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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I am not able to install mysql on ubuntu after unistalling it

I have to install MySQL in Ubuntu for a class. The first time intalling mysql it worked perfectly. However, I accidently ran the sudo mysql_secure_installation command when I wasn't supposed to. I ...
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1answer
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installing libcppunit in ubuntu 12.04

I am tryig to install the cppunit library in ubuntu 12.04, and I don't know how!! I have tried with: $ sudo apt-get install cppunit and I get an error saying that there is no install candidate, the ...
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List of sources could not be read, how can i fix this ? Also I dont have permission to change the text

I am trying to type in sudo apt-get update but the error comes up: Malformed line 57 in source list /etc/apt/sources.list (dist parse) The list of sources could not be read. I try to edit it but it ...
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Problem in updating ubuntu?

The following packages will be upgraded: cups-common libpam-systemd libpoppler46 libsystemd-daemon0 libsystemd-journal0 systemd 6 upgraded, 0 newly installed, 0 to remove and 342 not upgraded. ...
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How long does apt-get upgrade takes

I just clean installed ubuntu 14.04 and I tried to apt-get update and upgrade, not knowing that it actually takes forever to complete. How long does it take to upgrade from a persistent bootable USB ...
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2answers
970 views

Workaround to Hash sum mismatch in apt-get update behind firewall

I am using Ubuntu 12.04, 64 bit virtual machine within a company network which obviously has firewalls. When I try to run sudo apt-get update or sudo apt-get update --fix-missing I get this error: ...
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1answer
32 views

List multiple repositories under sources.list.d?

Can I add multiple alternative repositories to a *.list file in /etc/apt/sources.list.d, so that, for a specified package, if the first repository is unavailable, apt-get will try to download the same ...
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2answers
85 views

Upgrade from firefox 31 to 32 fails

Firefox fails to update due to corrupted download (deb) Preparing to unpack .../firefox_32.0+build1-0ubuntu0.14.04.1_i386.deb ... Unpacking firefox (32.0+build1-0ubuntu0.14.04.1) over ...
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How to completely remove an input source ibus 14.04?

I was using an input source (bengali-avro to be specific) . Out of the blue the locale started disturbing. So I couldn't type language properly.So I remove the source. then I set the /etc/environment ...
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1answer
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can I access plex media server from the android app?

I'm new to ubuntu and Linux. I have installed Plex using the ubuntu applications manager. When I try to connect to the server using the android app in settings>library>New Library, It says I run a ...
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6answers
6k views

Install packages without starting background processes and services

Sometimes installing some applications will start a process or service from the application being run automatically on installation. How do I install without starting them?
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1answer
169 views

“no public key available” while upgrading using update-manager

I decided to upgrade 12.04 to Ubuntu 14.04 latest. I followed.... sudo update-manager -d Then it's opening the update-manger GUI. After clicking the upgrade button It's return the below error list: ...
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3answers
4k views

How to install again Update Manager after uninstalling it

Ok, the thing is this I tried asking many times on few ubuntu forums how to deal with my non-responsive Update Manager, but all I was getting was the same stuff (run it from the terminal, run some ...
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1answer
24 views

Why I can not update my programs [duplicate]

Every time I try to run the built-in software updater it tells me that it needs an additional 11.8 mb on "/boot" and to empty my trash, clean my system with sudo apt-get clean. I've tried both ...
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3answers
3k views

apt-get remove with wildcard removed way more than expected. why?

Last night I was trying to burn CDs. Being annoyed with k3b and choosing to use brasero instead, I went to remove k3b. I typed in: sudo apt-get remove k3b I hit tab twice and saw that I had both ...
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31 views

“Could not write byte: broken pipe”

I have read several articles on this issue, but they did not help. What I did: I go into the mode "Recovery Mode" run the "Enable networking" then "Drop to root shell prompt". Often found this ...
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24 views

Can't remove the libpcap0.8 package or install any other package

I have a similar question to this question. Playing around with reaver was a bad idea. Upon running the command in the answer I get the following: joe@biden:~$ sudo apt-get -f remove libpcap-dev ...
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dpkg: error processing package libapache2-mod-php5

I have a problem at moment of use my apt-get/aptitude package manager When I want install some packages I get the following output: sudo aptitude install libxslt1.1 libxml2 The following partially ...
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Installing Git on Ubuntu, packet not found

I can't connect to my WLAN (Broadcom e4313). I searched online for a Solution and found a brmcsmac package which I should install with git. Now I wanted to install git with: sudo apt-get install git ...
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5answers
154k views

How to upgrade a single package using apt-get?

How do I update a single package? As far as man apt-get says apt-get upgrade doesn't take a package/list of packages as parameter: upgrade upgrade is used to install the newest versions of ...
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19 views

Personal apt-get download server

Disclaimer: Please read complete question before marking duplicate. I am thinking to setup a server on our college's internal network, which can host some very common apt-get packages. As there are ...
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aptsources.distro.NoDistroTemplateException: Error: could not find a distribution template with 12.04.5

I have an issue similar to this one but answer given there does not help. Here's how my sources.list looks like: ############################################################# ################### ...
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7answers
4k views

apt-get upgrade stuck at the same package

Current status I've started to suspect this is not an Ubuntu issue, but related to the internet connection here at my work. Until I'm sure, Im leaving my question below: Original question I'm ...
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1answer
14k views

W: GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not available:

I get the following error when i do sudo apt-get update W: GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not available: ...
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0answers
44 views

404 error apt-get update [on hold]

i have gone through similar posts in this forum but none of those solutions seems to be working for me. I am using ubuntu 13.04. Here is the error that i get when i do sudo apt-get update: > Hit ...
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1answer
61 views

Failed to fetch Sources and Packages, getting 404

I'm trying to update my Ubuntu 12.04.5 LTS prior to doing release upgrade. Unfortunately, it's not working. APT is claiming that Sources do not exist at lv archive repo, which clearly is not true: $ ...
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321 views

Dependency problems installing eViacam on 12.04

I used eViacam in windows, but now I'm using (L)ubuntu 12.04, and I fail to install. I found a guide to install it on ubuntu 11.10, but I have unsolved dependencies. Error runing "sudo apt-get ...
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apt-get stuck at 0% [Connecting to 10.134.216.1] [duplicate]

Update solved: Thanks to gertvdijk, I had to set my proxy settings to automatic instead of none. When I try to update with apt-get update, it's stuck at 0% [Connecting to 10.134.216.1]. Changing the ...
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2answers
43 views

apt-get update error ubuntu 12.04 to version 14

i can't run an update from ubuntu 12.04 to 14, during the update process i got souces error. But my network seems to be ok. How can i fix it? I did the update on my laptop, but i can't do it on my ...
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9answers
92k views

apt-get update fails to fetch files, “Temporary failure resolving …” error

Err http://archive.canonical.com natty InRelease Err http://security.ubuntu.com oneiric-security InRelease Err http://extras.ubuntu.com natty InRelease ...
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2answers
51 views

Can't install anything on ubuntu 14.04 nor updates

installArchives() failed: (Reading database ... (Reading database ... 5% (Reading database ... 10% (Reading database ... 15% (Reading database ... 20% (Reading database ... 25% (Reading database ...
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Cron jobs are disabled on clean installation of 14.04

I have a clean installation of Ubuntu 14.04 and in my /etc/cron.daily/ I see *.disabled files: -rwxr-xr-x 1 root root 15481 Apr 10 09:04 apt.disabled -rwxr-xr-x 1 root root 314 Feb 17 2014 ...
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ubuntu 12.04 LTS failed to update error for sudo apt-get update

I m trying to update Ubuntu. I m very new to Linux platform and require detailed help in doing it. I am a student and they provide me proxy for using the network . I m not able to update as in ...
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1answer
22 views

Ubuntu update from 12.02 to 14.04 stuck and now problem with apt-get update

I'm experiencing the following problem. I was asked from the system to update to 14.04 version of Ubuntu and I confirmed it. While it was working, the installation was giving few errors and ...
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1answer
376 views

disk full — deleting files does not work

My hard disk is so full that I cannot even download a 2 page pdf file from the internet. This is surprising because I don't have very much on this computer (just pdfs from work). More surprising is ...
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1answer
17 views

Replace DEB.SURY.ORG PHP with original

I added Ondřej Surý's repository which was a great help at the time. Now I have issues installing cURL and I think returning to "original" PHP would solve the problem. Currently all my PHP packages ...
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1answer
44 views

How to bring back older version of mesa packages from ppa:xorg-edgers/ppa

I'm trying to install older version of mesa packages from xorg-edgers PPA using following command: sudo apt-get install libgl1-mesa-dev=10.3.0~git20140812.fa5b76e3-0ubuntu0ricotz~trusty ...
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3answers
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Wine installation on Ubuntu 14.04 failed

Installation of wine failed, since migration on Ubuntu 14.04 (from 12.04). I precise that i have tried many things commonly suggest including : sudo apt-get clean sudo apt-get autoclean sudo apt-get ...
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1answer
18 views

How do I resolve unmet dependencies caused by a conflict between Open Office and LibreOffice? Software Update is broken and will not update

I recently uninstalled LibreOffice to install OpenOffice and experienced no problems in using Open Office. Later, I installed a file preview software known as Sushi. When trying to view .odp files, ...
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35 views

sudo apt-get update fails after running add-apt-repository -y ppa:git-core/ppa

I have a freshly installed Ubuntu 14.04. I have an issue trying to run sudo apt-get update on it after running add-apt-repository commands. For example, before running add-apt-repository -y ...
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23 views

Desktop theme installation [duplicate]

Every time I try to install a theme pack I get this code: E: Some index files failed to download. They have been ignored, or old ones used instead. Am I missing files that is required for Ubuntu ...
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2answers
30 views

Using specific python version for apt-get in Ubuntu 12.04 LTS

On Ubuntu 12.04 LTS I have python2.7.3-0Ubuntu3.5 package installed. One of the libraries i am trying to install has dependency on (>=2.7.3.6). I went ahead and installed python 2.7.6 and even python ...
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1answer
57 views

archive.ubuntu.com Repository Error?

I am new to Ubuntu and excuse me if this is a quick fix. I am having issues running apt-get update and the error message that repeatedly comes up is: Ign http://archive.ubuntu.com trusty InRelease ...
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47 views

Another “Some index files failed to download”-error, but there's no 404 error

everyone. I know that there have been other error reports similar to this one, but none with quite my same experience. I'm running Ubuntu 14.04 (32-bit) on an Acer AspireOne with 2 GB RAM, an ...
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1answer
22 views

How to fix tons of broken packages

I apologize in advance for the poorly formated question: I don't know much about linux so I don't know what information to include. I was really lazy about upgrading, and up until yesterday, I was ...
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Ubuntu Software Center not opening, Ubuntu 14.04.1

Whe I try to open the Software Center, it just blinks. When I click on it again, it just closes. How con I solve this problem? Here's what I get when I try to open it using the command. 2014-09-28 ...
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1answer
35 views

How install elementary os desktop on ubuntu 14.04 [duplicate]

I found that this command install elementary os $ sudo apt-get install elementary-desktop but the package cannot be located so please help.
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2answers
10k views

Install MS Truetype Fonts system-wide for all users

I would like to install the MS Truetype Fonts that come through the package ttf-mscorefonts-installer, so I did: sudo apt-get install ttf-mscorefonts-installer Accepting the license, the process ...
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3answers
74 views

Error while running `sudo apt-get autoclean`

When I run command sudo apt-get autoclean I get error message as follows: $ sudo apt-get autoclean Reading package lists... Done Building dependency tree Reading state information... Done E: ...
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29 views

Problems in update ubuntu 14.04

I am using Ubuntu 14.04 alongside Windows 7 in my Sony laptop. I tried to update using sudo apt-get update but the following errors occurred while updating Err http://ppa.launchpad.net trusty/main ...