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

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86
votes
12answers
131k views

System Monitoring Tools For Ubuntu

I am looking for System Monitoring tools which are GUI and Cli or Web Based which include Basic Functions such as CPU Usage Ram Usage Swap Usage Disk Usage ( Space / I/O ) Heat Monitoring I know ...
49
votes
1answer
36k views

What are “/run/lock” and “/run/shm” used for?

I just want to know where and how /run/lock and /run/shm can help our PC . $ df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 56G 13G 41G 24% / udev ...
138
votes
1answer
95k views

Differences between /bin, /sbin, /usr/bin, /usr/sbin, /usr/local/bin, /usr/local/sbin [duplicate]

I'm running an Ubuntu Server 13.04, but I see the same on a 12.04: I have six directories with command files. These are: /bin /sbin /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin What are the ...
12
votes
4answers
14k 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 ...
6
votes
4answers
21k 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 ...
17
votes
4answers
55k views

Whats the difference between Unix, Linux and Ubuntu?

What is Unix, Linux, Ubuntu? Are they the same thing or different versions or completely different stuff? This has always made me confused, any explanation would be great.
20
votes
1answer
28k views

Where are passwords saved?

This is a weird question to ask, but where are the passwords saved? I mean they must be somewhere for comparing every time. So where are system and network passwords saved?
73
votes
3answers
39k views

Dropbox error - 'echo 100000 | sudo tee / proc/sys/fs/inotify/max_user_watches'

Dropbox gives me an error that mentions echo tee 100000 but then it disappears. How to fix or remove msg?
7
votes
3answers
5k views

How can I can clone or ghost my system drive to restore it to a bigger HD?

How can I can clone or ghost my Ubuntu System drive to restore it to a bigger HD? Something like Norton Ghost does with NTFS or FAT on Windows.
5
votes
2answers
5k views

How to see what's going on during shutdown

Since a few weeks, Ubuntu freezes almost everytime when I shut it down. I know it because the shutdown animation stops and nothing is responsive: Ctrl+Alt+Del or AltGr+Syst+reisub don't make any ...
1
vote
1answer
311 views

Skype window problem in Ubuntu 14.04

Skype app in my Ubuntu system work perfectly. But today when I run the app, I see this: How Can I fix this?
13
votes
1answer
7k views

Is there a way of leveling/compressing the sound system-wide?

As a Laptop user, I'm sure that a lot of people, even the ones using Netbooks would have already gone through this problem. Especially when listening to podcasts, and using it as an example, the sound ...
16
votes
7answers
74k 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). root@linuxBox:/...
13
votes
6answers
88k views

How I do a system restore?

Problem I Faced I installed something that crashed my Wifi drivers that I compiled earlier. Un-installing the same package doesn't helped. Finally, I re-compiled my wifi drivers and things are good. ...
9
votes
3answers
2k views

Will Ubuntu One support OS Settings sync?

Being new to Linux and to Ubuntu, I've taken quite some time to tune it to my needs on my netbook. As I'm now convinced by the OS, I plan to install it on my desktop in the next few days. I was hoping ...
12
votes
2answers
5k views

What are the disadvantages of having a dot in a user name?

A student just asked what could be the downside of having a dot (. ) in the name of the user. For example: john.doe How will this affect the system or any apps for that matter?
7
votes
2answers
9k views

Appropriate size for / root partition

I'm about to re-install my system. I like to keep a separate /home and / root partitions. I've been using (K)Ubuntu for around a year now and my / partition (almost 36Gb) never climbed over ~13Gb of ...
6
votes
3answers
8k views

System Program Problem Detected

I have Ubuntu 12.04 LTS, fully up-to-date. I'm new to Ubuntu. Whenever I start my system I face "System Program Problem Detected." Why is this happening? I ran sudo rm /var/crash/* but it again ...
0
votes
2answers
7k views

best way to backup a whole dual-boot system [duplicate]

Possible Duplicate: How to make a disk image and restore from it later? I finally have my PC exactly the way i want it, i have spent many hours installing and reinstalling Ubuntu and Windows, ...
8
votes
0answers
2k views

Is there a system-wide equalizer for PulseAudio or ALSA? [duplicate]

Possible Duplicate: Is there any Sound enhancers/equalizer? I often want to tweak the sound quality, but have found no other way than to install plugins for each piece of software. ...
2
votes
3answers
503 views

How to prevent automatic hibernation while watching videos?

I have my settings to hibernate after 20 minutes and after 5 minutes it kicks into hibernate even when I'm watching a movie. I'm a complete newbie with Linux. I have Ubuntu 14.04 and my computer is a ...
1
vote
1answer
3k views

Lost 'System Settings' on Ubuntu Precise Pangolin x86_64

I am new here. I was facing issues with emacs-snapshot sourced from a PPA, so I tried following these instructions (blindly =/), and sudo apt-get remove `apt-cache search emacs | awk '{print $1}'` --...
0
votes
3answers
1k views

Installed Ubuntu with WUBI, how can I completely remove Windows Vista?

I just installed Ubuntu 12.04.1 yesterday, and I'm happy with how it's working. I think I installed it as a dual system though, because Ubuntu and Vista shows up when the system boots up. I ...
17
votes
6answers
8k views

Ubuntu desktop suddenly points to home folder

As of now, my desktop has begun showing the contents of my home folder (~) instead of the contents of ~/desktop. I must have changed something, but I have no idea what, or what I was doing exactly ...
10
votes
3answers
19k views

Security camera system server

I'd like to setup a Security Camera system which is captures and stores video streams into Ubuntu Server From 2 wireless Cameras. Which type of motion-detecting wireless camera you suggested? Are ...
19
votes
3answers
54k 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 ...
12
votes
7answers
21k views

How to make my proxy settings change depending on the network I connect to?

My company's corporate network requires me to set a network proxy to access the net, but when I am anywhere else, I don't need it. The proxy settings in Ubuntu (System -> Preferences -> Proxy server) ...
2
votes
2answers
19k views

System Testing tool for Ubuntu

I want to test my hardware function and find errors. Is there any System Testing tool available for Ubuntu ?
7
votes
1answer
5k views

How can I access system mail in /var/mail/ via thunderbird?

I've got cron jobs sending mail to my user at /var/mail. I know how to access that at the command line with the mail command. But, while a big command line fan, I do not like reading mail (even system ...
5
votes
1answer
1k views

How to disable hibernating?

Whereas many questions are geared towards implementing hibernation, mine is how to disable it. I've just encrypted my swap partition, and I such my system can still hibernate, but cannot resume ...
6
votes
2answers
4k views

How to mount all partitions at system startup

Hello I searched for this query(mounting all partitions on system startup) and found answer near to it. I added this command to startup applications "/usr/bin/udisks --mount /dev/disk/by-uuid/...
5
votes
2answers
9k views

System log error when running Firestarter configuration program

Running latest Ubuntu ver. 11.04. Using Firestarter firewall configuration (ver.1.0.3). When Firestarter is run, an error message is returned, "Failed to open the system log. No event information will ...
0
votes
3answers
6k views

Is there a way to reset Windows XP administrator password? [closed]

Can I reset a Windows XP administrator password? How would I do it?
4
votes
2answers
937 views

proxy authentication in system settings but with a twist

We have a password policy that enforces the users to use special characters in their passwords. Hence some passwords will be Gt4@gj#k for example. Now to specify the system wide proxy settings (Why ...
4
votes
2answers
2k views

Accidently deleted /usr/lib, how do I restore it?

I know this is something I shouldn't do, but it happened(Ubuntu 12.04.1 LTS) as a root user I deleted /usr/lib folder. Any ideas how to restore it?
4
votes
3answers
10k views

How to change input language?

I want to be able to switch between my input languages, but I can't drag and drop the languages in language support because the languages seem to be greyed out, what should I do?
3
votes
2answers
8k views

Got problem with installation. “No root file system is defined.”

I'm very new with Ubuntu and generally with linux. I saw ubuntu and it seems like this OS is really good and stable, and so I decided to install it alongside my windows 7 OS. I have a few problems ...
3
votes
1answer
966 views

Grub won't load Windows 7 (unknown file system)

I recently installed 11.10 on a new partition on my Windows 7 PC, and it works perfectly. But when I want to boot Windows 7 from the grub boot menu, it just says unknown file system, grub rescue. ...
2
votes
1answer
122 views

Update has caused my system to start in text mode

Tonight My system informed me of an update, having preformed the update I was asked to restart the system. Now on start up I'm now presented with the linux console, asking for my user name and ...
2
votes
1answer
322 views

Screen turns off without reason

The precise problem The screen turns off the display suddenly, and does not respond to the mouse or keyboard. What actually happens?? When I am working on my PC (OS - Ubuntu 14.10) suddenly without ...
2
votes
0answers
169 views

“System Program Problem Detected” [duplicate]

Possible Duplicate: How do I enable or disable Apport? I have Ubuntu 12.04 LTS and it started showing "System Program Problem detected". I think it could be because my Windows is corrupt and ...
1
vote
1answer
9k 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 ...
1
vote
1answer
56 views

What is the release schedule for Lubuntu Alternate patch releases?

The Lubuntu Alternate ISO does not always get released simultaneously with the rest of the ISO's. For example, according to TrustyTahr/ReleaseSchedule, as of April 30th, 2015, the following releases ...
1
vote
1answer
49 views

disable a key on an OS level

I have a volume control wheel on the bases of my laptop which I always spin by mistake. When spun, the letters 6 ~ start to pop up in rapid succession. Annoying as this is, when in my vim environment,...
0
votes
2answers
305 views

What does it mean when there is a path like /dir/dir/program.attribute?

In the question above i was trying to pose an example. I don't know how effective I was in doing so... I just want to understand how there can be what appear to be "hidden" files that exist. Are they ...
0
votes
1answer
165 views

Install 14.04 seems frozen at any questions screen

Installing ubuntu 14.04 seems frozen at the "any questions?"logo. The little circle thing is still going around, but I can't tell if it is doing anything. Does it take a long time to erase the old ...
0
votes
0answers
190 views

Upgrading Ubuntu 15.10 error

Hi guys this morning i tryed to upgrade my system, from Ubuntu 14.04, but I can't complete the operation because I found this error, can someone help me? The upgrade has aborted. Your system could be ...
0
votes
1answer
142 views

how to increase ubuntu's performance(overall)

I have a 1Tb hdd(internal in laptop) which I have divided in 750Gb (windows partition) and 100Gb ubuntu partition , my ubuntu OS is quite dull(over all performance including boot and multitasking) ...
-1
votes
1answer
117 views

Where should I put newly build software? [closed]

I have been curious for a long time about software installation in Linux (Ubuntu). Because I am so used to Windows OS, every software is installed by some sort of 'wizard', usually I don't need to ...
-2
votes
1answer
5k views

Trying to install Ubuntu 14.04, monitor says mode unsupported/out of range [duplicate]

Monitor says mode unsupported/out of range during installation of ubuntu 14.04 and never boots to the ubuntu desktop.