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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14 views

Top forest view with filter, can I include all children?

If I'm using top in "forest" mode (V) and I restrict by PID (o PID=12345), can I also get top to show all the child processes in the same view? Ubuntu, top from procps-ng version 3.3.9
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1answer
539 views

Ubuntu 14.04 LTS - USB 3.0 Low Output or not working

I have a problem with my laptop. Since I've installed Ubuntu 14.04 LTS in dual boot, my two USB 3.0 don't work anymore. Maybe you need to know: My Laptop has 2*USB 2.0 and 2*USB 3.0. One of the USB ...
2
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3answers
181 views

'ImportError: No module named _struct' error when managing packages

I'm running elementary OS 0.2 (based on Ubuntu 12.04) and starting today I'm seeing a weird error when attempting to install/upgrade packages. Just now for example I did a: sudo apt-get update ...
0
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1answer
99 views

Accessing file from the Windows host in a VirtualBox virtual machine

I am running Ubuntu 14.04 as the guest operating system in a VirtualBox virtual machine. The host runs Windows 8 (24GB). I want to access a folder of the host inside the guest. Since the source is ...
1
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3answers
73 views

How to copy-merge two directories?

I have two directories images and images2 with this structure in Linux: /images/ad /images/fe /images/foo ... and other 4000 folders and the other is like: /images2/ad /images2/fe ...
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1answer
49 views

How can I tease Sonicwall ?

In my college, I can't use the web, because they use Sonicwall network firewalls How can I tease it? For I use all websites in my college? Please see the result when I access a website blocked ...
0
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1answer
95 views

Dual boot Ubuntu 14.04 and CentOS 7.0

Problem in installing Ubuntu after CentOS 7.0: I have a laptop with a hard disk around 170Gb. After installing CentOS 7.0 I tried to install the Ubuntu 14.04 alongside with the CentOS 7.0. The Ubuntu ...
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0answers
135 views

Docker error creating bridge

after installing Docker on a Ubuntu 14.04 minimal system with these commands, apt-get update apt-get install docker.io ln -sf /usr/bin/docker.io /usr/local/bin/docker sed -i '$acomplete -F _docker ...
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0answers
129 views

nVidia fail after update

I have a 64-bit computer with Ubuntu 14.04, Gnome and nVidia. I had the official drivers from nVidia installed, all working perfectly, even Steam games. I did a reboot after a recent update and the ...
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0answers
34 views

Logrotate no longer reads symlinked configuration file due to non-root ownership

We are currently upgrading from Ubuntu 12.04 LTS to 14.04 LTS on our ruby on rails application servers, and have noticed that the log files are no longer rotating. On both machines we have a file ...
0
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0answers
29 views

How to setup a scanner in crouton chroot?

I have ubuntu 12.04 installed on my hp chromebook using crouton but I'm not sure how to access a usb device from inside the chroot. I'm trying to access a brother DS-720D scanner with xsane. From ...
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0answers
42 views

Ubuntu 13.10 x64 - slow and acting strangely gvfs+NTFS

I have updated Ubuntu 13.10 x64 to latest stable releases of all packages. I'm running GNOME and using SSD disks on USB 3.0 ports in lenovo Y500 notebook. I'm using Midnight Commander (as root) in ...
1
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1answer
122 views

How to install meld 3.11 in Ubuntu 14.04?

I am trying to get meld 3.11 to work on ubuntu 14.04 I tried following the method below" cd ~ git clone https://git.gnome.org/browse/meld cd meld sudo ln -s ~/meld/bin/meld /usr/bin/meld But ...
2
votes
1answer
41 views

fstab group option?

Environment Ubuntu 14.04 LTS Desktop 64-bit Problem only members of group_name should be allowed to mount,unmount and read,write,execute drive_name Potential Solution edit /etc/fstab add ...
1
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2answers
98 views

Elantech Mouse Touchpad not working well

I have a dual-boot Ubuntu/Debian (GNOME) machine: My mouse touchpad does not work correctly (right-click not recognized, cannot do 2 finger drag and drop/highlight) on Debian, but it does work ...
0
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1answer
204 views

Upgraded to Ubuntu 14.04 - Mail server missing dovecot-lmtp even though it is installed

So I upgraded to Ubuntu 14.04.1 from 12.04 the other day. Easy upgrade process. Everything worked fine except for my mail server stopped receiving mail. The logs show the mail arrives and is ...
0
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2answers
114 views

“Could not connect to display” in one user account

I have a GUI application written in Qt and I wanted to run tests by ssh (or Jenkins). There is only one user account, which allows to run it in display mode (ofc when I previously do "export ...
0
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0answers
94 views

How to get to recovery mode if grub screen does not appear?

I cannot login my Ubuntu12.04 (which is VM running on OSX using VMWARE FUSION 6) because I have changed permission of /tmp for some purpose before rebooting the machine. Thus I tried to boot Ubuntu ...
1
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1answer
34 views

network interface counters not working?

I just built a router and installed it with Ubuntu Server 14.04 LTS. The system has two NICs, one for the internal network and one for the external (p3p1) network. I'd like to monitor external ...
0
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1answer
18 views

Starting up and keeping up a process

I am having an Ubuntu box on which I am having a Haskell process (think of it as a random server process) that I built. I want to start it on boot and restart it in case it fails for whatever reason ...
2
votes
1answer
199 views

How to create KVM guest with SPICE graphics but TLS disabled using virt-install?

I am using virt-install (see below) to create a guest. All seems fine up to the point where it complains about auto-allocation of the SPICE TLS port. Here's what I am running and the full output: # ...
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2answers
76 views

Ubuntu boots immediately

After using Wubi for a few weeks, I thought it would be time to do a real install of Ubuntu. I downloaded the iso file from the official website and installed the iso on a usb (with Pen Drive Linux's ...
0
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0answers
123 views

virtualbox mail server postfix+dovecot

I'm setting up a mail server(ubuntu14.4 serverX64) for development/testing purposes (using virtualBox bridged-mode) and I just finished this tutorial and everything seams to work. Now I'm not able ...
0
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2answers
74 views

SSH Server on Ubuntu not works

I wanted to start SSH server on Ubuntu 14.04 running on VirtualBox. I installed Openssh, sshd, etc., configured sshd_config to listen on ip, which I see in ifconfig and it not working. I'm starting ...
2
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0answers
62 views

/dev/sda not appearing after secure erase

I decided to wipe my SSD with a secure erase before installing Arch Linux, since the Arch wiki said that it would improve performance. I followed the instructions listed on the wiki, but now when I ...
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1answer
62 views

Why should I get linux? [closed]

Ok so I am student, about to get my degree in computer science. I have been programming for couple of years now on my Macbook pro on OS X and I havent had any problems. On the other hand, everyone ...
2
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1answer
87 views

ext4 filesystems frequently corrupting

We have occasional power outages in our environment which seems to cause data corruption on our Ubuntu machines with ext4 filesystems. To my understanding ext4's default is to use data=ordered ...
1
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1answer
28 views

Save views in multiple screen terminals

As I do in default single view screen terminal of ubuntu; gnome-terminal \ --tab-with-profile=Default --working-directory="some dir" --title="some title" \ --tab-with-profile=Default ...
1
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2answers
38 views

Can't get upstart service to honor capabilities(7)

I am developing a daemon started by upstart (Ubuntu 14.04) which needs to run as a non-privileged user (for security), but bind privileged port 443. I am using setcap to set the CAP_NET_BIND_SERVICE ...
4
votes
2answers
60 views

Trigger an init script when a specific device is up and a kernel module has been loaded

On my ubuntu 12.04 servers, I need to write an init.d script that waits until the infiniband interface (device: mlx4_0, interface: ib0) is completely up, and until the knem kernel module is loaded. ...
3
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1answer
28 views

sudo and fish: no credential caching

I use fish as my standard shell. And I use sudo sometimes. But I'm having problems with credential caching. On an Ubuntu system, this works: niklas@Niklas-Mobil~> sudo true [sudo] password for ...
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1answer
27 views

Two HDD partitions with the same name result in uncertain directories

I'm running Ubuntu 14.04 on a machine that has a lot of hard drives plugged into it. These hard drives have partitions with old OS's which have a lot of key data that I use often. The problem is, I ...
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1answer
12 views

Virtual console pauses video and audio playback running in KDE

In Kubuntu 14.04, when I switch to one of the virtual consoles by pressing CTRL-ALT-F1...F6 all audio and video playback running in the GUI gets interrupted and continues only when going back to X. ...
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2answers
86 views

How to achieve higher display resolution for Ubuntu under VirtualBox?

In this setup, Ubuntu under VM only achieves low resolution at 640 * 480 while host is 1920 * 1024. How to, (I believe is to configure X server), achieve higher resolution? I have set in VirtualBox ...
0
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1answer
125 views

Recovering from 'grub rescue>' crash

Originally posted to AskUbuntu.com ... AskUbuntu has adopted a policy of closing questions about EOL (End Of Life) versions. There's a vocal contingent to remove them as well. To prevent ...
0
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2answers
407 views

Ubuntu under VirtualBox 4.3.12 r93733 run slow on Windows7 with AVG free 2011

Ubuntu VM speed is subjectively 5 to 10 times slow. Tried setting CPU number, PIIX3/ICH9, Display 3D acceleration. Still slow. Any pointers appreciated. VirtualBox installed with all default setting. ...
2
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1answer
75 views

I can't install new packages and can't update and upgrade

I'm trying to install some program on Ubuntu, but when I try it I got the following error.- E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock ...
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0answers
64 views

Changing the Java Runtime in NetBean 8 on Ubuntu 14.04

(Not sure if this is the right site for this question - if not please migrate.) I am using Netbeans for C++ on Ubuntu 14.04. Ubuntu comes with the Open JDK Runtime, which is what Netbeans is ...
0
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0answers
214 views

Running MySQL in a Docker container

So my ultimate end goal is to run a MySQL Docker container (say tutum/mysql from the public registry) and then link a Gitlab Docker container (say sameersbn/gitlab) to it, where both containers use ...
0
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2answers
100 views

Installed Linux, now Windows doesn't boot anymore

I had a working Windows 8.1 which I used regularly. Today I needed Linux, so I chose Ubuntu and installed it from a bootable flash drive alongside Windows. Everything worked well, I could choose which ...
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0answers
24 views

Creating a Live Kernel with u-boot

I want to create a live kernel with u-boot. I have a ARM board that has a 4GB nand flash memory. I used manufacturing tools from the freescale website for the i.mx6 chip. I have read that you can ...
5
votes
1answer
65 views

Not able to see the progression of a file with “tail -f”!

It's a surprise why now this command isn't working which earlier was. See I've the below command to run for backup. ubuntu@ubuntu:~$ sudo tar -cvf /media/ubuntu/My*Linux/ub*data/zebra.tar ...
1
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1answer
139 views

Can use Password authentication with SFTP even though “PasswordAuthentication no” in /etc/ssh/sshd_config

I have enabled SSH-keys based authentication on the Ubuntu 14.04 server, disabled root login using SSH and can connect successfully using SSH-keys based authentication with my user account blahblah on ...
0
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0answers
16 views

ncq disabled on usb drive with ncq capabilities

I've recently purchased a Gigabyte BRIX paired with WD10JFCX 1TB Drive which is encased in an USB3.0 box. On it I run Ubuntu LTS 14.04 When I look at /sys/block/sdb/devices/queue_depth it reads 1 ...
2
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0answers
178 views

Ubuntu 13.10 has suddenly failed to boot!

Yesterday evening, I don't know what happened but my system (Ubuntu 13.10) didn't boot. Since then I tried many times but the same issue as I explain below. See I boot my system. GRUB menu comes; I ...
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0answers
225 views

How does Ubuntu 14.04 achieve persistent eth* interfaces?

Trying to upgrade udev to 197+ on my LFS system, I've come across a problem that old persistent network interface names scheme is no longer supported. Before trying to go on with the new suggested ...
0
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1answer
149 views

Installing mysql-server in vagrant bootstrap shell script (how to skip setup?)

I did try to install mysql-server on my Vagrant Ubuntu 12.04 LTS virtual machine. When I did so, the setup auto-starts. I can see this in the Vagrant output: While not mandatory, it is highly ...
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0answers
73 views

How to create a shortcut of some folder on Docky?

I am using docky on ubuntu 14.04.I am able to pin shortcut of applications to it. But how can I make a shortcut of a particular folder to it. Like It has home folder icon in docky ..I want to have ...
1
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1answer
648 views

How to use Wireless Network in Virtualbox?

I'm trying to enable Wireless on VirtualBox in my Ubuntu 14.04. I use a Kali Linux as the guest OS, but this OS not show the wi-fi when I connect it. After starting the guest OS, it still does not ...
2
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0answers
64 views

A window asking me to enter my ssh passphrase is popping up randomly. Why?

I'm on Ubuntu 14.04. For a few weeks now a small window keeps popping up randomly, grabbing my keyboard and asking me to enter the passphrase for my ssh key. The Window's title says "OpenSSH", and it ...