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

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0
votes
2answers
359 views

change priority (nice value) of a program permanently

i am trying to change nice value to (-20) permanently for uget-gtk by using gnome-system-monitor. But when i end process and restart it again, nice value by default got (0). Is there a way to set ...
1
vote
3answers
8k views

Xubuntu 14.04 system sound not working?

There are no system sounds as far as I can tell and there is no option for setting this in settings. Speakers are working fine as I'm able to play Youtube Videos. Its a fresh 14.04 LTS install. All ...
0
votes
0answers
12 views

<No root file system> [on hold]

-No root file system- (when i try to install Ubuntu) I know that i don't have to ask a question about this problem because it is known! But my real problem is that i have a copy of Windows on my PC ...
0
votes
1answer
37 views

Login loop problem

Ubuntu 16.04 was working all fine yesterday today when I tried to login to desktop I stucked in loop login I checkex other solotions nothing helpt me But I noticed that when I boot in ubuntu ...
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 ...
0
votes
1answer
19 views

Ubuntu dont start ( Windows 10 already installed)

hope you can help me with this. I wanted to try ubuntu on my ACER laptop which already have windows10 . I have installed ubuntu with usb live cd with its partitions ( before i have reduced the size of ...
2
votes
2answers
8k views

How to “get” system proxy settings?

I want to set proxy in my system firefox from firefox that I use by VPN. in VPN's firefox in Preferences/Advanced/Network/Settings the checkbox "use system proxy settings" is checked. where are ...
15
votes
2answers
6k 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?
17
votes
5answers
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 ...
-3
votes
0answers
25 views

Does Ubuntu Touch support Lenovo or Redmi? [duplicate]

Can I dual boot Ubuntu Touch on a lenovo a6000 or Redmi Note?
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, ...
18
votes
4answers
58k 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.
0
votes
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
1answer
23 views

Please help, I can't access my pc after bad upgrade

as above my system has failed. I was using 14, when I was given the option to upgrade to 15. During the installation it froze, therefore I had no option but to restart. It now just boots to a basic ...
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
vote
1answer
17 views

Can't boot Windows without connecting external device that has Ubuntu installed on it

I made a Ubuntu bootable USB, let's call it USB A. I used this USB A to boot Ubuntu and install Ubuntu (with third party software) in my external hardware device (let's call it USB B) My notebook ...
0
votes
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??
3
votes
1answer
35 views

what does this mean for a module to have a bad taint?

When looking at the syslog (dmesg), I get several of: <module name>: module has bad taint, not creating trace events What does this mean ?
7
votes
4answers
22k 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 ...
2
votes
3answers
527 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 ...
0
votes
1answer
88 views

Missuse of chmod -R 777 ./ [duplicate]

I ran something like: sudo chmod -R 777 /. In my Ubuntu 16.04 LTS it shows many errors on display, but anyway, the damage was done. Now I can't use sudo sudo: error en /etc/sudo.conf, línea 0 ...
0
votes
0answers
25 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 ...
1
vote
1answer
74 views

Network Adapter & System Time Problems on my ROG GL552VX Laptop

Every time I first boot my new laptop into 16.04 LTS, and then reboot into Windows 7 (needed for my work), I get those 2 problems : 1) System Time gets a 2 hours difference in Windows (5.14pm under ...
4
votes
4answers
287 views

System monitoring with email notifications

I currently have an Ubuntu Server 16.04 LTS and I want to be able to receive email notifications with information about the resource usage on my server. CPU, memory, swap, you name it. I understand ...
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,...
2
votes
2answers
9k 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
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 ...
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 ...
2
votes
0answers
255 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
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
votes
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
votes
1answer
183 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 ...
0
votes
0answers
81 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
995 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
16 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
45 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
18 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
26 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
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 ...
-1
votes
1answer
23 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 ...
19
votes
3answers
58k 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
58 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
54 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
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 ...
0
votes
0answers
43 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
104 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
200 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 ...