Greatest Hits

37
votes
5answers
68k views

Is there a free trusted vmware image with Ubuntu preinstalled?

Since the vmware virtual machine drivers are pretty standard I don't see any technical reason for a preinstalled image not to be portable. Although the above situation is obvious, I didn't find any ...
3
votes
3answers
25k views

Result of make command is /usr/bin/ld: cannot find -lcudart

I am newbie to Ubuntu and using Ubuntu 14.04 64-bit. I want to make a project that uses cuda and opencv I got the following error when running cmake . && make Linking CXX executable ...
1
vote
2answers
42k views

No root file system is defined

Here the steps I used to install Ubuntu. Booted Ubuntu 13.04 from a USB drive (I have XP). Everything going fine. Gave me options how to install. Chose "Other" as I have multiple drives. Gave me ...
18
votes
4answers
65k views

How to find owner and group of a directory?

How can I find out owner and group of a directory in Ubuntu?
13
votes
3answers
27k views

How do I use the latest gcc 4.9 on Ubuntu 14.04

I want to compile my program with the latest version of gcc. Ubuntu 14.04 comes with gcc 4.8.2, however there's 4.9.0 available, moreover, I see that it is available as a package: gcc-4.9. I tried to ...
31
14
votes
2answers
17k views

error in installing mongo in virtual machine

I try to install mongo using mongo documentation: Install MongoDB on Ubuntu no errors were mentioned during the installation. But when I run the mongo command following error was displayed in the ...
11
votes
2answers
19k views

How to install .bundle packages in Ubuntu?

I recently download a package with .bundle extension. it's VMware-Player-6.0.3-1895310.x86_64.bundle. I want to install vmware-player but when I open that, it opens with text editor.
2
votes
1answer
26k views

How to install Flash Player Plugin in Lubuntu?

I am actually using Lubuntu, and I can't install the Abobe Flash Player Plugin with Chromium. When I download it on the Adobe Flash Player website, Lubuntu ask me (in French, sorry, I live in France) ...
7
votes
2answers
25k views

Proxy authentication with terminal Ubuntu 14.04

I would like to access the internet to update files etc. from the terminal on a secured proxy network. I've already tried the following: Adding to /etc/apt/apt.conf, /etc/apt/apt.conf.d/01proxy, ...
10
votes
1answer
57k views

How to add a GPG key to the apt sources keyring?

Ubuntu Doc page says this: It is advisable that you add the Opera GPG key. wget -qO - http://deb.opera.com/archive.key | sudo apt-key add - Where do I add that? I want to take the advice ...
19
30
votes
2answers
17k views

Explanation of the command to check shellshock

Here is the command I have used to check my bash shell for the Shellshock bug: env x='() { :;}; echo vulnerable' bash -c "echo this is a test" Can anyone please explain the command in details?
14
votes
1answer
40k views

32-Bit UEFI Boot Support

I recently purchased a Dell Venue 8 Pro. I have read online about what it needs in order to boot into Ubuntu or any other Linux distro. From what I have gathered, what really needs to happen is ...
4
votes
1answer
46k views

Run executable file on terminal

I'm new to Ubuntu and currently on it because of assignment. I would like to ask few questions: 1) How do I make new command to run a shell script? For example, when you type "passwd" on terminal ...
3
votes
3answers
31k views

cp - cannot create regular file : permission denied

I want copy to /lib/udev but gives error cp -f /tmp/ok_pcscd_hotplug.sh /lib/udev cp:cannot create regular file /lib/udev/ok_pcscd_hotplug : Permission denied I am root , but I can't understand . ...
10
votes
1answer
31k views

What does apt-get --fix-missing do and when is it useful?

From the man page: -m, --ignore-missing, --fix-missing Ignore missing packages; if packages cannot be retrieved or fail the integrity check after retrieval (corrupted package files), hold back ...
23
votes
2answers
28k views

Adapt Ubuntu to a high-DPI resolution screen

What are the steps you need to adapt Ubuntu on a fresh installed Laptop with a high resolution display? I have a display with 3200x1600px on only 11'' which is all realy tiny.
3
votes
2answers
16k views

Upgrade xubuntu from 14.04 to 14.10

I set Notify me of a new Ubuntu version to For any new version. Then I did this in terminal: sudo apt-get update sudo apt-get dist-upgrade And nothing happened. The result of cat /etc/lsb-release ...
9
votes
4answers
36k views

How do I get HTML5 h.264 Video working on Firefox?

According the the release notes for Firefox 26, h.264 video should now be working in Linux. It does also say the appropriate gstreamer plug-ins need to be installed. Does anyone know what these are? ...
6
votes
1answer
33k views

Getting hybrid graphics to work nvidia-prime GT650M

I recently made the switch to Ubuntu. Everything on my laptop works fine except my hybrid graphics card. It is Intel graphics combined with Nvidia GeForce GT650M. I tried Bumblebee, but primusrun ...
3
votes
2answers
38k views

How to install “intel graphics driver installer ” in Ubuntu 12.04 LTS?

My system specification is as follow:- Microprocessor 2.6 GHz Intel Core i5-3230M Video Graphics Intel HD Graphics 4000 I want to install graphic driver provided by intel for linux. Need help ...
6
votes
1answer
26k views

How to setup OpenVPN Client

I'm trying to setup OpenVPN using NetworkManager. The GUI seems buggy and unresponsive. Are there any other tools for setting up a VPN client?
4
votes
2answers
22k views

permission denied for root@localhost for ssh connection

I just installed Ubuntu 14.04 and LAMP on that. Then, I wanted to configure my server, so tried out This tutorial. When I give the command: ssh root@localhost I get : Permission denied, please try ...
5
votes
1answer
40k views

How to open a port?

I have ubuntu 12.04 and I'm not able to allow certain port in my firewall. So I basically said I will allow everything but it's still not working. Please help. nmap on this machine from other machine ...
11
votes
3answers
50k views

How can I run Disk Utility in terminal via a comand line?

First of all, I must say that I have successfully used Disk Utility in the past and thus I could rename my partitions. But yesterday, I saw that my partitions are not mounted, so I used Storage ...
2
votes
3answers
16k views

How to install virtualbox on ubuntu 14.04?

using Ubuntu 14.04 I download the Ubuntu version from this link: https://virtualbox.org/wiki/Linux_Downloads Ubuntu 13.04/13.10/14.04 (64bit) ...
7
votes
4answers
50k views

SSH error: Permission denied, please try again

I am new to ubuntu. Hence please forgive me if the question is too simple. I have a ubuntu server setup using amazon ec2 instance. I need to connect my desktop (which is also a ubuntu machine) to the ...
3
votes
4answers
19k views

How to check opened/closed port on my computer?

I was wondering how to check the opened/closed port on my computer. I used netstat -a on command line, Is the port status "LISTENING" indicated that the port is opened? Any port that are not shown in ...
13
12
votes
1answer
22k views

What are the rcuos/rcuob processes I'm seeing in top?

I ran top, and I see lots of rcuos/rcuob processes. Here's a sample of top output: top - 21:41:15 up 22 days, 19:20, 1 user, load average: 0.00, 0.01, 0.05 Tasks: 332 total, 1 running, 331 ...
8
votes
2answers
71k views

How to recover a deleted NTFS partition with data

I am on Ubuntu 12.04 64-bits I accidentally deleted a NTFS 255 GB partition using Gparted, and yes it contains LOTS of important data. Upon realizing the deletion I haven't yet created any ...
8
votes
4answers
41k views

How do I add a network drive to Plex?

So I've been looking around and can't find an exact solution to my problem. I dual boot Windows 7 and Ubuntu 13.04. I like Ubuntu and want to use it instead of windows. Everything was working on ...
5
votes
3answers
16k views

How can KVM be located by Android Studio on Ubuntu 14.04 LTS

When running the emulator, Android Studio reports the following message: Please ensure KVM is properly installed and usable. CPU acceleration status: KVM is not installed on this machine ...
31
votes
2answers
16k views

How do I install Landscape for personal use?

I'd like to manage my home machines and laptops with Landscape, how can I do this?
5
votes
1answer
37k views

How do I install and enable pdo_mysql and gd extensions for php5?

When trying to install webtrees I get the following output: Checking server configuration PHP extension "pdo_mysql" is disabled. You cannot install webtrees until this is enabled. Please ...
21
5
votes
4answers
14k views

how to download playlist from youtube-dl?

I'm trying to download some videos in mp3 format. it's a play list. How do I download the whole play list wit one command?
8
votes
2answers
22k views

Terminal method of formatting storage drive

I want to know how to format a storage drive from the terminal. Helpful things to provide in the answer would be often used options for commands and base knowledge that one can use to extrapolate ...
5
votes
1answer
26k views

Cannot connect to wireless in Lubuntu 14.04

I have tried all afternoon to fix this, but now I give up. I am trying to set up an old XP PC with Lubuntu 14.04. It works perfectly fine, except for the wireless connection. Connecting with ethernet ...
23
votes
3answers
34k views

How to find and list all the symbolic links created for a particular file?

I had created many symbolic links on various paths for a particular file or a directory. I want the whole list of created symbolic links paths (location). Example: I created symbolic links for ...
3
votes
1answer
31k views

connect: Network is unreachable? - ping

When I attempt to ping google's dns or any outside the network I get connect: Network is unreachable? I can't update either which I put down to this I am new to networking... And Ubuntu. But these ...
9
votes
3answers
25k views

14.04 doesnt have package imagemagick

Usually I had installed Image Magick on my Ubuntu systems with a command like this sudo apt-get install imagemagick or like this: sudo apt-get install php5-imagick Right now I am running the ...
5
votes
4answers
42k views

How to fix the MBR for Windows 7?

I have installed Ubuntu as dualboot with Windows 7. Now I'm no longer using Ubuntu so i removed the Ubuntu partition and added the unallocated space to my Windows 7 partition. But after I restart my ...
16
votes
11answers
34k views

How to clone to a smaller harddisk?

How to clone a harddisk to a smaller sized one. Clonezilla is great but it doesn't support such functionality. Also dd and PartImage don't support this demand. rsync will not copy the MBR since an ...
15
votes
1answer
46k views

update-java-alternatives vs update-alternatives --config java

On Ubuntu 12.04 LTS I have installed Sun's JDK7, Eclipse, and the Arduino IDE. I want the Arduino to use OpenJDK 6 and want Eclipse to use Sun's JDK 7. From my understanding I need to manually ...
19
1
vote
1answer
17k views

Ubuntu 14.10 Nvidia Driver

I upgraded my ubuntu 14.04 to 14.10 , and my nvidia gforce stopped working , and giving low resolution on both internal and external monitor!!!. Is there any update for this Driver, as I am using ...
12
0
votes
3answers
26k views

MATLAB R2014a on Ubuntu 14.04 Install Issue

I am trying to install MATLAB R2014a on Ubuntu 14.04 LTS. I download the .iso file (from my University) and mount it using Disk Image Mounter. Then I open a terminal, switch to the directory where ...
11
votes
1answer
41k views

iptables log file,and how change it

I have this rule in my iptables: iptables -AINPUT -s 192.168.11.0/24 -j LOG My question is: Where is the iptables log file, and how can i change that?
6
votes
2answers
41k views

How to fix Permission Denied (Public key) error?

While trying to communicate between my desktop Ubuntu 12.10 and Fedora 19 desktop, I am facing the error of Permission Denied (Public key). I am able to login through ssh from fedora to Ubuntu, but ...
18
3
votes
2answers
76k views

How to set up VirtualBox Bridged Network on Windows 7 Host?

I have virtualbox running on a Windows 2008 server, with a guest running ubuntu 10.04. The ubuntu guest is given a static IP of 192.168.1.4, which also has openssh installed. The guest has bridged ...
8
votes
3answers
27k views

Route all traffic through OpenVPN

Yep, this question has been asked a hundred times, and I have searched everywhere, to no avail. The title says it all really. I have an OpenVPN server (On ubuntu), and I can connect to it through ...
7
votes
3answers
16k views

How do I disable SSLv3 in tomcat?

Please provide the fix for How do I patch/workaround SSLv3 POODLE vulnerability (CVE­-2014­-3566)? for Tomcat. I have tried following below link, however it does not help: tomcat-users mailing list ...
2
votes
5answers
33k views

How to Setup a root cron Job Properly

I tried to setup a root cron job to run a Bash script as root, to run at minute 7,37, every hour, every day of month, every month. This script is located in /usr/bin and named tunlrupdate.sh is used ...
4