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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Fixing some dependency issues in ubuntu 14.04LTS on a 64bit system

I have checked out the questions that seem to be related to this issue but none of the suggested fixes work. Here is the output from the following command: sudo apt-get -f install Reading package ...
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171 views

How do I install KDE on Ubuntu 15.04?

I am trying to install KDE on Ubuntu 15.04. I ran sudo apt-get install kubuntu-desktop and got this output: http://paste.ubuntu.com/11858746/. I ran sudo apt-get -f install and got this output: ...
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25 views

How do I build a deb that is fully compatible with an offical deb?

I've downloaded the source of postgresql-9.3 by doing: apt-get source postgresql-9.3 Then I've done my alteration to the configuration step and I've successfully built and tested the binaries. Now, ...
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184 views

Apt-get & software updates failure: Unmet dependencies with kernel package, no diskspace?

Using ubuntu 14.04 LTS with GNOME Classic desktop i can't install the latest upgrades. Most important update is ubuntu base linux kernel updates. Error message: Check if you are using third party ...
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63 views

downgrade libsqlite3

I get some errors which hint to libsqlite3. Therefore I want to downgrade libsqlite3 on Ubunutu 14.04 root:/usr/src# dpkg -l | grep sqlite ii libqt4-sql-sqlite:i386 ...
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package remove fail. postgresql-contrib-9.1: subprocess installed pre-removal script returned error exit status 127

Do you want to continue? [Y/n] y (Reading database ... 404522 files and directories currently installed.) Removing postgresql-contrib-9.1 (9.1.15-0ubuntu0.12.04) ... ...
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82 views

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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23 views

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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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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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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468 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 ...
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291 views

Problem with umnet dependencies

I did a fresh installation of ubuntu 14.04, did updates and upgrades, when i tried installing softwares smplayer, synaptic package manager, ubuntu-restricted-extras, gdebi, etc.. getting a umnet ...
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169 views

How to hide/disable “packages have been kept back” list

I'm on Ubuntu Server 14.04.2, and when I run sudo apt-get upgrade I get: Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done The ...
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796 views

Upgrading from 14.04 LTS (Trusty Tahr) to 15.04 (Vivid Vervet)

How long does it take to upgrade from 14.10 LTS to 15.04 ? The procedure of Saving installed packages is going on for last 18 hrs on my system. I have chosen the option of keeping all my personal ...
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138 views

enabling proposed repos in 15.04 server fails to update packages

i am trying to use the proposed repo of vivid on ubuntu 15.04 server system. user@controller:~$ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=15.04 DISTRIB_CODENAME=vivid ...
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23 views

how to install packages which is not in the cache with python

i install packages in my application using python apt. Some example: import apt cache = apt.cache.Cache() pkg = cache["brukkon"] pkg.mark_install() cache.commit() In this example, brukkon is not in ...
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Coherence between package version and served files

Currently, I am trying to understand how distro maintainer build and choose names for their packages and there is (from my point of view) a lack of coherence for a specific package. Take the libzmq ...
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1k views

Cannot install libhdf5-dev

Trying to install pbh5-tools on my Ubuntu 12.04 virtual machine. I have encountered countless problems trying to get the program to install. I get the error: In file included from ...
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239 views

APT-GET did NOT download package correctly via APT-CACHER

I follow this to setup the apt-cacher but it did NOT download some files correctly via wget(i think it is). In my previous post, I'm going to install Oracle Java 8, and the apt downloaded a html page ...
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200 views

Unpacking linux-image-3.16.0-34-generic (3.16.0-34.47) over (3.16.0-34.45)

I want to change Java 8 to Java 7. I planned to Remove Java 8 First. I run the Following cmd sudo apt-get purge oracle-java8-installer I got the Following Error Reading package lists... ...
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438 views

Broken boot ubuntu 15.04 - Adding repository from live-usb

When I installed ubntu 15 I pressed ctrl c and the installation was interrupted. I got the error about kernel-panic. I try to do a boot-reapir using a live-cd. I ran it with purge grub as was ...
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454 views

E: Sub-process /usr/bin/dpkg returned an error code (1) Ubuntu 15.04

Tried to use apt-get commands and was getting this back from my VPS. Not sure where to go, I have tried a few things but no luck. Thanks, Zac. Out put of sudo apt-get install default-jdk: ...
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621 views

Unable to install libgnutls-dev

Seem that I have dependency error but don't know how to resolved it. I'm on Ubuntu 14.04 and tried to install libgnutls-dev but got an error as follow: lutfijw@HTPC:~$ sudo apt-get install ...
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270 views

How to create local mirror for Ubuntu inside docker container?

I want to create local mirror for Ubuntu inside docker container. Here is the link that I am following from Git hub. Now the issue is that it is taking too much time to download the whole ...
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181 views

Manual Recovery

I installed ubuntu 14.04.02 on my netbook. So now I've got 2 os on my netbook, windows 8 and ubuntu. When I boot my netbook and choose to open on ubuntu, it says serious errors were found while ...
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2k views

Ubuntu 15.04 update-initramfs fails after packages installation

I have a big script I use in fresh installs since 14.10, but when using it on Ubuntu 15.04 I get an initramfs error. The script looks like this: echo "Starting configuration" && echo ...
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204 views

Fix unmet dependencies libc-bin

I am trying to install some programs, but I met with unmet dependencies. For example, sudo apt-get upgrade yields Reading package lists... Done Building dependency tree Reading state information... ...
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20 views

Item cannot be installed or removed until the package catalogue is repaired. Gives error when I try to fix

I know this question has been asked already here but I am asking since i tried to run all these commands as told in the this solution which are: sudo apt-get upgrade sudo apt-get clean sudo apt-get ...
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90 views

Problem with Updater & Software centre : Ubuntu 12.04 LTS, Reading package list fails when I apt- update

I recently was runnning the auto updater and I got the red circle with a white line within saying: A problem occurred when checking for updates After reading a few of the forums here, I tried to ...
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70 views

apt-get configured to use proxy with some sources but not others

Can apt-get be configured to use a proxy with some sources but not with other sources? I have a Ubuntu 14.04 trusty server on an AWS EC2 instance. It needs to use a proxy to get to ...
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230 views

The following signatures couldn't be verified because the public key is not available: NO_PUBKEY

When I look for my error key number 0429ACCAF7AA50B3, it is not in the database, thus I cannot receive or generate anything even none of this did not work: ...
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Regarding Too many errors in /usr/bin/dpkg returned an error code (1),

Output of command on terminal at Ubuntu 14.04 LTS sudo apt-get install python No apport report written because MaxReports is reached already No apport report written because MaxReports is ...
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608 views

dpkg: error processing procps (--configure)

How can I fix this issue? user@server:/var/lib/dpkg/info$ sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done The following packages ...
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59 views

apt-get should not download packages that are locally available

I am trying to install some packages. I have already downloaded the .debs to my local repo and apt is aware of it since apt-cache policy shows the package, but when trying to install the package, it ...
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1k views

Failed to add GPGKEY at http://cuda-repo/repos/GPGKEY to apt keys

I am trying to install JetPack-1.1.0 to my Ubuntu 14.04.2 x86_64 laptop. When the installation was at between %80 and %90 it warned me for installation of cuda-toolkit-6-5 cuda-cross-armhf-6-5 failed. ...
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311 views

apt-key fails behind proxy

Our company uses a filtering proxy which is setup correctly in /etc/environment and apt.conf.d Regular internet access via http and https work but if I try to import a pgp key from ...
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651 views

apt-get update “Ign” lines for component “inRelease”

I'm working with a local mirror of the Ubuntu distribution, using the 'apt-mirror' package, and I'm seeing "Ign" lines when I # apt-get update from a 14.04 system. On the system that has the mirror, ...
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140 views

haskell-platform unmet dependencies

Trying to install haskell-platform by using sudo apt-get install haskell-platform on 14.04 LTS. The error I'm getting: jared@jared-N550JK:/etc/apt$ sudo apt-get install haskell-platform Reading ...
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234 views

Google Chrome installation failed on Ubuntu 12.04 LTS

I have only recently started using Linux and Ubuntu. I have in the past always had Windows computers. All I want to do is be able to watch Netflix on my computer but as you know you need to download ...
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266 views

apt-get update Unable to connect to and fetch error

I can't seem to be capable of updating or install the packages on my uBuntu 14.04 LTS Minimal VPS server. Every time i run apt-get update i get the following long message: root@cryptogates:~# ...
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2k views

E: Package 'openswan' has no installation candidate

I am on Ubuntu MATE 14.10, I have all my software sources turned on in 'Software & Updates', I have run apt-get update, etc, but I am still getting the following error when I run sudo apt-get ...
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44 views

Key exists already but getting GPG error

I am using Ubuntu 14.04 64 bit desktop,and updating worked fine before, but suddenly it doesn't (it is a long time from last updating, so I can't ensure what operation leads this problem). As you ...
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212 views

Error 404 when trying to install the package linux-image-extra

I am trying to install the package below on ubuntu/trusty64 apt-get install -y linux-image-extra-`uname -r` and getting the following error Err http://security.ubuntu.com/ubuntu/ ...
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150 views

cannot install vlc

I got this error when trying to install vlc: 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 ...
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249 views

Update PHP without removing every dependency

I'm having an issue where I just need to do something as simple as upgrade my PHP version from 5.3 to 5.6. The only issue is that Plesk is installed and I don't know how to upgrade it without Plesk ...
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107 views

Cannot remove openjdk without having an older version installed, how can I do so?

I am running Ubuntu 14.04.1 64-bit with Oracle Java installed, hence I would like to uninstall openjdk, but when I try to uninstall it via the command line I get the following output: ~$ sudo apt-get ...
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rsyslogd hangs upon apt-get 14.04

If I do any apt-get install, it hangs permanently (have to CTRL-Z, CTRL-C does nothing) and then corrupts dpkg (have to run dpkg --configure etc) and I have to kill all rsyslog related processes. I've ...
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145 views

Rebuild OpenSSL with -DPURIFY

I'm trying to rebuild OpenSSL according to these instructions. I'm having a problem with the very first line: sudo apt-get build-dep libssl-dev This response is given: Reading package lists... ...
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75 views

Boot-repair issue with Ubuntu 14.04

My VPS works absolutely fine but has had a few issues with booting since I upgraded it to Ubuntu 14.04 from 12.04. It will not boot after being switched off. So I Googled the problem and it looked ...
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140 views

How to preseed a package's debconf values when installed as a dependency?

I want to install packages unattended and need to store the required debconf values before installation. Is there a hook to run a command from the currently installing package that is executed ...