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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15
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1answer
12k views

How to solve “Extra junk at end of file” when using apt?

I'm trying to configure some proxies for a guest virtual machine and now I'm getting: sudo apt-get update E: Syntax error /etc/apt/apt.conf.d/95proxy:4: Extra junk at end of file The content of the ...
52
votes
3answers
41k views

How can I restore configuration files?

I would like to restore LightDM to its default state, because for some reason /etc/lightdm/unity-greeter.conf is now an empty file. Deleting /etc/lightdm/unity-greeter.conf and then running sudo ...
34
votes
7answers
119k views

Installing and testing CUDA in Ubuntu 14.04

I am uncertain about how to install CUDA in my system. looking around there are many tutorials about cuda on 12.04 LTS and a few on 13.04 and 13.10, but they all talk about acquiring a deb package ...
55
votes
5answers
6k views

Can I see why a package is installed?

For a specific package, can I find out why it is installed? So, can I see or it's manually installed, or that it is installed as a dependency of another package? Or that it is installed as part of ...
23
votes
10answers
97k views

407 Proxy Authentication Required

When I try to install a software using Ubuntu Software center I get: Failed to download repository information Check Your Internet connection When I try to do a apt-get install something, I get: ...
18
votes
3answers
7k 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 ...
338
votes
6answers
319k 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 ...
71
votes
5answers
45k views

Show apt-get installed packages history via commandline?

Is there a way to show the history of installed packages that were installed by apt-get via commandline?
68
votes
2answers
28k views

What is the difference between dpkg and aptitude/apt-get?

When installing a software via dpkg -i packageA.deb, will the dependencies required by packageA be downloaded and installed automatically? How is this different from using apt-get or aptitude?
35
votes
10answers
61k views

How to use a .iso image as a CD-ROM Repository?

I have all images of Debian, Ubuntu and Ubuntustudio as .iso. How can I use them as repository to install my desired packages with sudo apt-get install package-name? I easily mount the .iso file with ...
10
votes
5answers
5k views

How to fix Ubuntu after accidentally uninstalling many packages?

I accidentally removed all the packages starting with the name jpeg with: sudo apt-get remove jpeg* This screwed up a lot of things, removed Unity, Firefox, Flash player etc. I somehow managed to ...
11
votes
3answers
14k views

Apt-get update with an @ in password error

I want to update ubuntu 11.04 throught apt-get. So I added the following lines in apt.conf export http_proxy=http://username:password@proxyserver.net:port/ export ...
1
vote
1answer
3k views

dpkg-divert: error: rename involves overwriting `/usr/lib/xorg/protocol.txt' with different file `/usr/lib/xorg/protocol-precise.txt', not allowed

I just installed Ubuntu (12.04.4) and I upgraded to 13.10 I have no idea how to fix this :/ $ sudo apt-get install -f Reading package lists... Done Building dependency tree Reading state ...
43
votes
6answers
32k views

Where can I look up my update history?

Is there a place where I can look what updates I've installed?
77
votes
5answers
55k views

Why am I getting authentication errors for packages from an Ubuntu repository?

I'm experimenting with VPNs, so I wanted to install pptpd. john@desktop:~$ sudo apt-get install pptpd [sudo] password for john: <snip> The following extra packages will be installed: bcrelay ...
17
votes
5answers
13k views

How to get the native version of Spotify running?

A while ago Spotify (the streaming music service) came out with a preview for Linux of their client. I have successfully been able to run it on 10.04. Now that I am on 10.10, I cannot seem to find it ...
15
votes
2answers
2k views

What is apt-fast and should I use it?

Several times over the past couple years, I've heard of people using apt-fast for updating and installing packages, but I'm not really sure what it does. I think I've traced its origin to this forum ...
136
votes
6answers
63k views

Is aptitude still considered superior to apt-get?

When I first started with Ubuntu using aptitude was the 'in-thing', with some stated improvements over apt-get. Am I correct in saying that apt-get has now 'caught up' with aptitude, and it makes ...
43
votes
2answers
36k views

apt get install vs pip install

I am a bit confused about the cases in which the above commands must be used when downloading python packages. I was trying to download a package named pyudev in accordance with an answer with this ...
13
votes
2answers
5k views

How to forbid a specific package to be installed?

Can I configure Ubuntu to never install a specific package even if it is required by another package I install?
25
votes
13answers
58k views

Cannot install ia32-libs

I don't know why I can't install ia32-libs. It claims for a dependency that cannot be found on repos. junior@mediacenter:~$ sudo apt-get install ia32-libs Reading package lists... Done Building ...
8
votes
5answers
20k views

How can I access my Ubuntu phone over ssh?

Whenever I try to run apt-get install openssh-server I get the following errors: root@ubuntu-phablet:/home/hablet# apt-get install openssh-server W: Not using locking for read only lock file ...
19
votes
2answers
20k views

dpkg: error: parsing file '/var/lib/dpkg/available' near line 0

Been trying to install git-core package for almost more than half a day now. Everytime i do, I get this error: dpkg: error: parsing file '/var/lib/dpkg/available' near line 0: newline in field name ...
33
votes
7answers
72k views

apt-get update very slow, stuck at “Waiting for headers”

I have looked at similar questions: Stuck at 0% [waiting for headers] (apt) apt-get update stuck on "Waiting for Headers" However neither one of them answer my problem. I am running ...
16
votes
0answers
6k views

How to find and delete duplicated sources list entries? [duplicate]

Is there a command line to find and delete duplicated entries in the /etc/apt/sources.list file? or is this possible via synaptic perhaps?
3
votes
2answers
4k views

How can I avoid “please insert CD/DVD” error when updating Ubuntu?

I can't update 12.04 LTS. The Update Manager shows this: CD/DVD 'Ubuntu 12.04 LTS _Precise Pangolin_ - Release i386 (20120423)' is required Please insert the above CD/DVD into the drive ...
123
votes
6answers
135k views

How can I update my nodeJS to the latest version?

I have installed nodeJS on Ubuntu with following code sudo apt-get install nodejs Since I am a new user for ubuntu I also ran this code too sudo apt-get install npm Now when I type nodejs ...
67
votes
8answers
41k views

Is it possible to get a list of most recently installed packages?

Is it possible to get a list of packages that were most recently installed through apt-get?
62
votes
9answers
25k views

Generating list of manually installed packages and querying individual packages

I'd like to get a list of packages installed manually by apt or aptitude and be able to find out whether a foobar package was installed manually or automatically. Is there any neat way of doing that ...
68
votes
5answers
150k views

How to uninstall LibreOffice?

Which package should I remove to completely remove libreoffice? I have no need for office tools. That's the one gripe I have with package managers like apt, there's no simple way to perform the ...
30
votes
3answers
12k views

How do I cherry pick packages from a PPA? [duplicate]

Is there a way to cherry pick packages from a ppa repository you add? That is, to exclude some from updating while including others? For example, I want just the chromium-browser package from this ...
18
votes
1answer
5k views

Why does my 64-bit system look for 32-bit repos?

I've got a 64-bit 12.10 install on my Laptop. When running apt-get update, it downloads package lists for 32-bit packages (as well as source and 64-bit package lists). Why does it look for 32-bit ...
16
votes
3answers
9k views

APT wedged by kernel version mismatch

Apt is seemingly unable to do anything useful for me, repeatedly giving messages of this form: dpkg: dependency problems prevent configuration of linux-server: linux-server depends on ...
4
votes
2answers
38k views

Ubuntu 13.04 - installation Nvidia driver

I've installed Ubuntu 13.04 on my laptop HP 6720s with video card Intel 965 chipset Intel gma x3100. After the boot the classic purple screen appear and before the login page the screen become black ...
10
votes
3answers
5k views

How to bypass/remove/disable the untrusted package authentication

First the image: then me saying "Say What!!.. How the..What the..??". Basically I am stunned. How can I disable/bypass/remove/explode the option for the untrusted packages not letting me install ...
32
votes
2answers
31k views

What does “No apport report written because MaxReports is reached already” mean?

When installing a Linux kernel image package, I got, amongst other errors: No apport report written because MaxReports is reached already Where can I delete old reports so that Apport can ...
12
votes
2answers
47k views

Configure proxy for APT?

I need to configure proxy. There wasn't apt.conf file in etc/apt/ so I've created it using nano. But I don't understand what I need to write there. I've written http_proxy = ...
5
votes
2answers
2k views

Can I use apt-get or aptitude to install software to non standard location?

When I install a software using apt-get it installs to default locations i.e to /usr/bin, /usr/lib, /usr/share and etc. For example when I install "Meld Diff Viewer" using sudo apt-get install meld ...
1
vote
0answers
3k views

Update manager generates 404 error while attempting update. Will not update [duplicate]

Possible Duplicate: How can I fix a 404 Error using a PPA? While running update manager in Ubuntu 11.10 Oneric Ocelot I receive this list of errors. > W:Failed to fetch > ...
27
votes
4answers
60k views

How can I reinstall Apache HTTPD after deleting some of the configuration files?

I recently was messing around with my Apache config and wanted to reinstall so I could start from fresh. I followed some forum posts about reinstalling the apache2 package and this ended up deleting ...
74
votes
4answers
150k views

Will apt-get dist-upgrade upgrade my system to newer version?

I am using Ubuntu 12.04 right now. If I use command sudo apt-get dist-upgrade will that upgrade my ubuntu to 12.10? Does that mean I am not using the LTS version after that? I don't want to use Ubuntu ...
24
votes
1answer
10k views

Should I use tasksel, tasks in APT or install regular metapackages?

Tasksel or plain Apt? In the past I've always used tasksel to install so-called "tasks". It seems, however, that this has been integrated in APT: apt-cache dumpavail | grep ^Task [...] snip Task: ...
51
votes
3answers
48k views

How can I install a package without installing some dependencies?

I'm trying to install the package LaTeXila, and the output looks like this: $ sudo apt-get install latexila --no-install-recommends Reading package lists... Done Building dependency tree ...
26
votes
8answers
3k views

How to make a package manager wait if another instance of APT is running?

I have seen many softwares such as Update Manager and Synaptic Package Manager, they wait if some other program is using the /var/lib/dpkg/lock and is locked. How can we do this through the Terminal? ...
13
votes
5answers
198k views

Apt-Get Update: failure to fetch; can't connect to any sources

I realize there are dozens of "apt-get update: failure to fetch" questions (I read through all I could find), but my present circumstance is unique to 12.04 and it affects all sources; not just ...
18
votes
4answers
4k views

How to determine the size of a package while using apt prior to downloading?

When using apt-get install <package_name>, and there are dependencies that need to be downloaded, the terminal outputs names of additional packages and total size, and asks for confirmation ...
6
votes
2answers
17k views

Installing Wine on 64 Bit

I have tried to install wine through the software center and terminal and I get this error. chris@ubuntu:~$ sudo apt-get install wine1.5 [sudo] password for chris: Reading package lists... Done ...
3
votes
3answers
12k views

apt-get 403 Forbidden

I've start a new job today and I am trying to set up my machine to run through their Windows server. I've managed to get a internet connection through the server now but now I can't run apt-get ...
1
vote
1answer
7k views

Update information outdated, “Failed to fetch cdrom” [duplicate]

I have a warning triangle on the top of my screen. When I click on it, it says that my update information is outdated. When I type sudo apt-get update && sudo apt-get upgrade into a terminal, ...
4
votes
2answers
3k views

Why I do get error 101? How is my DNS involved?

I was getting Update information is outdated alert. I tried sudo apt-get update and got these errors: W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/raring-security/Release.gpg Cannot ...