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

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12
votes
4answers
13k views

Find (and reinstall) packages with corrupted files (without breaking anything)

I usually prefer to fix a Linux system than to reinstall from scratch. My computers have seen many distribution upgrades and a list of PPAs or third-party repositories. APT usually makes sure that ...
2
votes
0answers
253 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 ...
0
votes
0answers
23 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
votes
0answers
14 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
votes
0answers
25 views
0
votes
1answer
110 views

X.Org Nouveau display Ubuntu 16.04

Im running Ubuntu 16.04 on my Asus G55VW 15" ROG Laptop. When i use the X.Org driver which is default my system runs fine, ive got a hdmi port and screen which has a naitive res of 2560x1080 which is ...
5
votes
4answers
19k views

Very large log files, what should I do?

(This question deals with a similar issue, but it talks about a rotated log file.) Today I got a system message regarding very low /var space. As usual I executed the commands in the line of sudo ...
0
votes
0answers
46 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 ...
2
votes
1answer
983 views

How to avoid someone using the “sudo” command to get unauthorized root access to my computer?

After understanding, what 'sudo' command does, I want to protect my computer from someone who wants to use this command for illegal purposes.
0
votes
1answer
14 views

Ubuntu 15.04 is slow after startup

In my laptop I'm using Ubuntu 15.04 and it's core i3, but the system is slow even when I open firefox, chrome and webStorm. RAM is 4Gb. Sometimes cpu1 and cpu2 usages are getting higher.. What can ...
1
vote
1answer
30 views

Possible MySQL error occurred during system upgrade

Run on terminal the command sudo apt-get upgrade. After a few seconds appears this: Errors occurred while processing: /var/cache/apt/archives/mysql-server-5.5_5.5.49-0+deb8u1_amd64.deb E: Sub-process ...
1
vote
1answer
8k views

“i8042 no controller found” error while trying to install ubuntu on Mac Book Pro early 2011

Trying to install ubuntu with rEFInd on a mac book pro 15 early 2011 model. "i8042 no controller found" error comes up and prevents installation. I have read the other answers regarding the topic but ...
0
votes
1answer
16 views

How to recover Formatted system files data windows 7?

I was installing new version of windows as win 7 nd i mistakenly formatted drives of my system. Previousy four drives were there but now only one is displaying for installing. As i am unable to boot ...
0
votes
1answer
24 views

which system command should i use to get the desired output given below

I need to write a system program that imitates who and w.Print the time since login(in the form HH:MM:SS)and the host name. Allow for a command line option -p that also prints the interesting ...
0
votes
0answers
781 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 ...
-1
votes
1answer
21 views

Lubuntu keeps on installing as if it is in a loop

Why does Lubuntu keep on installing? Goes into a loop. Gets to the point where is says you must reboot now. I click the reboot button and lo and behold, it starts installing again. What must I do? I ...
-1
votes
0answers
93 views

System Freezing

I have Ubuntu 14.04 LTS. It randomly freezes, and I am unable to use the keyboard or mouse. The only way I have found to correct the problem, is to hard reset the PC, and then turn it back on. It will ...
17
votes
3answers
48k views

What is the systemctl equivalent

I am converting a package from .rpm to .deb using this tutorial. However, to test and debug the application I need to run it. The programs readme explains to run it as a service with: systemctl ...
0
votes
2answers
54 views

Is there a “variable” to see if computer is in sleep mode?

Is there some variable in Ubuntu (14.04) that could be read in bash script to know in which mode the computer is (active/sleep/suspend)? If yes, is it possible to see also for how long is it current ...
1
vote
2answers
5k views

How to force quit out of an infinite loop in a bash script gracefully

I wrote a bash script that logs keycodes in a simple file. I have put the code in a while loop because I want it to log continuosly. But if I run the bash script in the terminal, the cursor just keeps ...
0
votes
1answer
36 views

Permission denied(public key) in ssh while installing iotivity

When I run ssh gerrit.iotivity.org, I get permission denied(public key) error. Before this, I run the following command: ProxyCommand nc -X5 -x <proxy-address>:<port> %h %p with my ...
1
vote
0answers
39 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 ...
0
votes
0answers
30 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 ...
3
votes
1answer
2k views

Unable to find a medium containing a live file system with boot from iso

Unable to find a medium containing a live file system: reset/press Shift/c (command line) grub> insmod iso9660 grub> loopback l (hd0,6)/lubuntu-12.10-desktop-i386.iso grub> set root=(l) ...
0
votes
1answer
69 views

This requires installing packages from unauthenticated sources

This could be a duplicate, but nothing works. I'm updating this Updates and get this error in sudo apt-get update W:GPG error: http://download.opensuse.org Release: The following signatures ...
1
vote
1answer
145 views

14.04 High Load Average - but no CPU

I've got as system with 6 hperthreaded cores and 64Gb of RAM, just stood up 14.04 wit KVM, and I'm seeing load averages above 50, with only a VM install going on. NO high CPU, NO high I/O, just crazy ...
0
votes
2answers
35 views

How can I change the system font?

I googled and I got nowhere- the unity tweak tool doesn't show the font I installed (that I really, really, want) Can anyone help? The font name is Raleway
0
votes
1answer
94 views

mkdir: cannot create directory ‘/media/virtualCD’: Read-only file system

I just want to create a simple folder in root directory but I face this message: mkdir: cannot create directory ‘/media/virtualCD’: Read-only file system. I appreciate your help in advance.
1
vote
1answer
26 views

missing letter in between words on every application and system

I just installed Ubuntu Studio 14.04.4 64 bits and a lot of my applications either the name of it or the function name went missing, example: Trash, it only shows h, when I selected it a few times ...
0
votes
1answer
22 views

Send programs from ubuntu partition to mint partition

To begin sorry for my bad English (I speak french). I had some problems from my Ubuntu system and for this I'm going to install Ubuntu mint on another partition to keep safe my data... And I want to ...
1
vote
0answers
29 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 ...
0
votes
0answers
12 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 ...
-1
votes
1answer
37 views

How to start a application when system boots up? [duplicate]

I have an application which I was running by using ./cmd from the directory where it is located. Now what I am looking for something by which the application starts automatically when my system boots ...
0
votes
1answer
19 views

System Monitor with data logging

Is there some application that allows system monitoring with value logging ? Most of system monitor application usually shows current system usage (CPU/RAM/HDD/NET etc) with (sometimes) small history ...
-1
votes
1answer
40 views

Unstable system when low disk space

When I tried to fill the system disk to full (100Mb and less space remaining), I noticed that Ubuntu is quite unstable, for example when I open the System Monitor, it doesn't open, only blink; or when ...
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: ...
0
votes
1answer
4k views

how to install robomongo ubuntu system please let me know

I am using monogodb and I want to install robomongo, How can I install robomongo on ubunto by command base. Please help me
0
votes
0answers
14 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 ...
1
vote
1answer
47 views

how can I override priority between paths of /bin and /usr/local/bin?

Today I wanted to run ss -tpla command to see network connections, to my surprize I got error: unknown option -t. Then I checked location of ss command: ~$ whereis ss ss: /bin/ss /usr/local/bin/ss ...
0
votes
0answers
30 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
14
votes
7answers
72k views

GConf Error: No D-BUS daemon running?! How to reinstall or fix?

After installing Konquerer and restarting my laptop i got the following error while trying to open, edit or access files as root from within Terminal (which is existencial for me). ...
0
votes
0answers
50 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 ...
5
votes
1answer
145 views

How do I know if I'm using a GPU?

How to find out in Ubuntu (14.04) whether the processor has a GPU or not? I went through a few links and the results are as given below for my system specs. $ lspci | grep VGA 00:02.0 VGA compatible ...
4
votes
2answers
1k views

Can system event sounds be assigned in Ubuntu 14.04, rather than the default system sounds?

I was wondering if there is a way to use custom system event sounds in Ubuntu 14.04? The only settings available in the System Settings → Sounds tab is the default theme. If so, must this be ...
1
vote
2answers
32 views

File system goes read-only when using file explorers

I have a problem with my 15.10 system and it goes as follows: When using Nemo or Nautilus (these are the two I've tried) works fine as long as I explore my home directory only. Visiting 'File ...
0
votes
0answers
14 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
1answer
14 views

Include apt.history.log in systemlog

I am trying to find a way to Include apt.history.log in the systemlog so the logs will automatically be sent to a remote centralized log server I have running. But is this something there is ...
0
votes
0answers
13 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 ...
1
vote
0answers
112 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, ...
0
votes
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 ...