Ubuntu is a Linux distribution with an emphasis on ease of use and installation. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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Unable to install Ubuntu

I'm tying to install a fresh Ubuntu 15.10 distro on my laptop. I boot my pc from the usb with the Ubuntu installer, On the GRUB menu, I select test without install, but when it reachs the screen where ...
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7 views

Cinnamon DE - View all global key bindings?

I'm using Cinnamon 2.8.6 on Ubuntu 16.04. How do I identify which process is grabbing a hotkey or combination shortcut? I tried How do I find out what program 'owns' a hotkey?. However, ...
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58 views

Being Prompted for Password After Already Registered Public Key On server

NOTE: This is not a duplicate to the popular question. Why am I still getting a password prompt with ssh with public key authentication? I had an original post but I did not get much answers helping ...
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1answer
1k views

XBMC crash after selecting “play”. Ubuntu 14.04 and 13.0 gotham. Link to crashlog

I have a brand new machine with fresh install of Ubuntu 14.04 and I'm trying to run Gotham 13.0 on it. I've already added the restricted multimedia codecs (just in case) to Ubuntu. sudo apt-get ...
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1answer
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+250

GRUB confuses kernels/initramfs of Ubuntu and Arch Linux installation

I have a machine that used to dual-boot Ubuntu (16.04 currently) and Windows 7, with Ubuntu's GRUB as boot loader. Now I just added Arch Linux as third OS, following the official installation ...
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1answer
8 views

Music Player Daemon MPD - Lagging HTTP stream

HTTP stream from my MPD lags, i.e. audio from Pulse and HTTP output are not in sync, with HTTP output lagging Pulse. This also means that starting/pausing/stopping music from MPD is not reflected ...
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15 views

I'm able Start Service With init.d script, however doing service <service name> start does not work

I'm able to start a service with an init.d script, however doing service <service name> start does not work. For e.g. /etc/init.d/haskal start, the service is starting fine and service haskal ...
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10 views

Qemu/KVM, windows guest password prompt

Ubuntu 16.04 Qemu/KVM Windows 8.1 guest SSH from remote host into hypervisor, run virt-manager. Get prompted for creds: user1@hypervisor, authenticate successfully. Open guest, get prompted for ...
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3answers
11k views

Is there a way to write a script to do ftp login so I don't have to type things over and over again?

I am recently working extensively with a remote system via ftp connection, since the session time is so short that I have to re-login quite often when I finish my work on my local machine, so I need a ...
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2answers
2k views

Need to auto-login after logout on ubuntu

I've set up a kiosk using Ubuntu 12.04, and I'd like to have it autologin after a user logs out or if the screen locks, in case someone manages to get back to lightdm or tries to login to the ...
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1answer
129 views

Run Lua commands in Awesome window manager

I need to have network widget in my Awesome manager. When I placed in very bottom of rc.lua line awful.util.spawn("nm-applet") my Awesome was not starting until I have removed it. What is wrong ...
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Trouble Boot repair

I had a problem with my grub, it didn't recognize my OS, I have installed windows, ubuntu and kali. I tried to use Boot repair in a ubuntu live cd as sudo chroot "/mnt/boot-sav/sda10" apt-get purge ...
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16 views

what is difference between .deb pakage file and ddeb pakage file in linux

I need to install SystemTap in Ubuntu 14 and i would need to install debug symbols for kernel i encountered ddeb file how i could uninstall this file after installation ? i got ERROR: Build-id ...
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2answers
22 views

Ubuntu 16.04, drive path changed on its own [duplicate]

So yesterday I had a grub issue that required me to comment out the other two drive sin my fstab that get mounted. 1. an ssd that houses my qcow2 vm. 2. a 1tb seagate So all I had listed was / and ...
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10 views

Permanent shrill sound on ubuntu since buggy vlc video

A video with a buggy, or at least too complex soundtrack broke my Intel Ivy Bridge (i5-3337U) laptop running Ubuntu 15.10. In the middle of VLC playing the video, a shrill, slightly grating sound ...
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1answer
43 views

Designing a new Operation System

I want to design a new OS to learn more about how an OS works. This OS is only for educational purpose and I had a few doubts choosing its kernel. Is there any legal issue for using an Ubuntu ...
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0answers
11 views

Qemu/KVM assign usb input devices to VM

So I have an Ubuntu 16.04 host running Qemu/KVM and a Windows 8.1 guest. I have successfully gotten the guest to use both a dedicated video card and dedicate monitor.. however I cannot figure out the ...
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2answers
831 views

How to check from terminal if any GUI installed in UBUNTU

I'm looking for command to check from terminal, is any GUI installed to my UBUNTU. I couldn't find any satisfying answer
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2answers
65 views

Ubuntu 16.04 Emergency boot mode

So this rigs been running fine for a week now, (fresh build, new mobo/ram/cpu/hdds/etc) Anyway last night I remotely rebooted this machine then I came in today to be greeted by an Emergency Mode boot. ...
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2answers
5k views

How to edit /etc/fstab when system boots to read only file system?

I'm on Ubuntu 14.04. I pasted something incorrect (from a tutorial) into my /etc/fstab file. As a result, the root file system will not mount when the machine boots up. I know what needs to be fixed ...
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0answers
21 views

Unable to use USB sound card with ALSA programming

I am trying to decode LTC data from an audio source coming to my USB sound card. For this I download sample program from this link. As jltcdump.c file use audio card 0 as defualt, so I make USB sound ...
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1answer
1k views

org.eclipse.swt.SWTError: No more handles [gtk_init_check() failed] while running spoon.sh in ubuntu

When I am running spoon.sh file in Ubuntu I am getting the following error: [santosh@sbx data-integration]$ ./spoon.sh /home/decathlon/Pentaho-5.0.1/data-integration org.eclipse.swt.SWTError: No more ...
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1answer
11k views

E: Some index files failed to download. They have been ignored…” when tunning “sudo aptitude update”?

This is what the end of output after I run sudo apt-get update on Ubuntu 12.04: Ign http://apt.typesafe.com unicorn/main Translation-en 35% [Working]W: Failed to fetch ...
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0answers
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How to use xpra like xvfb-run?

xvfb-run allows me to open a display and run a graphical app and when the app finishes xvfb closes too. for example xvfb-run --auto-servernum --server-args="-screen 0, 1920x1080x24" nw script.js ...
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26 views

cat tty freezes the system while I can observe tty through screen

So I have been subject to this weird behaviour. A few days ago I could read my GPS data on Beaglebone Black (latest Debian) on ttyO4 using cat /dev/ttyO4 But since yesterday whenever I try this ...
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0answers
5k views

“Makefile:29: recipe for target 'siplib.o' failed” - SIP installation [on hold]

I'm trying to install SIP 4.16.5 for Python 3.4 on Ubuntu GNOME 14.10. I type python3 configure.py and I get the following: This is SIP 4.16.5 for Python 3.4.2 on linux. The SIP code generator will ...
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1answer
834 views

grub partition error

This is the first time this has happened to me.I don't use linux on a regular basis, except for some project work. I had logged in today , finished my work and restarted it so I could go into windows ...
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1answer
4k views

mei 0000:00:16.0: init hw failure

When I boot up I get the following errors: mei 0000:00:16.0: init hw failure. mei 0000:00:16.0: initialization failed. (they don't prevent the bootup, I'm just curious as to what they are and if ...
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0answers
182 views

Fatal error in MPI (rank 1 PID 13862)

I am running a program in a server with Ubuntu 3.16 that requires to specify the number of node and cpus per node to be used. It runs with mpirun. Some details about the server first: Architecture: ...
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1answer
71 views

no able to install packages as wireshark

Since a month, I can not download package of Ubuntu Software 14.10 This is really annoying. I try to type the command : sudo apt-get update But I have this result: Ign http://extras.ubuntu.com ...
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What is the problem with the option name in Ubuntu?

oneimage create --name "ubuntu 14.04" \ --path "http://releases.ubuntu.com/14.04/ubuntu-14.04.4-server-amd64.iso" \ --driver qcow2 \ --datastore default I am getting invalid option for --name. I am ...
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55 views

How can I fix the duplicate mouse error without logging out?

I sometimes get to see something like this: When I take a screenshot, it looks like this: As you can see, I actually have two mouse cursors + the remainder of a drag-and-drop action on my ...
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1answer
7k views

Can't start Tomcat on Ubuntu

I installed Tomcat on Ubuntu. Then I created a new user. Then did: liferay@web-svr:~/liferay-portal-6.1.1-ce-ga2/tomcat-7.0.27/bin$ chmod +x *.sh Afterwards, I added JAVA_HOME and PATH in bash like ...
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1answer
2k views

rsync error: Time value of file truncated on receiver

I run the following rsync command to back up my data. I am on Ubuntu 12.04. rsync -rt --delete --links --exclude-from '/home/john/rsync-exclude.txt' /media/data/ server:/backup/data The data ...
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49 views

Ubuntu file system corruption error won't boot

my digital ocean droplet is going through some tough errors and I can't find any help. Perhaps someone here could point me the way. I was using the droplet normally, after running a failed DeployBot ...
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2answers
2k views

Xvfb -screen --> Cannot establish any listening sockets - Make sure an X server isn't already running

I wonder, why isn't this working? $ screen $ Xvfb -screen :1 1024x768x16 & [1] 17540 $ _XSERVTransSocketINETCreateListener: ...SocketCreateListener() failed _XSERVTransMakeAllCOTSServerListeners: ...
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1answer
280 views

No such file or directory java while executing script

I have to install a program. When I run this command: sudo ./Vivado-Hardware-Server/xsetup I get the following error: ./Xilinx_HW_Server_Lin_2015.2_0626_1/xsetup: line 67: ...
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185 views

How to fix the error warning failed to connect to lvmetad no such file or directory falling back to internal scanning in ubuntu 15.10

I need help with my Ubuntu laptop which was working fine until recently. My desktop disappeared and all the desktop icons are gone. All I have access to is the terminal. In an attempt to fix the ...
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113 views

libkmod: ERROR ignoring bad line starting with 'snd-hda-intel'

At booting I started getting the following error in Ubuntu 14.04. libkmod: ERROR ../libkmod/libkmod-config.c:686 kmod_config_parse: /etc/modprobe.d/alsa-base.conf line 44: ignoring bad line ...
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1answer
136 views

An error occurs when I try to install ROOT

I' using Ubuntu 14.0. I want to install root. So I followed the instructions: https://root.cern.ch/building-root I'm stuck in the fourth step. I downloaded and unpacked ROOT in the directory ...
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94 views

How to configure Mate to automount a disk despite kernel errors?

I am attempting to connect a Marantz Professional sound recorder over USB to a Raspberry Pi running Ubuntu Mate 15.10. The sound recorder should mount as a USB disk. I am receiving buffer overflow ...
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2answers
47 views

Shrinking Raspberry Pi SD .img via Ubuntu Server (cli)

I installed Raspbian to a 16 GB card and expanded the filesystem. When I made a dd backup of the card, the .img file output was ~16 GB. Most of it is unused space in the ext4 partition—I'm only using ...
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1answer
1k views

ActiveMQ doesn't start on Ubuntu 14.04

One of the packages which seems to be plagued with problems is activemq. After installing it, it's necessary to enable one of the queues with a simple symlink: sudo ln -s ...
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52 views

“No space left on device” when trying to copy small folder to an external drive with alot of free space

I have an Hitachi XL1000 1TB external drive. It shows around 300GB of free space, either via the file explorer properties or via df command. But I get an "Error creating directory: No space left on ...
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1answer
771 views

Accessing Macintosh HD from Ubuntu

So after I upgraded my MBP to Yosemite, I have lost dualboot. After a long struggle, I finally reinstalled refind to work properly. Unfortuantelly, when I use Ubuntu, I cannot access Macintosh HD ...
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1answer
37 views

Why can't I click between windows after Xenial (16.04) update?

I recently updated to Ubuntu 16.04 Xenial, and since then, I have been unable to click between windows. For example, I have a Chrome window up, open Sublime Text, and try to click Sublime (or Chrome) ...
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1answer
28 views

Ubuntu 14.04, computer freezing

I have a problem with my netbook, it freezes frequently at random. Then it makes crunching noises and nothing helps except pressing the power button. It happens every 1-2 hours or so, during me ...
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0answers
21 views

Puppet managed home directory

We use puppet to manage users in our production ubuntu servers and user home directory is managed by puppet. Until recently puppet was not removing the user home directory when an user is ensured ...
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1answer
7k views

How to fix error 'xrandr: cannot find output “VGA1”'?

I am trying to enable a HDMI connection to a monitor connected with a HDMI cable to my Lenovo laptop using the following commands. > xrandr xrandr: Failed to get size of gamma for output default ...
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3answers
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Is it safe to disable shell access to all users listed in /etc/passwd?

I have just read about how to disable shell access for users in Ubuntu in this post for security reasons. Is it safe to disable shell access to all users listed in /etc/passwd except the root:x:0:0 ...