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 boot windows after installing ubuntu 10.04

I have a new HP laptop. I have deployed windows 8.1 & ubuntu 15. Recently I removed ubuntu 15 and deployed ubuntu 10.04. Installation have been completed successfully. But after restarting the ...
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1answer
37 views

Resizing directories

I am not too familiar with how volume sizing works, but I have a VPS running Ubuntu 14.04, and I noticed the home directory is all used up. I have a 1TB drive on this machine, how can I allocate more ...
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0answers
41 views

using left mouse button to move window can cause freeze (XFCE4/Ubuntu 15.10)

I use xfce4 under Ubuntu 15.10. Fairly often some action with my mouse causes the cursor to change into the closed hand icon and my session freezes in a useless state. When this happens the cursor ...
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0answers
65 views

Easiest *non-networking* method of communication between Linux host and Windows guest [closed]

I'm writing application software for Ubuntu which needs to communicate with another application running in a Windows Virtual Machine via Qemu on the same machine. I have full control over the source ...
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0answers
56 views

X server can't open display in Ubuntu

I'm not very familiar with the X server display but I'm trying to use a debugger program called DDD and it needs X server to open up to use it. I get this error when I try to run ddd: Error: Can't ...
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0answers
17 views

remote osx split panes in ubuntu byobu

My Problem I have OSX 10.10, connect to a byobu in ubuntu 14.04 over ssh. I want to split panes vertically & horizontally. But ctrl+F2 & shift+F2 just gives me beep sound. Additional Info ...
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41 views

Noob with a Lenovo Y50-70 running Ubuntu 15.10 w/ Nvidia 960m not running or even showing up

Title says it all, i have tried using PPA's and bumblebee and the correct Nvidia drivers but nothing works. Any ideas would be great. Thanks
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0answers
16 views

Editing the lsb-release information

I would like to customize Ubuntu live CD and it's mostly done , but after changing the the /etc/lsb-release file , i can't add any new repository ! So , How can i change the lsb-release to have my ...
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9 views

Dual boot pre installed Kali 2

Salutations - I have Kali Linux 2.0 (jessie) installed as main OS. I want to install Windows 8.1/10 on dual-boot. The problem I am facing is in every tutorial, Windows is the pre installed OS. What ...
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1answer
50 views

udev creates the right rules, but rights disappear as soon as I try to access files via C++

I'm facing a really strange problem using udev. As I already explained here I'm trying to access some folders/files as a no root user Here are my udev rules for the gpio folder: KERNEL=="gpio*", ...
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26 views

How to route mail server from both intranet and internet?

We have a mail server configured in Ubuntu 12.04 with postfix, dovecot and roundcube. It has two interfaces, one with real IP and one with private LAN IP. Incase of intranet we have branches and head ...
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24 views

Need help determining why a usb device works in Ubuntu but not ChromeOS

I am troubleshooting a problem with an Epson Brightlight 536wi projector. When you plug a USB cable from the projector into a Windows or Linux computer there is a driver built-in to both Operating ...
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0answers
22 views

Ubuntu Gnome 15.10 super key mapping into Android Studio keymap

I am switching between OSx and Ubuntu Gnome (which is fantastic btw) and want to try and have the same shortcuts inside Android Studio. I am using a wired mac keyboard and CMD is default mapped to be ...
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0answers
28 views

How to use mail to send an email to my friend?

Firstly, I use command apt-get install mailutils on my Ubuntu14.04 system, and the terminal shows a dialog "Postfix Configuration", I choose the first option "no configuration". Then I try to use the ...
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1answer
27 views

No menu for VNC view

Problem: I have a VPS on linode that installed ubuntu 14.04. In the Real VNC viewer on my local machine, I see a screen like this. The problem is, although I can navigate the file system in this ...
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0answers
49 views

Ubuntu ethernet connection works for few seconds then drops (with Win 7 dual boot)

I've looked through other posts with similar issues but so far to no avail. I'm running dual boot with Windows 7 and Ubuntu 15.10 and although the Ethernet connection works on Windows, when I boot ...
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1answer
44 views

udev doesn't apply changes recursively

I'm working with a beaglebone black board (ubuntu release for ARM architecture), which has some general purpose input/output (GPIO) interface to read sensors/drive motors etc.. which are configurable ...
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1answer
46 views

Shared libraries and different linux systems

Is it possible to use a shared library, compiled for example on a RedHat / CentOS system, on a Ubuntu system?
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1answer
21 views

/var/log/rgc main.log very large file preventing server operation

The root partition on our Ubuntu server has just filled and the web portal no longer works. I tried locating the large file and discovered: /var/log$ du -h --max-depth=1 3.6M ./apache2 12K ...
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1answer
53 views

Auto-restart apache2 on crash with systemd(Ubuntu 15.10)

There is no apache2.service file on ubuntu 15.10. I want to restart apache2 if the apache2 process gets killed. For most services I can add a ... [Service] Type=simple ExecStart=/path/to/bin ...
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1answer
57 views

Installed OS on EFI system crashes on grub shell

I have installed an el6 based custom OS on an e-mmc drive. This machine doesn't have legacy boot mode, only EFI. The installed OS has grub-0.97-77.el6.x86_64.rpm. Using a rescue disk I can see that ...
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1answer
59 views

Installing OpenFlow inside Ubuntu error: glibconfig.h: No such file or directory

I'm trying to install OpenFlow in my Ubuntu machine. I'm following the steps in link. When I try to run these commands: cd utilities/wireshark_dissectors/openflow make sudo make install make ...
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2answers
27 views

Error: GOPATH not set

I am trying to download aws package from github, but I am getting the error... Cannot download, $GOPATH not set. For more details see: go help gopath GO PATH is currently set to $HOME/go Can ...
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1answer
43 views

Is there anyway to create a link that acts just like a shortcut?

I have Ubuntu 14.0.4 LTS. I have the following folder on my system: /opt/JBoss_4.0.4.GA/server/default/deploy Also I have this symbolic link to that folder on my Desktop: JBoss deploy -> ...
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0answers
28 views

bug in vim editing, caused by tab or diacritics?

I have the following line in a file (notice the tab in the beginning): $q = "select pl.id, pl.pltag tag, tf.nome família, tg.nome Gênero, ts.nome espécie, l.nome localidade When I try to edit ...
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14 views

What are the installed components when installing a video card driver?

what are the components/modules/software installed and where? (kernel/userspace) that are installed when installing a OS driver vs proprietary driver , for example on ubuntu unity DE to simplify ...
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1answer
40 views

Resize2fs doesn't extend my file system to the size of the partition

I have a 1 TB hdd but when I run df -h my root partition is only 888G big.Parted -l shows the following 3 32.2GB 1000GB 968GB primary raid mdstat shows this md2 : active ...
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43 views

fatal error: avr/io.h: No such file or directory compilation terminated

I am use 14.04 version of Ubuntu. Whenever i run AVR program this kind of error is generating "fatal error: avr/io.h: No such file or directory. compilation terminated". So, please someone help me ...
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1answer
38 views

How to start my own server as a service using systemd

I have written my own server in Qt with QtWebApp Now I want start that server on Ubuntu 15.10 startup using systemd I created this service file [Unit] Description=This service maintains a ...
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0answers
45 views

“at” jobs stuck?

I have a system that uses the at command to schedule simple commands to be executed later. The command in question uses a lock so that multiple commands started at the same time execute sequentially ...
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1answer
41 views

Is that possible to know the user that installed a spcify package?

I don't feel easy with Unix package tools, and I wonder whether it is possible in Ubuntu to list all installed packages, and see the users that installed them ?
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13 views

problem locating module in ubuntu, visible through Anaconda but not accesible

I have Ubuntu 12.04. I have installed Anaconda3 latest version. It has python3.5 which is default for the system now. Some of the programs require using python2.7 which I invoke as follows ...
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1answer
16 views

Login incorrect when trying to login to VSFTPD

I'm setting up a new linux server and have installed VSFTPD. I can login to FTP fine using the root user, but not using my new user "AMP". I'm using the same password I'd use to login as AMP in SSH so ...
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0answers
47 views

Symbol lookup errors in (Qt?) dynamically linked libraries

I'm using Ubuntu 15.10 Problem: For some days now I have been getting Errors like this when opening some applications: /usr/lib/x86_64-linux-gnu/libpoppler-qt5.so.1: undefined symbol: ...
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0answers
121 views

Ubuntu 15.10 Desktop x86-64 Enabling manual login leads to “The system is running in low graphics-mode”

I prefer manual login in both Windows and Linux. With past Ubuntu releases, sudo sh -c 'echo "greeter-show-manual-login=true" >> /etc/lightdm/lightdm.conf'achieved this perfectly. Now, with ...
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1answer
18 views

tmux reEnter to a session and save a session

\ I am a new ubuntu user. kindly, using ubuntu (terminal) I could open tmux session and open my R program then run the script, the script prints text on the scree. my question(s) are: how to re enter ...
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1answer
181 views

Asus UX303UA rebooting instead of resuming from suspend (ubuntu 15.10)

I installed ubuntu 15.10 (kernel 4.2.0-22-generic) on a brand new Asus UX303UA laptop. Almost everything works fine, but I have some trouble with suspending: When the laptop is plugged in (charging), ...
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2answers
58 views

How to set up Python path?

I have uninstall anaconda2. but now when I run Python command in terminal it says "bash: /home/user/anaconda2/python: No such file or directory" now how can I set to Python when I have python 2.7 in ...
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5answers
372 views

What is a symbolic link made from? Understanding the structure of symlinks

I use Ubuntu 15.10 and I'm very new in Linux. After reading in Wikipedia what is a symbolic link in general, and after executing a symlink creation command in the Ubuntu Unix-bash terminal, I ought to ...
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0answers
38 views

“Process cannot access the file” error with .net app under wine

I have a legacy .NET app (dotnetapp) that works fine on Windows XP and has been for many years. I setup Ubuntu 14.04 in a VirtualBox VM to try and see if I can get the app to work under Wine on ...
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1answer
23 views

Some packages cannot be installed using multi-arch (take two)

Note: This question has been previously asked on askubuntu.com but was rejected as off-topic, and instead, I was redirected to this site. Therefore I'm reposting it here. I'm trying to compile a ...
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1answer
17 views

Restore boot parameters to default value Linux

I feel my system is getting slower and slower. I am using Ubuntu and my machine is HP ProBook 450 i7 4x2.0GHz, 8GB RAM and an optical HD. Still it takes ~2 minutes to boot, which in my opinion is way ...
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0answers
43 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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0answers
49 views

dpkg-deb: error: control directory has bad permissions

I'm running an Ubuntu 12.04 VM and trying to convert an rpm file to a deb file. When I run sudo alien --to-deb --scripts oracle-xe-11.2.0-1.0.x86_64.rpm I get this error dpkg-deb: error: control ...
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3answers
49 views

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 ...
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0answers
10 views

keyboard layout bug in Trusty 14.04

My default layout is AZERTY, but i also have the QWERTY layout (don't know why, my keyboard is AZERTY) and sometimes after booting my computer, QWERTY is selected automatically while itdisplays to be ...
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0answers
42 views

IPTables if more than 30 connection in 1 minute ban IP for 1 hour?

I am trying to setup a firewall that limits to 3 connections per IP and also ban the IP for an hour if > 30 connection attempts in one minute. Is this all possible with iptables? So far I have only ...
5
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1answer
46 views

Determine if a graphics card is new

The 1 GB ATI/AMD dedicated graphics card of my Dell Inspiron N5010 laptop failed recently and I got it repaired from a local laptop service center as the laptop is out of warranty. The service man ...
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0answers
33 views

Ubuntu routing tables problem

I'm having an issue with ubuntu's server network traffic rules. Ubuntu server's version is 14.04. I have a zabbix server monitoring serveral hosts. 2 days ago, about 14 hosts started reporting down. ...
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2answers
124 views

Xt error: Can't open display!

I am trying to run xterm on my Virtualbox ubuntu VM, but when I run xterm on the VM, I keep getting the message xterm: Xt error: Can't open display!: xterm: DISPLAY is not set When I run xterm ...