APT (Advanced Packaging Tool) is the standard software package management system for Debian and its derivatives.

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Debian apt pin priority for one package

On Debian wheezy pin priority for all (*) packages works fine, like this: #Package: php-pear php5-* redis-* #Pin: release l=packages.dotdeb.org #Pin-Priority: 100 Package: * Pin: release ...
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What is the difference between the “jessie” and “jessie-updates” distributions in /etc/apt/sources.list?

The debian wiki page for the apt sources list gives this example file: deb http://httpredir.debian.org/debian jessie main deb-src http://httpredir.debian.org/debian jessie main deb ...
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apt-get update => could not open dpkg lock file (5: Input/output error)

If I run "sudo apt-get update" I get following error messages E: Could not open lock file /var/lib/dpkg/lock - open (5: Input/output error) E: Unable to lock the administration directory ...
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fglrx on Debian stretch

How do I install the fglrx driver on Debian stretch? The package tracker states that there is no package available right now, so I added Sid, pinned on 100. When I try to install fglrx-driver now, ...
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Installing perl modules

I was trying to install a perl module Future::Utils on my Ubuntu machine but didn't find the exact command. I tried this command but it didn't work: sudo apt-get install libfuture-utils-perl I have ...
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Private APT repository not upgrading

I am involved in developing a product based on Linux which was to be utilizing APT as an auto-update system. I've created 3 versions of the package in .deb format. They have the same package name ...
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Installing hostapd via apt-get and dpkg results in different boot behaviour

I am trying to set up a Wifi hotspot on Debian 7.6. After reading a few tutorials, I have managed to get the Wifi working by installing and configuring hostapd. I need to install and configure this ...
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apt-get doesn't recognize TeX as already installed

I tried installing TexLive by downloading the install-tl-unx.tar.gz file from here and extracting it, then doing sudo perl install-tl and I added the following to /etc/profile: ...
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Debian 7.8 and samba libwbclient0 conflic

I recently ran dist-upgrade on a server that did not see any updates for the past year. Now samba has stopped working. I have no idea what happened but it looks like samba somehow was uninstalled ...
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How can I get all `apt-get` commands that I've issued since I launched a Debian server?

I need to go back to basics on a VPS but I don't want to wipe it clean. I understand that Debian stores apt-get commands somewhere, but these are separated in to separate log files. Is it possible ...
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129 views

Cannot install wine and playonlinux

I am in elementary OS Freya. sudo apt-get install wine Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may ...
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how to get 32 bit kernel headers in 64 bit debian jessie installation [duplicate]

aptitude search linux-headers provides this: p linux-headers-3.16.0-4-all - All header files for Linux 3.16 (meta-pack p linux-headers-3.16.0-4-all-amd6 - All header files for Linux 3.16 ...
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How can I install youtube-dl on BOSS linux?

I try to install youtube-dl on BOSS Linux by following commands. $ sudo add-apt-repository ppa:nilarimogard/webupd8 $ sudo apt-get update $ sudo apt-get install youtube-dl $ sudo pip install ...
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186 views

Mediatomb apt source on Debian Jessie

I would like to install Mediatomb on my Debian Jessie. I keep seeing everywhere that people install it as simple as sudo apt-get install mediatomb but apparently I don't have mediatomb in my ...
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29 views

Tasksel vs metapackages

Some debian applications are installed via tasksel, rather than the traditional apt tool. What is the benefits/differences between the methods, when we already have the option of meta-packages?
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Why does this command remove more packages than I want it to?

When I run the following command: # apt-get purge unity-scopes-m* I expect it to delete the following packages: unity-scope-manpages unity-scope-musicstores unity-scope-musique Instead, it wants ...
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unmet dependencies after an upgrade to Debian 8

After upgrading an amd64 Debian 7 to 8 I can not upgrade grep. What do I have to do to fix this? root@xyz:~# apt-get upgrade Reading package lists... Done Building dependency tree Reading ...
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Suppress questions by apt-get

I need to install a package in a script. This process needs to write over some already existing configuration files. Right now even though run with DEBIAN_FRONTEND=noninteractive and --force-yes -y, ...
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111 views

sudo apt-get update doesn't work

I am using ubuntu 14.04 LTS. when I run sudo apt-get update command in terminal, following error will appear E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) ...
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Depends: libqtgui4 (>= 4.6.2) but it is not installed

I want to install the Wing IDE for python. When I executed it, dpkg showed me some qt packages that were not installed. I installed a few of them via Synaptic Package Manager, but the rest cannot be ...
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43 views

No java command after sudo apt-get install default-jdk

I had some trouble with java so I manually removed the contents of /usr/lib/jvm directory. That was probably not a good idea, cause I have now bigger trouble to make java working again. I tried to ...
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Add Repository In Debian 6.0.8 [duplicate]

I am trying to add a repository in Debian 6.0.8 sudo cat /etc/debian_version 6.0.8 sudo apt-get install software-properties-common E: Unable to locate package software-properties-common sudo ...
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110 views

“Unable to find expected entry 'main/binary-i386/Packages' in Release file”

I added a third party repository and now I'm seeing this warning while updating my packages list: W: Failed to fetch http://codezen.org/debian/dists/sid/Release Unable to find expected entry ...
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How to run a command before download with apt-get?

How can I run a command before apt-get starts to download a package? I know about the dpkg pre-invoke hook ( hook a script to apt-get ), but that seems to be run after the download. $ apt-get update ...
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apt-get autoremove removes important packages

After some failed attempts to install the nvidia binary blob, I returned to debian's nvidia packages. But now aptitude wants to auto-remove many packages: ant ant-optional apper apper-data fonts-lyx ...
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How to distinguish if a systemd unit is run by apt-get or during boot?

Can one somehow distinguish if, a) the daemon was started during boot or, b) (re)started by an apt-get install or upgrade? Can this be distinguished from within the daemon itself? The use case is ...
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Linux doesn't recongnize recent installations

I'm working inside a virtual machine, and I don't know why software installation does not work. I have to restart my machine, but that is not an option.
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157 views

Why doesn't wicd install its daemon?

Yet again, I've found myself banging my head against the wall after having issues with wicd (the most consistenly buggy piece of widely-used software I've ever used). This time, after installing ...
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Why does python still work after being removed?

On Debian 8 jessie I've removed python: perry@perry:~$ sudo apt-get remove python Reading package lists... Done Building dependency tree Reading state information... Done Package 'python2.7' ...
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How to uninstall gnome-bluetooth dependancies?

As you can see below, I installed (and then deleted) gnome-bluetooth on my Debian Xfce desktop. It's come with a lot of librairies and autoremove doesn't get rid of them. Is there an automatic way to ...
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How to update an offline Debian 7 to Debian 8

I have an offline Debian 7 server, which I would like to update to Debian 8 at some stage, but I fear I'll do it wrong, so here I go ask you first for best practice to go about this. Currently the ...
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uninitialized constant XML::SaxParser / Error retrieving bug reports from the server

I use an old LMDE (Linux Mint Debian Edition) installation that went through several repository changes. I've originally tracked LMDE's repositories, then at one point switched to Debian Testing ...
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My apt-get installer has no autocompletion for some packages

I have installed Kali Linux v1.1.0 (Debian based). Filename completion for sudo was not running at the beginning, so I added: complete -c sudo And everything seems to autocomplete now, except for ...
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Getting the diff of a package update

Before (or after) updating a package with apt-get update, how can I view the source code diff between the the new and the old version?
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Why does apt-get think packages “are no longer required”

I ran apt-get install raspberrypi-net-mods on my Raspberry Pi running Raspbian and got the following message:- The following packages were automatically installed and are no longer required: git ...
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GPG error with http://volatile.debian.org : 'The following signatures were invalid: NODATA 1 NODATA 2'

I am currently trying to add a new repository to apt-get but it is not working. I'm adding it like this: deb http://volatile.debian.org/debian-volatile wheezy/volatile non-free Then I get this ...
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Device tree compiler won't update

I have a problem on Ubuntu 12.04. I am trying to flash a Toradex Colibri T20 with Linux, following these instructions: http://falstaff.agner.ch/2014/03/16/colibri-t20-upstream-linux-kernel/. However, ...
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error when install library ubuntu 10.10

I have installed Ubuntu 10.10 I have chosen this Ubuntu because I want to run openbts 2.6 on this machine. My problem is that when I run this library: sudo apt-get -y install libfontconfig1-dev ...
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How to solve nsf-common related error when install zsh in ubuntu?

Everytime I install some kind of package, at the last phase, apt-get install could return a common-nfs related error. Why the installation can't be done without this error? detailed pastebin here ...
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How to manage Debian source code packages using aptitude or apt?

Background: I would like to regularly download and install source to /usr/src for certain important development packages. (For me: Qt5 and friends.) I have seen this other question about one-time ...
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“Description Language:” field in apt-cache showpkg

The output of apt-cache provide a field named "Description Language:" in about every file, and - as far as I was able to find out - they all are empty. From man 8 apt-cache For the specific ...
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Broken System due to upgrading libc6

I am using Kali, and I tried to upgrade libc6, because it comes with a lower version than I need. After downloading the latest package from the debian repo ...
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481 views

Why isn't apt-cache policy output piped?

Cannot get why $ apt-cache policy foo N: Unable to locate package foo but $ apt-cache policy foo 2>&1 | grep . is empty. Where in the latter call am I doing the wrong assumption? The ...
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Upgrading packages automatically

I'm fairly new to using servers (debian 7) and I'm currently running cron-apt to e-mail me when there are new upgrades available. Is the following command safe to run when new upgrades are shown? ...
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106 views

PHP upgrade after installing phpmyadmin

I had a Debian Server with Apache 2.2 and PHP 5.3 I installed phpmyadmin (sudo apt-get install phpmyadmin). Now, the versions of Apache and PHP have been upgrade (2.4/5.6) Is this possible? How can ...
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Debian jessie 8 clean installation

I've installed debian jessie from net iso (~240Mb). On the last installation wizard step, i've unchecked all checkboxes (no kde, web, mysql, and system utilities also). Well right after that "apt-get ...
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Is there a way to see why certain dependency of a package is needed?

I was about to install mysql-client-5.5 package which has debianutils package as a dependency. However, I first checked which binaries are installed with debianutils package. It installs nine ...
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Cannot install packages in Mint: “Unable to fetch some archives”

I'm running Linux Mint 16 (Petra). I was able to install packages normally until, at least, april 18th (two weeks ago). Since yesterday I cannot install packages anymore. For example, if I try to ...
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Debian jessie mounted pendrive not trusted by apt

I have installed debian jessie from unetbootin pendrive and without network drivers. After booting from HDD, I have added mounted pendrive to apt sources (with file:// prefix). I have two problems. ...
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Is it possible to “install” a hook that will be called before removal of a package?

Background: on Ubuntu I like to prevent sshd from logging errors when trying to load the ssh_host_dsa_key file when I remove it. There appears to be no configuration option in sshd_config to prevent ...