the graphical console terminal on basically stock RHEL Linux 6, and type reboot in the command window. The system reboots without being asked for a password eventhough I am not the root ...
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1answer
2k views

Why isn't “REISUB” working on Debian?

I'm using Debian 'Jessie'. Sometimes my computer freezes, and then I can't use Ctrl+Alt+Del to reboot, Ctrl+Alt+Backspace to kill the X Window System nor Ctrl+Alt+F1 to open a new shell. I've read in ...
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0answers
35 views

Raspberry pi blocks completely after multiple reboots

I have a c++ program running on login on the raspberry pi, this program checks data for multiple devices attached on to it (Arduino Mega 2560 + Modbus RS485), gets inputted data from them and sends ...
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1answer
129 views

cross-reboot monotonic systemd timer

The timer functionality of systemd includes monotonic timers, which measure time in real uptime since some starting point after boot. This means that after a boot, the service triggered by the timer ...
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1answer
5k views

Ubuntu 14.04 black screen after Nvidia Driver 352

I wanted to make use of my Nvidia graphic card so after a little bit of reading I saw that it is possible to change it in the Additional Drivers. It's somewhat similar to here: Ubuntu 14.04 Nvidia ...
7
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1answer
15k views

Why does my systemd unit fail to run on server reboot?

I'm having troubles getting a systemd service unit file to run correctly when the server reboots. This server is a fresh CentOS 7.0.1406 install. I'm trying to set it up with multiple Apache httpd ...
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1answer
511 views

custom shutdown script in rc6.d does not seem to be working.

I'm working with a software application that's a bit touchy so I wan't to shut the software down automatically on reboot or shutdown. I have created a script an placed it in /etc/init.d/ with a ...
4
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1answer
11k views

Time it takes to reboot a Linux server

Is there a way to work out how long it would take to reboot a Linux server? To clarify, the time from the reboot command starts to when the server is back up and running (ie all services started, ...
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1answer
32 views

Does `reboot` go through GRUB?

I had a pretty broken GRUB set up where booting required the enter key to be pressed. However today I ran sudo reboot and it powered off and came back up without a hitch. I doubt I fixed my GRUB issue ...
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0answers
617 views

Reboot takes too long

I have a Toshiba S55-B5280 which originally came installed with Windows 10 and after a while I decided to go with linux and try to install it. My choice was Manjaro Linux and so far it has work well ...
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1answer
496 views

how to interrupt system reboot?

I currently have a system which reboots every 1 in 3 reboots, I can find the date time as to when and i can find out who (just says system) but I cannot find out why. I was wondering if it was at ...
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1answer
450 views

grub2-reboot without root

I use the following script (based on code here) to reboot to windows, so I can stop kicking myself every time I start daydreaming and miss the boot menu. #!/bin/bash ENTRY=$( grep Windows /boot/grub2/...
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1answer
318 views

Shutdown with keyboard press doesn't work

I have a Debian Jessie build, and I want to add keyboard shutdown. I've tried the following, without any success: Attempt 1 To /etc/inittab I added ca:12345:ctrlaltdel:/sbin/shutdown -t1 -a -r now ...
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1answer
525 views

Why do I still need to run shutdown as sudo after this?

I'm running Linux Mint 17.3. By default, running shutdown or other commands like reboot, poweroff requires root privilege. So I added the following line lesaff_b ALL=(ALL) NOPASSWD: /sbin/...
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1answer
292 views

Does a Linux brand cause a Dell Latitude D620 notebook to hang during reboot process?

Recently, I installed Linux Trisquel 6 on a Dell Latitude D620 notebook (dual core cpu, 2GB DDR and 60GB hard drive), where previously Windows XP was installed. But Trisquel doesn't seem to support ...
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6answers
10k views

Why does reboot and poweroff require root privileges? [duplicate]

To restart or shut off Linux from the terminal, one can use reboot and poweroff, respectively. However, both of these commands require root privileges. Why is this so? What security risk is posed by ...
3
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1answer
112 views

Investigate an unwanted shutdown over the weekend

This morning my machine running Fedora 22 was in a state of shutdown showing, IIRC, something like the following, in fullscreen white on black terminal: [Rebooting] ... System halted. After holding ...
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1answer
697 views

What causes runlevel (to lvl 0)

What can cause my system to hit runlevel 0 during normal operations? shutdown system down 2.6.32-042stab11 Thu Dec 24 13:53 - 21:47 (1+07:54) runlevel (to lvl 0) 2.6.32-042stab11 Thu Dec 24 13:52 -...
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1answer
46 views

Finding out why Reboot only stops the system

I'm using puppy on a 500 MB ram machine.It works quite fine so far, but whenever I type in reboot........all stops and I need to manually shut down the machine and restart it (energy switch). I've ...
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1answer
41 views

Check that mashine was rebooted

A GUI application is started by the normal user. It's doing stuff with the bootloader and then asks for reboot. The question is how to implement the second part: after reboot and login into the ...
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1answer
51 views

Debian Wheezy VPS reboots after each login

I have a Debian Wheezy vps on the cloud. Today I tried to login using the VNC console provided by my vps service provider but everytime I login the server automatically reboots after 5 seconds! Has ...
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0answers
28 views

Can I specify partition in “reboot” or any similar commands?

I like to make scripts for everything that takes a bit of time, and when I have to reboot to another partition, I press the reboot button and then hold alt (⌥) and then I have to choose partition. I'd ...
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1answer
1k views

Linux: System reboots instead of power off or shutdown on motherboard intel DB85FL

The question is: Whenever I ask the system to shutdown to power off, it goes to power off mode for like 2-3 seconds then it powers on automatically again without my intervention. I did not go manually ...
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1answer
491 views

Send network connectivity ping from server to client

So I have a server and a client computer which I must have running on the network all the time. Somemtimes because I am running my client computer on WLAN the network goes down so I need to restart it....
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1answer
230 views

FreeBSD - Automatic reboots on boot attempts - init / getty failure?

$ uname -a FreeBSD MACH1 10.2-RELEASE FreeBSD 10.2-RELEASE #0 r286666: Wed Aug 12 19:31:38 UTC 2015 root@releng1.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC i386 On booting, everything seems to run ...
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0answers
80 views

Why deconfiguring interfaces is a need on reboot?

When I reboot the Raspbian (Debian 7.8) it waits around 10 seconds before shutdown at "deconfiguring network interfaces" step. What would be if we make the system skip this step? Why is deconfiguring ...
2
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1answer
3k views

cronjob at resume from suspend

using linux. I know you can do an @reboot cronjob. I want to do an equivalent thing but instead of running at reboot, running after my computer awakens from suspend. Is that possible?
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1answer
998 views

How does gnome reboot without root privileges?

I am reading the book Linux kernel development, in chapter 5 "System Call Implementation" page 77 says For example, capable(CAP_SYS_NICE) checks whether the caller has the ability to modify nice ...
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0answers
5k views

Failed unmounting /home during shutdown arch linux

I've installed arch on my system multiple times and everything has worked fine, but since last installation I've been seeing messages : Failed unmounting /home. and Failed unmounting /run/user/1000. ...
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1answer
353 views

strange results from investigating a reboot in auth.log

My Ubuntu 14.04 server is hosted on a well-known cloud provider. I noticed today something that usually makes my heart stop: user@myserver123:/var/log$ screen -ls No Sockets found in /var/run/...
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2answers
5k views

What caused my CentOS 6.4 box to reboot itself?

I noticed that the MySQL daemon running on my CentOS 6.4 machine was suddenly not running anymore. I checked the MySQL log, but didn't see anything relevant: 121229 22:17:45 mysqld_safe mysqld from ...
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0answers
119 views

Last reboot shown few rows at the same time?

I had got this from my server logs. I wonder what does it mean by that? ("Last reboot", The repetition of the same day and time) reboot system boot 3.13.0-35-generi Fri Jul 10 17:15 - 12:06 (18:...
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1answer
23k views

How to continue a script after it reboots the machine?

I'm writing a shell script in bash. At some point in the script, it detects that the machine needs to be rebooted before continuing. It issues: sudo reboot When the machine comes back up, there ...
0
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1answer
9k views

Find out what caused my Ubuntu rebooting?

My Ubuntu 14.04 on Thinkpad T400 just rebooted automatically. Before that, my screen just became unresponsive. My memory and swap were mostly used, mainly by webpages opened in Chrome and some pdf ...
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2answers
194 views

how to log reboots dates

I'm new to Linux, and I'm always unsecure if I'm doing things the proper way I'm using a Raspbian system that sometimes reboots ( for some non software problems ) and I want to have a log on when each ...
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3answers
498 views

Getting crontab events that would happen given a start date/time

Let's suppose we have a crontab scheduling some commands on an RPi project, and these commands toggle a status of a flag. The box could go out of power, and then reboot. I want to have the flag status ...
0
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1answer
115 views

Extend functionality of commands such as reboot to record a reason

Is it possible to extend the functionality of system commands such as reboot, shutdown -r now or init 6 so that when they are issued, the user must enter a reason and other information as part of an ...
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2answers
646 views

Uninstall Windows and Install Elementary Freya OS, cause unbootable OS

I've already uninstalled my Windows and installed Elementary Freya OS. But then my laptop won't reboot. It said "Reboot and select proper boot device ..." Here is the complete specification of my ...
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1answer
2k views

proper way to stop software RAID before system shutdown

This should be straightforward, but I have been unable to find a direct answer by searching. I find that if I unmount an mdadm-managed array and then either (1) unplug the array, (2) power off the ...
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3answers
1k views

update-rc.d doesn't accept the header of a script file

I have beagleBoard and I want to start my script at boot time ( boot/reboot). So, i ran command: update-rc.d GatewayStart.sh defaults Output which says: header is rejected root@beaglebone:/etc/...
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2answers
97 views

Why doesn't this sequence of keys, using SyRq, work

I have Fedora 20, with zshell and Mate desktop. I have just come across this article about using SysRq keys, but they don't give the results shown there. I am using Alt with the key marked "Home" ...
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2answers
2k views

Does setting the system time back impair logrotate operation?

I'm working on an embedded linux system where the root filesystem is mounted from an SDcard. Although many systems like this just mount /var/log on a ramdisk, I'd like to save the logs to the SDcard ...
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0answers
690 views

Unable to reboot or shutdown Linux Mint 17.1 on VMWare Player

I installed Linux Mint 17.1 on VMWare Player 7.1.0 but when I try to reboot the system, it says ModemManager is shut down and in the next line, it says nm-dispatcher.action: Could not get the ...
2
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1answer
511 views

What prevents a reboot?

On Linux, how can I track what prevents a reboot of the system after issuing it via sudo reboot? I always thought that this caused switching the runlevel and in the end the reboot, but now I was ...
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0answers
103 views

Is “shutdown -r now” safe? [duplicate]

Is it safe to reboot your VPS this way, or does it kill all processes directly? And if not, what is the right way?
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1answer
420 views

rebooting in an init script

Is it doable to get a clean reboot from in an init script? My init script may change other init scripts, including the numbered S/K script symlinks typically found in /etc/rcN.d in many Linux distros....