Questions related to restarting Ubuntu machines.

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11
votes
2answers
3k views

Crazy boot and reboot times after upgrading to ubuntu 15.04 (a stop/start job is running for session c2)

After upgrade to 15.04 my ubuntu loads really slowly, slower than Windows 8 on the same machine, which insults me. I turned off splash screen, and when I boot the system I get this: A start job is ...
0
votes
1answer
84 views

I want to forbid guest to push reboot

Every user or everyone it Guest Session can reboot computer. I want that Only root can reboot or power off computer. And about button of power off. Button must to be disabled. What I must do?
0
votes
1answer
38 views

ubuntu login from winwows 8.1

I have dual booted Ubuntu 14.04 with Windows 8.1. I restarted the pc with command shutdown -r now in Ubuntu Terminal. The PC restarted but now I can only access Windows and can't login to Ubuntu. ...
2
votes
1answer
1k views

Cannot shutdown or reboot after upgrading from 14.10 to 15.04 on Intel NUC

I have been running ubuntu 14.04, then 14.10 on my Intel NUC model DN2820FYKH for months without any issues. I recently reformatted and reinstalled a fresh copy of 15.04, and after doing so I am now ...
1
vote
1answer
120 views

How to force reboot of Ubuntu phone?

To me at happened that Ubuntu phone went black, background light stayed on but it didn't react to any input. How can I force reboot just with the hardware keys alone?
1
vote
1answer
50 views

WHERE to add more IPv6 addresses

I have a script to add many new IPv6 addresses on reboot and that code is in /etc/rc.local. The problem with this is that service processes (such as DNS server and web server) get started before the ...
0
votes
1answer
214 views

Booting from Live USB while Ubuntu 15.04 is already installed on the HD, makes next boot not find ad an ny OS

I had 15.04 already installed on my machine, and wanted to see something on a clean installation via a Live USB. So I restarted and booted from my USB and played around on a clean installation. ...
0
votes
1answer
168 views

operating system not found after installion from cd

I have succefully installed ubuntu 14.04 on sony vaio. After i click reboot now, it reboots and then says no operating system found! i tried to insert again the cd it enters and says try ubuntu or ...
5
votes
1answer
2k views

14.10 to 15.04 upgrade, now I can't poweroff or reboot!

I was previously running 14.10 without any problems on an Intel NUC Bay trail but then after upgrading it to 15.04 my PC won't poweroff or reboot anymore. At the shutdown messages it says umounting ...
2
votes
1answer
551 views

ifdown in cron bash script fails to run

I have a script that is run when a server (Ubuntu 14.04) boots up using @reboot in crontab (Under the root user) @reboot /bin/bash /root/init.sh >> /var/logs/vminit.log The script runs a ...
10
votes
10answers
4k views

Maximum time for which a Linux PC can be UP? [closed]

Actually I had a linux system ( running Ubuntu 12.04.3 ) for days without reboot. I ran in to some errors like sleep getting hang and some network mounted file system not getting mount even able to ...
0
votes
1answer
447 views

Ubuntu freeze on logout

I've just installed Ubuntu 15.04 and I'm experiencing a trouble when I try to logout. I think this is a recurrent problem with Ubuntu since I already experienced this same problem with release 14.10 (...
5
votes
1answer
4k views

Ubuntu 15.04 after reboot lost Ethernet connection

I've installed Ubuntu 15.04 and after a reboot I lose my Ethernet connection. After I've disable and re-enabled my connection Ethernet works fine, until I reboot again. This has been going on ever ...
1
vote
2answers
490 views

What harm can a cold reboot cause into your computer? [closed]

I was taking a look at the game DEFCON, and it froze my PC. Unfortunately, I only discovered the REISUB thing after a cold reboot. Now, what harm the cold reboot caused into my computer? Any type of ...
1
vote
0answers
118 views

Cannot scan after plugging USB scanner into running system, reboot required

I am using an Epson Photo Perfection scanner with Ubuntu 14.04 LTS. I have installed the Linux drivers successfully but I still have the following annoying problem. I cannot use the scanner when ...
1
vote
0answers
26 views

How can i enable user to have reboot privileges without sudo? [duplicate]

How can i enable user to have reboot privileges without sudo? Need to keep sudo password enabled. ssh user@server "sudo reboot" does not work because it requires a password to be entered. Want ...
0
votes
1answer
360 views

Ubuntu doesn't reboot / shutdown properly

root@pcu:~# uname -a Linux pcu 3.16.0-33-generic #44~14.04.1-Ubuntu SMP Fri Mar 13 10:33:29 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux After any shutdown command (shutdown, halt, poweroff, init, GUI ...
0
votes
1answer
35 views

Shortcuts missing everytime I reboot pc (target on anouther partition) [duplicate]

Well, I'm new to linux. And I have 2 partitions - one where I have linux installed, and second where I hold my files. I created 2 shortcuts on my desktop, but everytime, when I reboot my pc, they are ...
0
votes
1answer
29 views

Desktop Settings deleted after update

I have installed Ubuntu 14.10 Multiple Times and after the Software Update the Desktop Customizations are deleted I did a fresh install and About 70 Programs were updates following a reboot. After ...
0
votes
1answer
101 views

My laptop not showing dual boot [duplicate]

Im using dell vostro 3546. Just before i was install successfully ubuntu. Before it has windows8.1. Now i did restart my laptop and doesnt showing dual boot and it showing only ubuntu. I donot know ...
2
votes
1answer
135 views

Restart and resume applications like in OSX

In OSX there is this restart and resume feature, that makes every window of every application (that supports this feature) resume after a system reboot, even unsaved new documents, mails, images etc. ...
0
votes
1answer
176 views

Ubuntu Server is resetting folder permissions for .ssh on reboot

Every time I power cycle the machine the .ssh folder permissions are reset and become too open for ssh. I need to physically go to the machine and chmod 0700 ~/.ssh before I can ssh in (otherwise ...
0
votes
3answers
1k views

PC does not boot into Windows, but Ubuntu still works well; how to recover?

I installed 7 operating systems in my PC. All worked very well. (Ubuntu 11, Ubuntu 14, EduBoss, Redhat6, Nodezero, Windows 8, Win 7). I frequently used Windows 8 and Ubuntu 14 last 6-7 months, I enjoy ...
1
vote
1answer
80 views

Why so many Reboots

I have a site that has 3 servers running Ubuntu 14.04.2. In the last couple of weeks I have had several updates that require a system reboot. I ran a system running unix that went years without a ...
0
votes
1answer
256 views

Ubuntu 14.04.2 with kernel version 3.13.0-46-generic fails to shutdown

When I execute shutdown and restart from the top panel or sudo shutdown -h/ sudo shutdown -r, everything goes fine until the last line "Will halt now", then it hangs, I've had to hold the power button ...
0
votes
2answers
2k views

Ubuntu 14.04 won't shut down, reboots instead

I've researched on this topic and did all of the recommendations such as editing kernel options acpi=off, acpi=noirq, acpi=force, then sudo update-grub. i also edit the bios to disable wake on lan ...
0
votes
1answer
126 views

Ubuntu 14.04 with Gnome 3 experiencing random reboots

I'm not sure how to diagnose Ubuntu problems, as I've only been a user for a few days from Windows 8.1 I've never had any random reboot issues with Windows, so I am quite confident that it's not a ...
2
votes
1answer
245 views

Is umount performed automatically during a reboot?

Let's say I have a USB device mounted. When issuing a system restart using the command line utility "reboot", will the system automatically umount my USB device? Also, typically, if any shell is up ...
1
vote
0answers
50 views

(System manufacturer P5K SE) suspend/resume failure (Ubuntu 14.04)

After the PC went to suspend it doesn't start from the last state. Just does a reboot. I can suppose that I could wrong configure Asus motherboard but can't find out which one.
0
votes
2answers
716 views

Open VPN connection doesnt work after reboot Ubuntu 14.04

First I like to thank anyone who is giving these great answer here ! Im a new Ubuntu user and still on learning curve. After 8 years of OSX it is been harder than I expected. Two weeks ago I installed ...
2
votes
1answer
813 views

Bridge interface does not get IP address after reboot

I'm using Ubuntu 14.04.1 LTS. I'm using kvm and added a bridge interface to be able to connect from VM to outside internet. These are the steps I followed to do that. ifconfig eth0 0.0.0.0 brctl ...
1
vote
1answer
640 views

Ubuntu 14.04 Rebooting Not Working

When ever I reboot Ubuntu (not shutdown but reboot), my computer hangs. It hangs before grub even comes in to go to Ubuntu. I then have to manually do a hard shutdown and power it back on and it boots ...
0
votes
1answer
124 views

Touch screen not working after some reboots (another reboot resolves it)

I am trying to troubleshoot an issue on a Lenovo Flex 14 with Ubuntu 14.04.1 (standard Unity flavour) with touchscreen. Mostly it works perfectly well; but from time to time I reboot (mostly ...
0
votes
2answers
730 views

ASUS X453M Freeze on Splash Screen on Booting or Restart / Shutdown

just fresh install on new notebook ASUS X453M it's often to hang on boot or restart ubuntu, its only respond to force shutdown button i must forceshutdown and boot many times to can login to ...
0
votes
3answers
136 views

how to get Ubuntu 14.10 to boot up

down loaded Ubuntu 14.10 for AMD 64. New pc. burnt iso image to dvd. installed on clean drive ok. Passwords worked fine. auto downloaded updates. installed ok. Restart did not work.my machine shut ...
2
votes
3answers
472 views

How to automatically reboot after running a command

I'm installing updates on a bunch of machines, and I simply want to run: sudo apt-get update sudo apt-get upgrade sudo reboot all at once on all machines (after hours of course) and let them run ...
0
votes
1answer
235 views

Ubuntu goes black after upgrading (using VirtualBox)

I am running Ubuntu 14.04 within Oracle VirtualBox 4.3. I saw a notification to upgrade some package which I couldn't remember, to be honest. After upgrading process, I was asked to reboot, then ...
0
votes
1answer
33 views

New To Ubuntu; Have Reboot issues after Updates

I am new to Linux. I wiped my ASUS laptop and installed Ubuntu. I tried to search for my issue, but I hadn't come across what I needed. Things work well and I am enjoying using Linux. However, when I ...
0
votes
2answers
46 views

Can rebooting many times cause problems [closed]

I will be overclocking and configuring my rig in about an hour and I decided to try out everything individually. This means I will reboot my computer 30-40 times, maybe even 50 within hours. Can this ...
-3
votes
1answer
144 views

PC reboots randomly while powered on

I have an old machine and a new machine, I just installed Lubuntu on the old one because I tried to transition from Lubuntu but Puppy Linux but went back right after because Puppy Linux wasn't ...
1
vote
1answer
71 views

Regarding reboot problem

I have been installing Ubuntu 14.04 along with Windows 8.1. after completion of whole the process of installation, I was not able to find "dual os selection" dialog. Every time it show normal booting ...
0
votes
1answer
261 views

How can I run a command at start-up on Ubuntu server not as root?

Occasionally (it's pretty rare) my VPS provider has to reboot my VPS in order to fix issues or apply a patch. Is there any way to run commands as my user automatically once the VPS reboots? I've read ...
1
vote
1answer
139 views

Unlock password when reboot Ubuntu 14.04

Every time I reboot the computer I got question to unlock the disk. Is it possible to remove this? The computer is used by several people and I don't want to give out the root password.
0
votes
1answer
83 views

How to remove ubuntu after booting from live USB?

I am new to Ubuntu, even to BIOS. I am having a laptop with Win 8.1 pre-installed. To test Ubuntu I did this: I downloaded Ubuntu 14.04.1 LTS I downloaded Universal USB installer from PenDriveLinux....
-1
votes
1answer
1k views

i have a black screen when booting ubuntu 14.04 just after update on my samsung chromebook

hey guys i got a problem i have spent day and night for the past week trying to install Ubuntu on a Samsung Chromebook which i plan to do an internal hardware makeover on but unfortunately right now i'...
0
votes
4answers
2k views

Ubuntu hanging on shutdown/reboot

My situation is very similar to Shutdown Hangs for 5 Minutes on Kubuntu 14.04 but I am using 14.10 with a gnome environment instead of KDE (Ubuntu with gnome package added not the native version). ...
0
votes
1answer
36 views

crontab not running simple job

i have a very simple command in cron that should reboot my system everyday. I modified crontab in root with the following: sudo crontab -e I then added one line to the end of the crontab: 0 1 * * *...
1
vote
1answer
396 views

Problem with shell script to reboot computer/switch to windows

I have little experience with linux and hardly ever wrote an shell script, but needed a workstation with both windows and linux to do certain calculations. The workstation is however mostly used ...
1
vote
1answer
568 views

Cannot load grub4dos through kexec

I execute sudo kexec -l /sbin/grub.exe sudo kexec -e and get black screen with some phrases. The font is squeezed vertically and I see also one copy of the same phrases on the right. There are ...
0
votes
1answer
127 views

Xubuntu reboots very slow

I recently made a fresh Xubuntu 14.04 install. Before that, my laptop was rebooting in approximately 30 seconds, 15 seconds for shutting down and 15 seconds booting again. Now reboot takes about 55 ...