For questions regarding the function of the entire operating system and issues that affect users system-wide.

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4
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2k views

Reinstalling Grub - shows no volume groups found, how do you fix this?

I have a full backup which I had restored onto a new built system on Ubuntu 12.04 The backup did not include /dev /proc /sys folders. Upon rebooting, the grub show the following errors error: no ...
2
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0answers
11 views

only download updates after midnight and before 5am?

I am running Ubuntu 14.04 LTS. Is there a way to set the system to only download updates after midnight and before 5am?
2
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0answers
349 views

xfonts installation failed and apt compromised

I started the installation of all the xfonts packages on my Ubuntu 14.04.1 system with sudo apt-get install xfonts-* While extracting a package (one of the hundreds of the list), the system got ...
2
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0answers
160 views

Is there a system-wide spell check setting?

I just reinstalled Ubuntu on a new hard drive, and now I have to disable spell checking in just about every application. Can I do that for the whole system?
2
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0answers
82 views

Sound changed to muted on boot-up?

I just installed Ubuntu 12.04 LTS on my iBook G4 and every time i reboot the volume is changed to mute and i have to turn it up again. How can i make it so it automatically unmutes before lightdm and ...
2
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0answers
257 views

How can I distribute mandatory settings (system and LibreOffice settings)?

The last PCI settings: Users may not change their screen saver timeout, it has to be set to 5 minutes. And locked so that no configuration can be made by the user. Users must always unlock their ...
1
vote
0answers
7 views

HDMI cable plug in takes away my monitor

I am using Ubuntu 14.04 LTS. When I plug the HDMI cable into the back of my PC everything on my monitor transfers to the TV and the only thing on my monitor is my background image. Can't seem to find ...
1
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0answers
48 views

Ubuntu 14.04LTS - Random beep from system speaker

My internal speaker (mainboard) sometimes does a beep. This seems to happen randomly. Sometimes it happens every few minutes, sometimes it is quiet for hours. There seems to be no specific event ...
1
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0answers
39 views

About Hipchat4 stopped working system? Anyone have same problem? How Can I fix this?

Hipchat4 release on last week and I try to install new version suddenly, but after I use for 4-5 minutes my ubuntu desktop stopped working and can do anything otherwise shutdown only. Anyone have ...
1
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0answers
132 views

Change notification email subject - Nagios

Anyone can give an idea about, how can I change my Nagios email alert subject? I have google for sometime and every result says to change the command(notify-host-by-email) definition in commands.cfg ...
1
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0answers
147 views

Why can I not use the CAPS LOCK key when typing in my system's GUI?

I am running Ubuntu GNOME 15.10 with GNOME 3.18, and recently (after changing my password) the caps lock has suddenly not been working, now, I haven't yet noticed whether or not it is for everything ...
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0answers
27 views

No taskbar, tty incorrect login

I'm on Ubuntu 12.04. I've just installed libfolks25 and it had to restart a few services to complete installation. Once it restarted and rebooted the system, the taskbar and Unity sidebar have now ...
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0answers
178 views

start on ( condition ) in file /etc/init/rc-sysinit.conf

I am actually trying to add a boot options to start only the filesystem or start it with the static-network-up based on some system settings. We have a standard installation for multiple types of ...
1
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0answers
202 views

unable to open time and system settings in ubuntu 15.04

i am unable to open system settings and change time in ubuntu 15.04 on clicking on system settings nothing happens same on time i have changed the brightness setting registry earlier as they were ...
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0answers
194 views

CPU number differs in 'About this computer' and /cpu/cpuinfo

Question: I'd like to ask what may cause that there are two different informations about the number of processors. See the reports below. System dialog: If open the System settings/Details tab (...
1
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0answers
108 views

15.04 GUI icons (Buttons) not responding to mouse over

I've recently installed updates and they broke my GUI... :( problem is that I don't know what did it.. Here is what is happening: When I mouse over an icon in the tray, it doesn't light up like it ...
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0answers
38 views

Preparing Ubuntu to be turned off unexpectedly?

I have a few Ubuntu boxes that are locked down and used as Kiosks. Whilst we aim to turn them all off safely, the same can not be said for everyone. The machines use SSDs and there isn't moving hard ...
1
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0answers
351 views

Can't edit system files with gksu gedit gives error when saving could not back up the old copy of the file before saving the new one

I am having an issue with my Lenovo Ideapad y410p with the speakers popping and making a ringing sound which I can't seem to figure out how to fix. I found one solution on Ask Ubuntu but I am unable ...
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0answers
234 views

How to remove Shutdown Screen Text on closedown (14.04) - NVidia Geforce card

Just changed my dual-head graphics card to a NVidia Geforce 210 (MIS 210 brand) from a previous failed AMD. Upon shutting computer down (desktop 14.04) the process shows all the termination of mySQL, ...
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0answers
120 views

System settings suddenly locked to defaults

I accidentally pulled the power cable from my laptop, which is without its battery, during a session of Ubuntu 14.04, causing a hard shutdown. I then plugged the cable back, turned the laptop back on, ...
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0answers
28 views

Ubuntu 14 Idle - Non Activity Causes Poor Performance

I'm having an issue with Ubuntu 14. I have a touch screen and I noticed after medium to long periods of inactivity the device "throttles down" and takes a few moments to snap back. When I tap the ...
1
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0answers
2k views

Installing Ubuntu Desktop without a Desktop Environment?

Background I have put together my own desktop environment in Arch Linux, and I'm interested in setting up Ubuntu with the same environment. One way to do this is by installing Ubuntu Server and then ...
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0answers
36 views

Recovering the Encryption Password Method

my question is that i am installing the ubuntu 12.04 and gave the encryption password at the time of installation but i forget the encryption password so how to recover or change the password without ...
1
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0answers
2k views

April 2014 update taken, bootup hangs at Stopping System V runlevel compatibility

I've seen other threads related to my current situation, but the solutions posted didn't help... After accepting updates this morning, my system halts at "Stopping System V runlevel compatibility" ...
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0answers
78 views

/casper/vmlinuz:f ile not found

I get this error /capser/vmlinuz: file not found when I try to install Ubuntu 12.04.4 LTS using the iso file on my Windows 7 PC. Can someone help with a solution to this issue.
1
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0answers
28 views

Cannot use Persistent Mode through USB

I recent broke my Hard-drive, so the only way I can use my PC is through the USB, but when I tried going into the persistent mode, all I get is a white screen. It works on Live mode but not ...
1
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0answers
529 views

Cannot access local variables using systemtap

I am just getting started using systemtap. On my 64bit Ubuntu 13.04 system, I installed systemtap and dependencies + systemtap-doc and elfutils then added the ddep repository to my apt/sources.list ...
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0answers
46 views

system log not perpetually scrolling?

rsystemlogd is installed - when running - then system log is scrolling too with kernel.log and logging of eth0. Now it happens that system log is not scrolling despite of that rsystemlogd is still ...
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0answers
88 views

I have no sound in my computer

The sound card seems disabled. How can I fix it? I reinstalled my system but when I wanted to watch some videos, there was images but no sound. I hope you can help me. Thank you in advance. Phil.
0
votes
0answers
12 views

Most formatting options disappeared… What happened & How do I fix it?

So I was trying to make a bootable Windows 7 USB following this guide: http://bootableusb.net/create-windows-7-bootable-usb-using-ubuntu/ Everything seemed to be working fine, and then after 1 hour, ...
0
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0answers
15 views

the whole system almost idle for 5second,

sometimes,I access the internet by firefox 46,the whole system almost idle for 5second ,after that back to normal. it occours occasionally ,how can i do and report it??
0
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0answers
54 views

My localtime is wrong after installing Ubuntu 16.04 LTS

I installed Ubuntu 16.04 on March. After login in first time it was 4 hours wrong, on the second installation it was 8 hours wrong, now I installed Ubuntu 16.04 LTS a third time and system time is ...
0
votes
0answers
27 views

System backup and Restore

I have been keeping a backup of my linux ubuntu on a usb. I unisntalled wps office and now because wps has removed it from online I cannot reinstall. Therefore I restored a previous backup where I had ...
0
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0answers
15 views

syncookies disabled despite setting in sysctl.conf

Using Ubuntu 14.04.4 with Unity desktop. I've tried setting net.ipv4.tcp_syncookies=1 in /etc/sysctl.conf, but after booting it is set to 0 (checked using cat /proc/net/ipv4/tcp_syncookies). What is ...
0
votes
0answers
18 views

Understanding the reason behind a freeze using system logs to file bug

My Ubuntu laptop just froze a few minutes ago (like it is frequently doing) making me reboot it using the hardware forced way. I would like to know the cause behind it so that if necessary I can file ...
0
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0answers
25 views

Bug on Ubuntu 14.4

I have a bug on Ubuntu 14.4 which a[ways end with the dreaded: Errors were found while checking the disk for / or: Disk drive for /temp is not ready after about 2 weeks from which I cannot recover. I ...
0
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0answers
36 views

How to recover last journal on ext4 file system?

In this scenario user accidentally delete (shift+delete) files. Which is the best method to recover journal of ext4 /dev/sda1 partition of disk ?
0
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0answers
82 views

Ubuntu 16.04 install freezes at hardware configuration on HP Pavillion DV8125nr

I've tried many different routes to install by DVD but each and every time the farthest the install gets is to the hardware configuration phase at about 80-90% completion. I've checked all the usual (...
0
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0answers
3k views

Ubuntu 16.04 running very slow [system spec]

Lenovo 100s 14" Memory 2 GB Processor Intel Celeron 1.6 GHZ x 2 Graphics Intel HD Graphics (Cherryview) 64 bit Any idea why Ubuntu 16.04 is running terribly slow on this system? I converted from ...
0
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0answers
44 views

General protection fault

Since yesterday I was receiving General Protection Faults errors (2 IIRC) like this I don't know if it's related, but yesterday, just an hour or so before the first crash, I've installed the ...
0
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0answers
13 views

System Crashing

I have been trying to install pure data 'pd-extended' and I got this error: unknown error:<clas 'SystemError''>'(E:Malformed line 58 in source list/etc/apt/sources.list.(distparse))'.This ...
0
votes
0answers
17 views

Trying to fix no-audio now no system center icon

I began trying to fix a no-audio issue then lost the system center icon. I have implemented all suggested fixes on this thread with no result. The last situation is this: bill@bill-Precision-...
0
votes
0answers
15 views

Extreme lag on first boot after installation

Month's ago, i tried install ubuntu 64 bit in my laptop and its work fine, and then i tried linux mint 64 bit its work fine too. But recently i have tried to install ubuntu 14.04 64 bit, but this ...
0
votes
0answers
34 views

launch xkill from icon?

While alt-F2 will allow me to launch xkill, how do I add an icon for that in the dock? I'm not using the Gnome panel. Using Ubuntu unity, 15.10, wily
0
votes
0answers
54 views

Can I share file on adhoc network?

I've installed vsftpd and samba after that I created an adhoc connectivity on the Ubuntu. Then i got 10.42.0.1 as the host IP. I connect my mac to the Ubuntu adhoc. And when I open ftp://10.42.0.1 ...
0
votes
0answers
16 views

Why does ubuntu seem to be running in safe mode?

New to linux. finally got ubuntu 15.10 installed but after lots of screen flickering and many restarts the desktop only seems to be running in some sort of safe mode.Can anyone suggest how to diagnose ...
0
votes
0answers
17 views

System Testing doesn't work

My OS is Ubuntu 14.04 LTS and I have a HP Pavilion dv6500. Every time I launch System Testing, it breaks after an hour of use (I cannot precisely tell in which test it breaks). It restarts my PC and ...
0
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0answers
37 views

Google Chrome Crawl/system hog on Ubuntu 15.10 desktop

I finally upgraded my desktop to 15.10 from 15.04 during Nov '15 with excitement only to be continuously disappointed as Google Chrome seems to 'hog' the system, make browsing really slow* with ...
0
votes
0answers
12 views

Linux Syscalls mechanism - exit function

I am trying to understand linux syscalls mechanism. I am reading a book and it in the book it says that exit function look like that(with gdb): mov $0x0,%ebx mov $0x1,%eax 80 int $0x80 I understand ...
0
votes
0answers
42 views

System hangs frequently Ubuntu 14.04

I am using a Sony VAIO VPCCB35FN with 500 GB HDD, 4GB RAM, I5 processor and 1GB AMD RADEON Graphics card. I was dual booting my system with windows 7 and Ubuntu 14.04. I recently removed Windows and ...