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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Old Xen Installation Unable to be Formatted

I recently tried to format a disk that had an old Ubuntu 14.04 partition and a Xen Swap Disk partition. I am currently running the Ubuntu Live CD and trying to access my partitions on the drive for ...
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1answer
25 views

Incorrect iperf configuration?

I have a laptop (with Ubuntu) and a router (with OpenWrt). When I check the version for both, the laptop says I have version 2.05 for multithreads and the router says I have 2.05 for pthreads. Both ...
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16 views

mdadm RAID10 - change broken disk

Tonight my server stopped answering to ssh, ping, so I drove to the server room. Server did not respond to keyboard (even Ctrl-Alt-Del), there was no data on screen (it was black, no symbols on it), ...
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1answer
30 views

Disabling wlan0 adapter

Question: What is the terminal command behind right clicking on the wireless icon (Ubuntu 15.04) and then unchecking "Enable Wi-Fi" the box? Why am I asking it? macchanger just work for me when I ...
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38 views

Mouse Pointer Blinks and Sometimes Disappears

I am using Ubuntu 14.04LTS with dual Monitor. I am unable to figure out the problem occurring with the mouse pointer. The mouse pointer blinks and at times it disappears. Any help is appreciated ...
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36 views

Why won't MOTD display output from a Python script it calls outside of /etc/update-motd.d/ unless it's in this directory?

The Situation We're running a headless Ubuntu 14.10 Server to fulfill various needs and tests. I was experimenting with changing the MOTD for SSH sessions via /etc/update-motd.d/ so as to display ...
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35 views

Iperf connection failed

I have an openwrt router connected to my ubuntu laptop with an ethernet cable. I installed iperf on both, and now I am trying to run commands (i.e. iperf -s), but I keep getting the following errors: ...
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39 views

Asterisk:Registration is UNREACHABLE VOIP chan_sip.c:15171 sip_reg_timeout

I'm trying to register my VOIP but I can't and appear this massege [Jul 24 12:45:58] NOTICE[24430]: chan_sip.c:15171 sip_reg_timeout: -- Registration for 'XXXXX@sip2.tellfree.net' timed out, ...
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1answer
72 views

what's difference between src version 3.* and 3.*-generic

In my local Linux/Ubuntu, I have two directories for Linux src /usr/src/linux-3.16.0 /usr/src/linux-3.16.0-generic I found the code in 3.16.0 is much more than that in 3.16.0-generic. I am ...
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2answers
83 views

Vagrant: missing destination file operand after ‘/etc/exports’

I'm running Vagrant 1.7.3 with an Ubuntu 14.04 basebox, and I want to try out the new Puppet 4.2.0. However, when I run vagrant up on an empty VM, I get the following error: cp: missing destination ...
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18 views

Ubuntu 14.04 VM resizing in VMWare fusion 7 whenever a terminal is opened?

On a computer at work, we have a virtual machine running that resizes the whole VMWare window whenever you launch a new CLI terminal window within the VM. Any ideas how to fix it? It's quite annoying. ...
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26 views

modprobe vmhgfs gives — FATAL: Module vmhgfs not found

I'm trying to get shared folders working in VMware Player 6. My host is a Windows 7 box, and the VM guest is Ubuntu 14.x I'm trying to share an external drive on my Windows machine (F:) with my ...
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1answer
29 views

Replacement for php5-auth-pam to authenticate website login against local users

I am working on a login for a PHP-based website where users should be successfully logged in if they enter a valid username and password for a local account on the system. Looking around, it seems ...
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1answer
34 views

Problems installing PCRE on ubuntu

I am new to linux and am trying to install PCRE 8.37 on Ubuntu 14.04 but am getting the following error: sudo ./configure && make && make install checking for a BSD-compatible ...
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76 views

Ubuntu 14.04.2 LTS: for NIS users, SSH works but console login and sudo fail

I set up a fresh Ubuntu 14.04 LTS VM on VirtualBox and did an upgrade, so now I'm sitting at 14.04.2. Our office environment is NIS+NFS. I set up autofs and NIS, and confirmed that I can log in as a ...
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1answer
19 views

Advanced Policy Firewall: allow_hosts.rules doesn't work

I'm trying to open ports for Nimsoft. In allow_hosts.rules I opened ports for private network: tcp:in:d=48000_48020:s=10.0.0.0/8 tcp:out:d=48000_48020:d=10.0.0.0/8 During starting apf I see that ...
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33 views

Using Ubuntu Server machine as a DHCP and DNS server to forward URL's to IP addresses

I'm inexperienced with Linux servers but I've done okay so far - basically I want this machine to dish out IP addresses via DHCP (done) and then I also want it to act as a DNS server that simply sends ...
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23 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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148 views

Realtek RTL8111 Network card not working on Ubuntu 14.04

I'm trying to install an Ethernet Card into my Ubuntu 14.04 desktop computer. Here is my lspci output (First one is my new ethernet card): 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. ...
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14 views

is it possible to install libBLT.2.4.so.8.5?

my tkinter is linked to libBLT.2.4.so.8.5 and libtk8.5. However, my ubuntu system only has libBLT.2.4.so.8.6. Is it possible to install libBLT.2.4.so.8.5?
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1answer
57 views

Bash script strange behavior - script does not act as manual commands

So, this is strange. When I manually run commands it all works fine, but when I run a script with identical commands, I get strange error output. This is what I run: lxc list; for elem in ...
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2answers
49 views

Installing mailx on ubuntu 14.04.2

So I've installed mailx but I'm unable to get it to send an e-mail. I do the following: mailx -s "Test" To: myemail@email.com Cc: "This is a test." CTRL-D (does not work) CTRL-D does nothing. It's ...
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19 views

Spotify Linux Client pulse audio crash

I'm running Elementary OS, using the latest version (0.9.17.1) and every day/every other day the client crashes and I get the following error: "spotify crashed with SIGABRT in ...
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29 views

etc/apt/sources.list contents for EC2 Instances upon AWS

When I copy an Ubuntu image between regions, the image is customised slightly in the process. Notably the software sources in /etc/apt/sources.list are altered to "local values". I am aware that ...
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2answers
43 views

rsyslog seems to have vanished from my system

I'm debugging an issue where I think my server is spamming other servers because it is infected but all my logs stop in august last year, and rsyslog is missing from the system /etc/rsyslog.d still ...
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1answer
45 views

Error while installing wget and unzip

I am trying to install wget and unzip on unbuntu machine. But i am facing the below issue. sudo apt-get install wget unzip
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59 views

Ubuntu - Ethernet Card Driver Installation: asm/linkage.h file not found

I'm trying to install an Ethernet Card into my ubuntu 14.04 desktop computer. Here is my lspci output (Second one is my new ethernet card): 03:00.0 Ethernet controller: Marvell Technology Group Ltd. ...
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49 views

Some features are not working in my ASUS laptop with Ubuntu

I have an Asus X200CA-KX219D VivoBook (3rd Gen ci3/ 4GB/ 500GB/ DOS) laptop with Ubuntu 14.04. Scrolling via touch pad and the fn keys do not work. Can someone please help me configure these ...
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2answers
101 views

Kali Linux 1.1.0a doesn't boot from USB

I have Windows 8.1 and Ubuntu installed. I had ran boot-repair since the os selection menu wasn't showing. Few days ago, I downloaded the latest version of Kali Linux. I used PowerISO to copy all the ...
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1answer
105 views

Why can't I use ssh?

The problem seems to occur straight from the time I have installed Ubuntu 14.04 LTS. I first realized this problem when I was trying to connect with my hosting at HostGator. I neglected and thought ...
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16 views

GDM flashing and can't login

I recently switched to ubuntu gnome from windows and am very inexperienced. I was using ubuntu fine for awhile and then this morning I had trouble signing in because my login prompt continuously ...
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13 views

Miro player doesn't recognize subtitle from video encoded by ffmpeg

It was the first time I encoded a video on Ubuntu. I used ffmpeg to extract the video/audio, encode them and join with a subtitle to a new file. All these steps were fine. I used the following ...
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2answers
33 views

I unable to update, Ubuntu 12.04 [closed]

W:Ignoring file 'rohan' in directory '/etc/apt/sources.list.d/' as it has no filename extension W:Ignoring file 'Untitled Document 1' in directory '/etc/apt/sources.list.d/' as it has no filename ...
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1answer
43 views

Why is /proc/irq/*/smp_affinity showing too wide of mask for number of CPUs on my computer?

I am running X86_64 Ubuntu Desktop 15.04 with latest kernel (i.e. 3.19.0-22-generic). I was inspecting the interrupts and IRQs and noticed that the bit-mask for smp_affinity was twice as large as it ...
2
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1answer
39 views

Udev hwdb rule does not work

I am switching from Ubuntu to Arch Linux and encountering the issue that a udev hwdb rule that has worked until now does not work anymore. The only obvious difference between the systems is that ...
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1answer
28 views

Ubuntu stops responding to any action

I use ubuntu and found it really frustrating that it stops working really frequently. The circumstances are: Opened Android Studio WITHOUT any emulators (I mean device emulator, I use real devices ...
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1answer
42 views

Problems setting up Ubuntu Machine as a router

I have been at this for over 24 hours, here is what I have so far. -I have an Ubuntu Server running version 14.04.2.amd64, called SV-01 -SV-01 has two NICs. ETH1 is for the external network (goes to ...
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26 views

Signing a module for prebuilt kernel

I am developing linux driver for my own PCI device. I have stucked up on starting my module: [14941.205599] mymod321: module verification failed: signature and/or required key missing - tainting ...
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1answer
233 views

Set Environment variable $PATH globally on Ubuntu 14.04

I am trying to add evironment path variable of composer globally. I've tried many ways but doesnot seem to work. Searched other posts but did not find matching answers. I am trying to work out ...
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37 views

How to put the current working directory into the PATH variable

Is it possible to put the current working directory into the $PATH variable? Perhaps something like: me@hostName:~$ echo $PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/$(PWD) ...
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28 views

Build customized Linux using Ubuntu or Debian Source

I want to customize a Ubuntu or Debian distribution for my Raspberry Pi. How can I remove packages and applications from Ubuntu or Debian? And is it possible to modify the GUI (graphic interface) of ...
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1answer
62 views

Grub 2 multi image boot disk boots some images but restarts on others

The issue I'm having is that my bootable usb I have only works with certain boot images, to be more specific it will boot Ubuntu desktop iso images but not Ubuntu server. If I try to boot Ubuntu ...
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43 views

ubuntu document reader for acrobat pdf forms

I have an acrobat pdf form that I need to fill. I am using ubuntu 14.04 trusty. Is there a reader that can handle this, the default (evince) doesn't seem to work. thanks
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50 views

How do I crash Ubuntu Linux 14.04 LTS deliberately?

I'm trying to crash an instance on AWS so I can simulate what happens when it gets 'stuck'. I tried the top suggestions here How to cause kernel panic with a single command? but unforunately they ...
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30 views

How can I ignore errors in the ls command? [duplicate]

I have this command, that lists how many job files I have running ls -las /var/www/data/forked/jobs/j*.job | echo "Jobs: $(wc -l)" However, if there aren't any, it throws an error. What's the ...
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1answer
20 views

how do I make a grub boot disk with multiple boot images

How do I use commands (I'm doing everything on Ubuntu) to create a bootable usb that displays a grub menu automatically when booted from, on that grub menu lists some boot images (downloaded from ...
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0answers
47 views

404 Not Found. File exists (mounted)

First off, I will update this post with any information you may need, but since I have no idea where to begin, I will try to summarize the issue. Just ask if you want to see something. I'm having ...
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1answer
270 views

Depends: gcc but it is not installable

I think I mistakenly deleted a gcc package from the system (Ubuntu 14.04). and now can't install anything on my system. Below is a sample output when I try apt-get -f install. Please Help! ...
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2answers
55 views

How is $HOME/bin added to my path? [duplicate]

I noticed that my path environment variable had the path for my home's binaries $HOME/bin. I did not add $HOME/bin directory to my path environment variable so how did $HOME/bin get added to the ...
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1answer
53 views

ubuntu - Why modifications to init.d script are ignored

I'm using Ubuntu Server 14.04. After I make modification to /etc/init.d/gearman-job-server and type: # sudo service gearman-job-server restart it ignores modification I've made. But then I type: # ...