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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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Hanging on reboot with black screen and blinking underscore

Everything works, but when I reboot via "systemctl reboot" or through GNOME, it will never actually reboot, but instead it gets stuck in a black screen with blinking underscore cursor, and I am forced ...
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2answers
4k views

My machine always reboot into the GRUB prompt instead of GRUB menu

I got a problem that is after rebooting grub CLI always appears instead of grub menu. For me the problem is not being unable to boot into any kernels (it is simple: type exit and enter twice do the ...
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0answers
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How to find the apps/packages/patches/configurations pending for reboot on hp-ux?

A few config changes carried out, but didn't reboot. Now,I would like to know the patches/apps/packages/apps/configurations pending for reboot for change config verification purposes. While googling, ...
0
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1answer
93 views

kernel error in CentOS 6.9

Recently I see these messeges in my /var/log/messeges and dmesg | less: kernel: INFO: task flush-8:32:1065 blocked for more than 120 seconds. kernel: Not tainted 2.6.32-696.el6.x86_64 #1 ...
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0answers
18 views

Can I reboot Ubuntu automatically if everything important is saved?

Is it possible to configure Ubuntu such that it will install updates on night when I'm not using computer and reboot the computer if it needs rebooting and there is no unsaved works? It would be nice ...
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2answers
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reboot command doesn't reboot on puppy linux

When I type the reboot command in a consol the screen goes dark but keeps being turned on indefinitely. How to fix that ?
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1answer
21 views

NVIDIA DevBox with Ubuntu 16.04 and 4.4.0-137-generic kernel randomly reboots and automatically shuts down overnight

I've recently stated using an NVIDIA DevBox that has an ASUS bios, with ther kernel version and ubuntu version mentioned above. For some reasons the machine can't really be left on overnight, as it is ...
1
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2answers
77 views

Will the kernel ensure filesystems be in a clean state when restart/poweroff?

What does reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_POWER_OFF, NULL) syscall do with filesystems exactly? I know some still cache-in-memory data will be lost, but if I never ...
0
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1answer
174 views

What is the difference between using crontab -e and /etc/crontab [duplicate]

I wish to run stuff from startup and also trigger reboots using cron. I was using sudo crontab -e and adding commands there. The commands work apart from the reboots. The reboots do not happen all ...
1
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1answer
144 views

CentOS 7 fails to reboot my PC

I have small Pegatron PC with Linux. When I was using Windows 7, reboot worked correctly. I migrated to CentOS, everything works except #reboot. Computer is never turned off, it simply stops ...
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0answers
41 views

A machine running Ubuntu or Debian shutdown on reboot. What steps would you use to find what dev/driver is causing this?

I have a few of the same board that shuts down on reboot but never restarts. It does this with Debian or Ubuntu (yes yes, two sides of the same coin,) but does not do it in Fedora. I read of some ...
0
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1answer
94 views

Can I save the working status of Ubuntu before reboot, and recover it after reboot?

Is it possible to save the working status of Ubuntu,and reboot it and recover its working status? By working status of Ubuntu, I mean things such as the programs that are running, and the statuses of ...
33
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9answers
53k views

How can I tell GRUB I want to reboot into Windows—before I reboot?

I have a dual boot Linux/windows system set up, and frequently switch from one to the other. I was thinking if I could add a menu item in one of the menus to reboot directly into windows, without ...
0
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1answer
74 views

How to writes the log on the screen during shutdown and startup (after grub)

As we know, when we startup the system (after grub) and when we shutdown the system, many logs will be printed on screen. I know that the kernel would write some logs of the kernel. But how about the ...
2
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1answer
3k views

Ubuntu machine randomly reboots [closed]

I have a Ubuntu machine which randomly reboots itself: last reboot reboot system boot 2.6.32-042stab12 Sat Mar 25 23:48 - 12:42 (11:53) reboot system boot 2.6.32-042stab12 Wed Mar 22 18:28 - ...
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0answers
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Chromium OS says “Your system is repairing itself. Please wait” and then reboots

I downloaded ChromeOS-Vanilla-3851.0.2013_03_17_1641-r7af8fe3d.zip from chromeos.hexxeh.net, then extracted and "burned" to a 4GB USB drive with dd if=ChromeOS-Vanilla-3851.0.2013_03_17_1641-r7af8fe3d....
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0answers
86 views

Is it possible to distinguish signal from kernel at reboot and at kill from terminal

As I know, we can send a signal SIGTERM to a process by pressing ctrl+c or by using pkill -f processName. Also, when we reboot or shutdown, the kernel will send SIGTERM to each process too. So I'm ...
0
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1answer
125 views

How to fix Linux from doing fake Restarts?

How can I stop Linux from doing a fake Restart Computer when I go to select Restart from the Quit menu. What I mean by a fake restart is that, it goes to do a restart, shows the splash screen image ...
2
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1answer
116 views

How and when is the command string arg to reboot() with LINUX_REBOOT_CMD_RESTART2 executed?

The manpage of reboot() says LINUX_REBOOT_CMD_RESTART2 (0xa1b2c3d4; since Linux 2.1.30). The message "Restarting system with command '%s'" is printed, and a restart (using the command ...
2
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1answer
101 views

Linux Mint - changing settings is ineffective (even without reboot)

After some update, the annoying and frustrating situation is the following. After each reboot the update icon shows the blue circle with '1' inside it; if I click on it, the update manager opens and ...
0
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1answer
35 views

systemd service that reboots?

I am getting a new microSD flash ready for deploying a large number of BeagleBones, Blacks and Greens. There's a new-ish u-boot feature that is required for this, but I can't know in advance what ...
0
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1answer
418 views

Sudoers - group managing and reboot/shutdown

I've got a group (let's say name "group1", ID = 1234) and a user (let's say name "user1", ID="4321"). I want to do two things: I want that user to change passwords from other members of that group, ...
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0answers
109 views

Logging/tracking-down process that auto-reboots CentOS server at boot time

Background I have a bunch of CentOS servers with proprietary applications running on them which are part of a third-party security camera system supplied by an external vendor (i.e. I don't have ...
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0answers
85 views

Plasma 5 - shutting down kills apps

I'm using KDE/Plasma for several years now and I always had a problem with shutting down but it's just now it started to annoy me. The problem is that when I shutdown my laptop (with Plasma shutdown ...
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2answers
2k views

Is reboot -f a safe way to cold-reboot?

On the machine I'm currently at, sudo reboot will only give me a warm reboot. Is sudo reboot -f a safe way to do a cold reboot (through BIOS)? I'm booting through MBR, not EFI and I'm using upstart (...
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4answers
3k views

Unable to SSH into Google Cloud Server after Reboot

I was learning to configure a Debian server and familiarising myself with the common command lines. However, after executing the reboot command in SSH, my subsequent SSH connections were refused and ...
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2answers
217 views

How can I ssh into multiple password protected machines to reboot them?

I'm trying to write a bash script to reboot multiple machines via ssh that are all password protected. I have all the IPs listed in a .txt file and want the script to read the IPs from there. I've ...
52
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4answers
20k views

Save entire process for continuation after reboot

I developed an algorithm for a fairly hard problem in mathematics which is likely to need several months to finish. As I have limited resources only, I started this on my Ubuntu 12.04 (x86) laptop. ...
2
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2answers
9k views

Warn users that the system is going down for a reboot

I wonder how you would warn users that the system is going down for a restart. According to LPIC1 Training here: http://www.ibm.com/developerworks/library/l-lpic1-v3-101-3/ There are 2 ...
5
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4answers
24k views

Linux VM's disk went read-only = no choice but reboot?

I have several Linux VMs on VMware + SAN. What happened A problem occured on the SAN (failed path) so that for some time, there were I/O errors on the Linux VMs drives. When the path failover had ...
0
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0answers
76 views

ACPI Shutdown works but not Reboot

I had originally thought that ACPI was not working on my system at all, but discovered that while a Shutdown operation successfully powers down the system, a Reboot operation will reach the Restarting ...
0
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1answer
321 views

restarting a script upon boot in screen/tmux

I have a script that runs in dot net, that works fine when starting it through putty- either in screen or in tmux. However i have been trying for in total over 8 hours to get it to work with systemd ...
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0answers
3k views

Reboot is not working

I have the VM running with ubuntu(14.04.4). Sometimes, I just want to restart the VM by reboot command. When I execute the command, it prompts "success" but nothing happened. I checked the syslog, no ...
0
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1answer
215 views

Which logs to look when kernel reboots because of panic?

I wish to set kernel.panic=1 and kernel.panic_on_oops=1. Is there any log I can check before/after reboot, which will indicate that the reboot was because of a kernel panic?
4
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2answers
104 views

What forces a reboot?

I experience that my Ubuntu Linux requires a restart every now and then and also that it needs restart more often than in the old days (maybe it's because it updates more). I understand that ...
2
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1answer
33 views

Any way to prevent computer from rebooting

I am trying to create an environment on my computer where it simply never receives updates or it might receive updates but still never reboot on its own. My question is can I achieve this on any ...
0
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0answers
36 views

How to reboot a frozen linux unit

There is a PROD unit with Mindspeed c2000 and Linux(3.2.54) on it. It offers many services like SSH, LAN(connecting to back-end), 3G etc. At certain times the unit goes into freeze mode and no way to ...
0
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1answer
481 views

How to set cronjob or unit file to run after reboot

I have created cronjob as @reboot root sleep 75 && firefox but then I test it, but it didn't work. In /var/spool/mail/root it shows me this what I want to archive is after every reboot I ...
0
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1answer
363 views

How to run a “Keep NumLock always on” command in Linux Mint 19 Cinnamon on each reboot / re-login?

In an answer of my question on Code Review: Keep NumLock always on in Linux (C++), I am pointed to the right solution for this problem, that being a command: setxkbmap -option numpad:mac which ...
1
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2answers
1k views

Reboot sometimes hangs [closed]

My machine sometimes does not properly reboot. I am not sure what triggers it to work or not work. It happens sometimes both during automatic reboots when unattended-upgrades tries to reboot as well ...
4
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1answer
852 views

How do I detect that my system has auto-rebooted after a kernel panic?

I'm using Linux in embedded systems, and want to configure the system to automatically reboot after a kernel panic. However, when the system comes back up, it's important for me to detect and log the ...
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3answers
6k views

When is a reboot required?

Apart from upgrading the kernel, are there any changes to a Linux system that require a reboot? I know there are situations where a reboot makes things easier, but are there any that cannot be ...
7
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1answer
3k views

How to have Linux wipe/randomize/sanitize RAM at shutdown?

For mysterious reasons I still double boot sometimes into Windows. My problem is that I fear that information may leak because the RAM memory is accessible to Windows. (the Linux partitions are ...
1
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3answers
3k views

Reboot over ssh

I'm trying to reboot a Teltonika RTU950 using ssh. I can log in as root via ssh and then reboot the router fine. However if i try to send the reboot command over ssh it does not work. ssh root@...
1
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1answer
763 views

How exactly a 'shutdown -h' “HALT” differ from “normal shutdown” in linux [duplicate]

Suppose I have 20 process/deqamons running in my linux system, How different the HALT will have an effect on my process/deamons, when compared to a normal shutdown.., *Note: I need to understand.....
100
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4answers
288k 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?
3
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2answers
135 views

wget saving files as emply plain text files on boot

I have a bash script in crontab that runs @reboot: The script itself contains a wget command to pull and download a file from the internet When I run my script after signing in and opening the ...
0
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1answer
35 views

Lubuntu: reboot-log-entries don´t seem to be correct

I´ve recently taken a look at my reboot-logs with last -x | grep reboot : reboot system boot 4.4.0-134-generi Tue Aug 28 12:20 still running reboot system boot 4.4.0-134-generi Mon Aug 27 14:...
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4answers
43k 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.
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1answer
406 views

VMWare error with Kali Linux

I have installed Kali Linux 2017.1 x64 in VMware Workstation Pro 12.5.6 along with the VMware tools (Is that the culprit?). My host is Windows 10 Creators Update 1703 build 15063.322 I have been ...