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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Cant install program from ubuntu software center-it says“check your internet connnection!failed to download repository information”

says..404 not found W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/raring-updates/universe when enered sudo apt-get update
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1answer
15 views

Updating ubuntu requires changing the download server

So my Ubuntu 14.10 that I have installed on a laptop recently started to behave strangely. It fails to find any new updates while I see that my desktop Ubuntu 14.10 does get new updates about twice a ...
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2answers
28 views

Failed in fetching updates/upgrade (Virtual Box)?

I'm running Ubuntu 12.04 Server (guest machine) on VirtualBox having Windows 7 as host machine. I tried to get updates through sudo apt-get update command but i end-up with the following error codes ...
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20 views

apt-get, unmet dependencies, … “but it is not going to be installed”

$ apt-get install -f -o 'Dpkg::Options::=--force-confmiss --force-all --force-confnew --overwrite-conffiles' --reinstall at-spi2-core Reading package lists... Done Building dependency tree ...
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1answer
21 views

how to reinstall config files in /etc of a package [duplicate]

If I want to reinstall the configs of some package x (i.e. files in /etc), how would I do that? Does apt-get --reinstall install x always reinstalls the configs? Other answers suggest to remove the ...
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1answer
16 views

get list of modified configs

How can I get a list of all modified configs (in /etc), i.e. configs which differ from the originally installed version, i.e. configs where an update would ask about how to proceed with the locally ...
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15 views

how to fix-up system with old configs

My father, at the last dist-upgrade, decided to always choose to keep the old config when the system asked because it detected local modifications (which no-one really did do - I guess some tool must ...
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1answer
14 views

update-alternatives: error: alternative path … doesn't exist

$ apt-get install kde-plasma-desktop ... Setting up oxygen-cursor-theme (0.0.2012-06-kde4.8-2.1ubuntu1) ... update-alternatives: error: alternative path /etc/X11/cursors/oxy-white.theme doesn't exist ...
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1answer
17 views

dpkg error while running apt-get autoclean

I was installing android studio through the terminal but I had to stop the installation by pressing Ctrl+Z. Now I am trying to run autoclean (after a restart) but it won't run.Why is this happening? ...
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13 views

Right way to completely clean up old kernels in terminal

I have been going through various questions about how to clean up old Linux kernels. They all seem to have different answers and they are old, so someone is bound to say the question is too old and ...
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11 views

postgresql-9.4-postgis-2.1 keeps trying to install postgres-9.3

After installing a new box and wanting to test Postgres 9.4 I decided to try to install Postgis through the Ubuntu repositories, annoyingly I am hitting a problem in that it is trying to add other ...
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29 views

unable to install gnome and wine broken package in ubuntu 12.4

I have Dell Vostro 3443 laptop. It has a certified pre-install Ubuntu 12.04.2 LTS 64-bit by manufacturer. I have quite lot of software on it, updated using update manager. Now when I try to install ...
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1answer
19 views

Install Flex without removing other packeges?

I tried to install ettercap tool but it stops with error "configure: error: flex was not found, please install" so i tried to install flex using $sudo apt-get install flex command but it reports to ...
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2answers
16 views

cannot install php5-mysql

I have ubuntu 32bit server (14.04), running php5, I am trying to install php5-mysql but I get a dependancy error. How can i fix this? ~$ sudo apt-get install php5-mysql Reading package lists... Done ...
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0answers
34 views

tried everything on the fourms for this error (in desctription) [on hold]

E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it? I tried every ...
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1answer
10 views

dpkg --status package_name

I'm just playing around with Ubuntu 14.04.1 LTS. I installed emacs, and wanted to double check if it was. ~ 1496 $ dpkg --status emacs dpkg-query: package 'emacs' is not installed and no information ...
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2answers
81 views

Why doesn't apt-get autoremove remove my old kernels?

My boot partition is on a SSD, so it doesn't have room for more than about 8 installed kernel versions, and eventually some kernel update will fail to install because my boot partition is full of old ...
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2answers
33 views

Install program with different run name

I recently installed gfortran with apt-get install gfortran, but it turned out to be the latest version 4.9, which is not compatible with software that demanded gfortran in the first place. So I ...
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0answers
16 views

Enable to install anything after a XAMPP installation in 14.04 LTS

I'm new to Ubuntu 14.04 , i spent some time in it , all was fine till a XAMPP installation : so i can't install anything from command line or from Ubuntu Software Center ! I search a lot for a ...
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0answers
17 views

Ways to download Software through Apt for Extremely Slow Internet?

So I'm in a position where I have two internet connections in my house: Internet #1: caps out so quickly and throttles my internet so low that apt will always return a connection error should I try ...
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3answers
264 views

How can I tell if a CVE has been fixed in Ubuntu's repositories?

Today a couple of buffer overflows in NTP were announced 1, 2. It looks like updating my system to fix these issues is in order. How can I find out if they have been fixed in the Ubuntu ...
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1answer
20 views

After apt-get autoremove my desktop style has changed

After doing apt-get autoremove my unity desktop is messed up. I have menus in the application title bar even though it is not set that way. My system font changed as well and program guis are styled ...
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35 views

Ubuntu 12.04 Sudo apt-get update failing to fetch and unable to connect [on hold]

Failed to fetch http://extras.ubuntu.com/ubuntu/dists/precise/main/binary-i386/Packages Unable to connect to 192.168.1.5:6588: W: Failed to fetch ...
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0answers
16 views

I tried sudo apt-get install, but then don't see the application — kindle paperwhite help?

my ultimate goal is to manage my kindle paperwhite with my chromebook, an acer c720p i don't think it's possible to mount a kindle paperwhite on just the chromebook. so i used crouton to install ...
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3answers
85 views

The following packages have unmet dependencies!

I am writing this because I am very confused about installing postgresql 9.3 on mine Ubuntu 14.04. First I need it for mine Python/Django development, and I ran in to the problem, when i tried to ...
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1answer
26 views

MySQL messed up apt-get?

I tried to install MySQL for my localhost and I managed to break my dependencies, and I can NOT install anything I have tried: Purging MySQL commons, client, server, ect. Removing MySQL commons, ...
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2answers
40 views

Difference between apt-get remove -y and apt-get purge -y? [duplicate]

apt-get remove <name of program> apt-get purge <name of program> and apt-get purge -y <name of program> Research indicates the running either "remove" or "purge" performs the ...
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0answers
21 views

I'm Debian Wheezy user and I want to add wine ppa but there's some error [on hold]

I want to install wine 1.7 so first I add ppa using sudo add-apt-repository ppa:ubuntu-wine/ppa and sudo apt-get update but I can only meet ...
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1answer
46 views

Unable to reinstall MySQL

What I did before this error: I was trying to install mysql for registration in OpenMRS database and it was succesfully, but i forgot my password. And removed mysql packages, i was getting some errors ...
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0answers
31 views

How to solve W: GPG error: BADSIG

i tried to install steamcmd, wich needs ia32-libs. So cuz this wasn't found, i did the following: cd /etc/apt/sources.list.d echo "deb http://old-releases.ubuntu.com/ubuntu/ raring main restricted ...
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0answers
17 views

I Have This Error And I Really Don't Know How To Fix Xubuntu 12.04

Hi I just encounter this problem when opening my update manager It is Impossible to install or remove any software. Please use package manager "Synaptic" or run "sudo apt-get -f " in a terminal ...
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1answer
43 views

“ERROR MESSAGE: Requires installation of untrusted packages” [duplicate]

I'm running Ubuntu 13.04 in VirtualBox 4.3.20. I keep getting the error message shown in the title when I try to download anything in the Software Center. I tried changing servers in "Software and ...
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2answers
33 views

How are Ubuntu packages structured? [duplicate]

When I download a package in Ubuntu, what files does it install on my system and where? I'm just curious about the package structure in general (I searched and it doesn't look like anyone's asked ...
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0answers
15 views

Upgrade a diverted package, dpkg error

I have installed ack (replacement for grep). In debian based systems, since the package name ack already existed (something completely different), the package is called "ack-grep". The install ...
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0answers
45 views

Dependencies issues linux-image-3.13.0-43-generic

Was setting up Postfix but didn't get too far, because Ubuntu returned an dependencies error. Tried to fix this but I cant find the cause to the problem. dpkg: dependency problems prevent ...
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2answers
32 views

Silent installation for apt-get

For work I have to prepare a lot of PCs. I have to shove bunch of sudo apt-get install commands into the terminal - that's quite tedious. I could probably put all of them into sh script (maybe), but ...
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35 views

cant install cuda toolkit

I followed the instructions per this page. Now, I get this error: Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable ...
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1answer
37 views

How to remove unresolved packages (youtube-to-mp3 app)

I am aware that it's a common problem but i am quite new with linux systems and I would like to know how to exactly fix my problem. The following packages have unmet dependencies: youtube-to-mp3: ...
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24 views

g++ and gcc do not work in ubuntu 14.04

After last sudo atp-get upgrade my gcc and g++ don't work and I'm trying to install g++ in my ubuntu 14.04 and I have this error: g++: gcc: What is the problem? sudo apt-get install -f
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0answers
39 views

Ubuntu 12.04: Installing MonoDevelop “broken packages”/“unmet dependencies” error

I am very new to Linux, so please forgive me if the answer to my question is obvious. Since I am running an ARM device and can't install wine, I am trying to install Mono/Develop. The problem is, ...
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1answer
30 views

Unable to locate krb5-admin-server krb5-kdc

I am trying to install Kerberos5 on my ubuntu-14.10-server-64bit, then I type the command: sudo apt-get install krb5-admin-server krb5-kdc I receive E: Unable to locate package krb5-admin-server ...
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1answer
12 views

Lazy right management for package installation

You can install a package (here package), by running sudo apt-get install package Some installation scripts written in bash perform such actions and require the user to enter the password every ...
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0answers
38 views

Why this error, some index files failed to download [closed]

I have this error: E: Some index files failed to download. They have been ignored, or old ones used instead
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1answer
18 views

My repos became corrupted: Unable to parse package file [duplicate]

Suddenly ubuntu 14.04 started to print this: Reading package lists... Error! E: Unable to parse package file ...
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1answer
17 views

How do I resolve apt GPG error NO_PUBKEY?

I do not recall why I have download.opensuse.org, but I am OK just removing whatever is causing this error: W: GPG error: http://download.opensuse.org Release: The following signatures couldn't be ...
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43 views

Can't use sudo apt-get update: Xubuntu 14.04 [duplicate]

When I run sudo apt-get update I get the following errors. Err http: //ppa.launchpad.net trusty/main amd64 Packages 404 Not Found Err http: //ppa.launchpad.net trusty/main ...
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1answer
61 views

problem when update [duplicate]

When I try to update sudo apt-get update I get this W: Duplicate sources.list entry http://download.videolan.org/pub/debian/stable/ Packages ...
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3answers
31 views

update for the terminal package always fail

I'm trying to update my Ubuntu 14.10 but for the last few weeks the package terminal always fail while the rest works fine , this is the log from the sudo apt-get update && sudo apt-get ...
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0answers
27 views

postgresql 9.3 broken after multiple reinstallations

I would like to remove postgresql 9.3 from my Kubuntu 14.04 system, so that I may do a clean reinstall. I think I installed the version that ships with Kubuntu, but I'm not sure because I installed, ...
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1answer
37 views

/var/run/reboot-required not set after unattended kernel update

I've set up unattended-upgrade on an Ubuntu 14.04.1 server. It has installed the kernel .41 over .40 yesterday at 4:10. Automatic reboot is configured for 3:00, so it should have rebooted last night. ...