Advanced Packaging Tool, the package manager for Debian-based distributions. It is also the most used tool for installing packages in Ubuntu. Questions about using any of the apt tools should use this tag.

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Broken Packages Issue while installing JDK on Ubuntu 14.04

I am having issues while trying to install JDK on Ubuntu 14.04. Following is what I see: araj1@araj:~$ sudo apt-get install openjdk-6-jre Reading package lists... Done Building dependency tree ...
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How Should I Be Maintaining My Manually Installed Apps?

I am used to using apt to install and upgrade my applications. To an extent, I'm relying on the repositiories I use to be sane and thus keep my machine in a good state. What is best-practice for ...
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1answer
1k views

Cant Downgrade php5.5 back to php5.3

I have tried to upgrade my apache2.2 to apache2.4 and php5.3 to php5.5 on my Ubuntu 12.04. For php5.5 I have used those commands below (I dont remember which PPA i used for apache upgrade) : ...
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1answer
331 views

error installing mongodb on trusty

I'm trying to install mongodb on the trusty tahr following this tutorial: http://docs.mongodb.org/manual/tutorial/install-mongodb-on-ubuntu/. When running the first command (sudo apt-key adv ...
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21 views

libapache2-mod-php5 : Depends: php5-common [duplicate]

I have tried to upgrade my apache2.2 to apache2.4 and php5.3 to php5.5 on my Ubuntu 12.04. For php5.5 I have used those commands below (I dont remember which PPA i used for apache upgrade) : ...
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1answer
169 views

Ubuntu Server 15.04 update error

I can't do sudo apt-get update, when i try it gives me loads of failed to fetch everything.. now I have no idea what could be wrong I searched for what the sources.list file should look like and it ...
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1answer
56 views

creating a deb package to install extension

I want to create a deb package that will install this and that extensions. I want to automate the steps of adding the extension to LibreOffice and Firefox. How do I create a package for this?
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252 views

Neither software updater not sudo apt-get update not working in Ubuntu 14.04 LTS

Whenever I run software updater, it shows that show "FAILED TO DOWNLOAD REPOSITORY INFORMATION", and when i run the command sudo apt-get update, it is shows the error below: sudo apt-get update ...
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3answers
1k views

Kodi package problems after upgrade from 13.10 to 14.04: libsdl2 not found

After my HTPC system upgrade from Ubuntu 13.10 to 14.04 I can't seem to install Kodi. I run sudo apt-add-repository ppa:team-xbmc/ppa sudo apt-get update sudo apt-get install kodi kodi-bin And ...
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1answer
410 views

Apt-get for Cuda 6.5 Libraries

I am trying to install Jetpack 1.1 for an Nvidia Jetson development card on a fresh install of Ubuntu 14.04. This is a mostly automated process, but at one point fairly deep into the install the ...
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1answer
47 views

Base Ubuntu Server, Can't install anything

I'm currently administrating an Ubuntu Server 14.04.2 and was looking forward to installing LAMP, first two lines I wrote were $ sudo apt-get update Reading package lists.. Done (no more no less) $ ...
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1answer
2k views

E: Unable to locate package libmysql-ruby

I try to install mysql for rails but i know that first must install the package libmysql-ruby I do the command E: Unable to locate package libmysql-ruby But It returns Reading package lists... ...
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24 views

How do I hold package regardless of revision change?

Only yesterday, I realized that apt-get forces a package, even if it is only a repackage of the same content with revision change. Many package-maintainers do this for newer release versions. I have ...
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1answer
233 views

I am trying to re-install r in my ubuntu 14.04. But I keep getting this error always I try to install r as sudo apt-get install r-base [duplicate]

The following packages have unmet dependencies: r-base : Depends: r-base-core (>= 3.2.1-1utopic0) but it is not going to be installed Depends: r-recommended (= 3.2.1-1utopic0) but it is not ...
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0answers
36 views

Reinstall an official package when custom one has overwritten it

I recently installed the Debian packages produced by running make deb-pkg to compile my own version of the Ubuntu kernel. I had given the kernel the release version 3.19.0-21-secure. All of the ...
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2answers
64 views

How to find the missing dependencies for all packages?

I think I have accidentally missed up my ubuntu, I wanted to remove TOR so I did sudo apt-get remove tor* That selected a lot of files, which I think is unrelated to the anonymity network. So I ended ...
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0answers
154 views

Gnome-shell unmet dependendcies

After playing with ElementaryOS DE, and completely removing Unity DE on my Ubuntu 14.04 installation, I am in unmet dependency hell. Output after sudo apt-get install gnome-shell is as follows: The ...
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1answer
936 views

Sudo apt-get install git problem

Hi Im kinda new to Ubuntu. That said, I can usually run this on a clean install of ubunty 14.10 sudo apt-get update sudo apt-get install git And then git should be installed But what I get is this ...
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1answer
51 views

Install software so that cannot be wiped by reinstalling

Is there a way to install programs under Ubuntu in such a way that the standard reinstall from live usb will not wipe them out? (e.g. by installing them in a different partition or keeping folders ...
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1answer
249 views

Apt-get dist-upgrade failure on on fresh 12.04

I have an absolutely fresh install of Ubuntu 12.04 on a USB drive, made using the 64-bit PC (i386) Desktop image. By "fresh" I mean that all I have done is remove the casper-rw file and replace it ...
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0answers
14 views

dpkg: dependency problems [duplicate]

First of all I am a beginner level user for Ubuntu, and while using apt-get install -f I encountered this issue, so is there any way to fix it. Reading package lists... Done Building dependency tree ...
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1answer
371 views

15.04 stopped upgrading Error (1) Udev and Insserv errors

My 15.04 will not upgrade successfully either through apt-get or otherwise. The files will download but I receive the following errors. So far I've found no solution. Udev and insserv seem to be the ...
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2answers
143 views

apt-get - where are the sources stored?

I was trying to update apt-get and I keep getting 404 errors - I assumed it was the fault of my proxy, which has been causing errors in wget and in the browser, but upon visiting one of the links that ...
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0answers
414 views

Sub-process /usr/bin/dpkg received a segmentation fault

I have corrupted either my /boot partition, dpkg, or both. I was trying to free up space on my /boot by removing old Linux images. Now my machine will not boot. when i try to reinstall Linux-images, ...
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1answer
25 views

How to fully cancel changes due to installation of software that require complex procedures?

I have recently install from source a software (Odoo) that require a complex procedure to be installed: creation of new users, connection to servers etc. etc. I want to install it again because it ...
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1answer
363 views

“Command not found” error in the installation process

Why I receive the following error while trying to install this package? and how can I resolve it? root@me-System-Product-Name:/home/me/Desktop/mfcuk-master# ls AUTHORS configure.ac INSTALL ...
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2answers
125 views

Sudo apt-get update error (ubuntu 14.04) [duplicate]

Hello Fellow Ubuntu users, sudo apt-get update on ubuntu 14.04 it keeps saying: E: Malformed line 10 in source list /etc/apt/sources.list (type) E: The list of sources could not be read. ...
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0answers
165 views

Dependency issues after reinstalling python

For a project I am working on, I decided to reinstall the Python libraries and includes so I did sudo apt-get remove python3.4 then sudo apt-get install python3.4. After doing this I resolved my ...
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1answer
356 views

Can't exec “locale”: No such file or directory at /usr/share/perl5/Debconf/Encoding.pm line 16

Please help me this is a problem Can't exec "locale": No such file or directory at /usr/share/perl5/Debconf/Encoding.pm line 16. Use of uninitialized value $Debconf::Encoding::charmap in scalar chomp ...
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0answers
41 views

Why i can't install nucurses-dev package on ubuntu 3.8.0-19 generics?

When I rum the command apt-get install kernel-package ncurses-dev bzip2 error occurs as E:Unable to locate package kernel-package E:Unable to locate package ncurses-dev
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1answer
62 views

How to add the source packages on launchpad to my PPA?

I have a working project on launchpad, with generation of packages for three version of Ubuntu distribution and all is fine there. However, I cannot find the option to tell launchpad to put the source ...
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1answer
18 views

Extras vs Backports

What are extras in the context of software sources ? How do they differ from backports ? [ This is only to let me pass the minimum length constraint ]
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38 views

Unable to Boot After removing Old Kernels

I removed old linux-image and linux-header files to free up space in /boot. I did this first by purging them in terminal, and when I noticed some issues with how the the operating system performed, i ...
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2answers
795 views

Can't remove steam

I'm running Ubuntu 14.04. I tried to install steam from the .deb from the steam website (steam_latest.deb) and this didn't work; I installed later with apt-get install steam (along with the 32 ...
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0answers
38 views

Should I install packages when alerted another package depends on it for installation?

I've been installing libraries to get Google Earth to run on Ubuntu 14.04 64bit. I got a list here, but this was returned when I entered it: The following packages have unmet dependencies: ...
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2answers
118 views

After removing a package, more packages are removed

After I type in my shell: sudo apt-get --purge remove openssl I got more than just openssl packages removed, why? Below is partial output: (Reading database ... 400426 files and directories ...
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1answer
166 views

Banshee installation, unmet dependencies

I am running ubuntu 15.04 on a Lenovo yoga 3 pro I'm having trouble installing the banshee media player. When I attempt to install via the Software Center, I get the following notification: The ...
2
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1answer
2k views

NLTK, installed in python 2.7 but not working in python 3.4

I just installed nltk when my default python was the 2.7 version, now when I open the python3 (3.4 version), I can't import nltk, is there any solution to this, to make nltk available for both ...
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3answers
82 views

Install all recent packages installed on other computer.

I have some package installed on a computer. I want to install similar packages for other computer. I can list down all recent packages with this command cat /var/log/dpkg.log | grep "\ install\ " ...
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48 views

Install Multiarch Libraries Simultaneously

I want to install both the amd64 and the armhf version of the library libcrypto++ on my pc for cross compilation. Is it possible to do that so that both libraries are present on my Pc at the same ...
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5answers
518 views

Is apt-get upgrade a dangerous command?

When I use apt-get update and apt-get upgrade,there are some packages should installed in newest version,like below: The following packages will be upgraded: accountsservice apparmor apport apt ...
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0answers
445 views

Broken package ubuntu-keyring (ubuntu 15.04 64 bit)

I've tried to reinstall ubuntu-keyring, because i couldn't fix some GPG errors, but the apt system has failed, Now, i can't even upgrade or install anything. i tried i lot of things such as : sudo ...
0
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1answer
72 views

Does anybody know how I might fix this error? (Mainly how to fix broken packages in linux)

Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created ...
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1answer
310 views

Why am i getting the error message “package 'owncloud' has no installation candidate?”

I am attempting to install Owncloud to Ubuntu server 14.10. I am using the code: sudo sh -c "echo 'deb http://download.opensuse.org/repositories/isv:/ownCloud:/community/xUbuntu_14.10/ /' >> ...
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79 views

Download from a new repository without modifying /etc/apt/sources.list

I'm am currently using heroku, and I am trying to install a package from a non-standard repo (https://github.com/openalpr/openalpr/wiki/Compilation-instructions-(Ubuntu-Linux)) I have had no issues ...
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2answers
74 views

Cant purge nvidia-331-updates

Just cant install/purge/update ANYTHING because apt-get tells me it MUST DELETE nvidia-331-updates before that. Purging/installing/deleting nvidia-331-updates fails with a message from dpkg. Removing ...
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2answers
1k views

Schemas missing - Unity Tweak Tool

I understand this is very similar to this question and this one, but none of the answers there have worked for me. When trying to install the packages mentioned in those questions, apt-get throws up ...
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1answer
71 views

Partial distribution upgrade 14.01 to 14.10 lost permissions to do anything

My WiFi went down as I was upgrading. Now, when I try to update software, I get an error message stating that I am not authorized to install or uninstall software. I cannot access synaptic. I searched ...
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2answers
423 views

install wikidpad

How can I install WikiDPad? I know I have ran it before on ubuntu 14.10 and now I want to run it on 15.04. I have looked for .debs or a ppa for it but I don't know whether to trust the sources that I ...
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2answers
4k views

Why is python-pip kept back in Ubuntu 14.04?

When I upgrade these days, I get this message: $ sudo apt-get upgrade -y Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done ...