Questions about the management of packages, in particular the `dpkg` system.
76
votes
11answers
48k views
How do I resolve unmet dependencies?
How do I resolve unmet package dependencies?
Occasionally, when I'm installing stuff, I get an error like the following:
Some packages could not be installed. This may mean that you have
requested ...
13
votes
3answers
3k views
How do I fix this “E:Type '*' is not known on line * in source list …” update error?
Every once in a while I see users having issues to update due to errors like this:
E:Type 'ain' is not known on line 1 in source list /etc/apt/sources.list.d/some-ppa.list'
with varying types/line ...
48
votes
8answers
12k views
How to prevent updating of a specific package?
Because of bug #693758 I'd like to prevent apt-get upgrade and Update Manager from updating the "libgtk2.0-0" package.
How can this be achieved?
9
votes
6answers
7k views
How do I remove a malformed line from my sources.list?
I have unistalled and reinstalled the Ubuntu Software Center as per info I found in a similar thread and I got the same response about line 91 or something like that.
I just tried to upload a screen ...
49
votes
5answers
12k views
Best way to backup all settings, list of installed packages, tweaks, etc?
If I want to make a backup of everything I have done since the fresh install of Ubuntu, what are the possible options? What all should I backup? I want to get all the settings that I changed, all the ...
3
votes
8answers
3k views
Failed to download repository information due to missing CDROM
When updating I got this error message:
W:Failed to fetch cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release amd64 (20111012)/dists/oneiric/main/binary-i386/Packages Please use apt-cdrom to make this ...
6
votes
3answers
5k views
Cannot install any software from the Software Center due to ttf-mscorefonts-installer package error
When I try to install any software from ubuntu software center it comes with error:
An unhandled error occured
There seems to be a programming error in aptdaemon. This is the software that allows you ...
48
votes
11answers
6k views
Why can't I update applications without upgrading the whole OS?
In Ubuntu, once a release is out the software one has installed receives security updates only. In Windows, I can get new versions of programs with new features. How can Windows do this and why can't ...
22
votes
5answers
9k views
How do I enable the “partner” repository?
I keep seeing places refer to the "partner" repository as a place I can get software, how can I enable this repository? Please specify how to do this graphically and via command line.
6
votes
2answers
5k views
How do I enable the “multiverse” repository?
I keep seeing places refer to the "multiverse" repository as a place I can get software, how can I enable this repository? Please specify how to do this graphically and via command line.
14
votes
6answers
3k views
How do I install and manage RPMs?
I have a burning desire to install RPMs onto my Ubuntu installation - is this possible? Can I use Yum - or another RPM Package Management tool?
2
votes
3answers
6k views
What should I do when the GETDEB repository is down?
I'm trying to install programs/files from the getdeb repo but get a "check your internet connection" error. Programs than I've tried include Qbittorrent and Mozilla-Plugin-VLC.
Through the ...
8
votes
3answers
20k views
How do I enable the “Universe” repository?
How do I get to Universe Repository of Ubuntu software as mentioned in Ubuntu 12.04 LTS?
I am installing 12.04 Ubuntu. Please help.
16
votes
5answers
3k views
How do I remove all packages from a certain repository?
For a smooth upgrade from 10.04 to 10.10, I would like to remove all packages which are not in the default repositories (e.g. chromium PPA and third-party repositories). What is the easiest way ...
14
votes
7answers
4k views
How to find and delete duplicated sources list entries?
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?
7
votes
3answers
2k 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 ...
5
votes
1answer
1k 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 ...
18
votes
5answers
2k views
How do I find the package that provides a file?
Simple enough question: is there some shell command (or GUI method) I can use that, given the path to a file on my system, tells me what package put it there? Assuming the file did in fact come from a ...
6
votes
7answers
11k views
Unable to install Skype on 12.10 64bit
I am receiving the following message while I am trying to install Skype:
nidhin@ubuntu:~$ sudo apt-get update
nidhin@ubuntu:~$ sudo apt-get install skype
Reading package lists... Done
Building ...
23
votes
4answers
57k views
How do I install Adobe Acrobat Reader?
I am new to Ubuntu, but I believe I have Ubuntu 11.10 installed correctly. I am trying to install Acroread using AdbeRdr9.4.6-1_i386linux_enu.deb that I downloaded from the Adobe web site. How do I ...
12
votes
2answers
8k views
How do I enable the “backports” repository?
How to enable the backports repository so I can get newer versions of software?
0
votes
1answer
812 views
error occured while running sudo apt-get install -f
I get this error
Sub-process /usr/bin/dpkg returned an error code (1)
so I tried sudo apt-get clean and autoclean.
When I ran sudo dpkg --configure -a:
Errors were encountered while processing:
...
12
votes
4answers
16k views
How do I re-install Network Manager without an internet connection?
I have only wireless connection, one computer with a connection and 4gb usb .
My second computer has no network connection, because I have deleted it from the software center. However, now I want to ...
10
votes
2answers
2k views
How do I add the “proposed” repository?
I'm trying to either test a fix that's been proposed or I want to volunteer to test stable release updates before they are pushed out to general users, how can I enable the "proposed" repository?
13
votes
2answers
24k views
What does Package <package> has no installation candidate mean?
What does the above Error mean? What is an installation candidate?
I was trying to do
sudo apt-get install munin-memcached
and i get this message:
Reading package lists... Done
Building ...
2
votes
4answers
2k views
Unable to use package manager due to “exclusive lock” error
My synaptic package manager in ubuntu10.10 is giving error:
Unable to get exclusive lock
This usually means that another package management application(like apt-get or
aptitude) is already ...
85
votes
9answers
3k views
What's the difference between package managers?
I know Ubuntu/Kubuntu has several programs that can be used to install packages, such as apt-get, aptitude, and synaptic (and perhaps others). What are the differences between them, and which one is ...
63
votes
4answers
12k 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 ...
9
votes
8answers
14k views
How to check if Network Proxy is really applied?
I'm trying to set Network Proxy to use my LAN's internet connection to update packages.
while the proxy settings works on my firefox, but the package manager still cannot connect to Internet. I have ...
10
votes
3answers
2k views
What is the easiest way to strip a desktop edition to a server edition?
We have installed Ubuntu desktop edition on our development server. Now that we have it in a data center we would like to strip it down to a server edition.
Is there an easy way of doing so rather ...
9
votes
6answers
41k views
How to configure proxy authentication to work with Ubuntu Software Center?
I have tried put in apt config Acquire::http::proxy, and in Network>Network proxy with and without user:password@server:port and using environment variables http_proxy and https_proxy. Nothing seems ...
9
votes
5answers
5k views
Adding Debian Sid as Package Repository?
I am running 12.04 Precise beta (upgraded from 11.10 Oneiric) and I added the following line to my /etc/apt/source.list:
deb http://http.us.debian.org/debian unstable main contrib non-free
In order ...
2
votes
2answers
2k views
Unable to install any packages due to unrecoverable fatal error /var/lib/dpkg/diversions
I am currently unable to install any packages. I receive the following error:
dpkg: unrecoverable fatal error, aborting:
too-long line or missing newline in `/var/lib/dpkg/diversions
I have ...
40
votes
5answers
21k views
How can I install just security updates from the command line?
sudo apt-get upgrade installs all updates, not just security updates. I know that I can use Update Manager to select only important security updates, but is there a way to do this from the command ...
12
votes
3answers
6k 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 ...
24
votes
3answers
8k views
Can you install a .deb file via the command line?
Is it possible to install a .deb file using command line, can someone tell me how?
7
votes
6answers
7k views
How can I install 'restricted-extras' offline?
I currently don't have internet access in the house which means I have to go the cafe after a fresh 11.04 install, can anyone provide a link where I can get a .deb package (amd64) of ...
10
votes
0answers
10k views
How do I unlock “/var/lib/apt/lists/”? [duplicate]
I was installing an item using package manager when it froze. I used Alt + F2 to close it.
Afterwards, whenever I try to install anything via apt-get, the terminal reads:
E: Could not get lock ...
9
votes
0answers
298 views
Keep the Ubuntu package version I'm using now [duplicate]
Possible Duplicate:
How to prevent updating of a specific package?
I just installed a package (wine). I want to keep this version I'm using now. How can I disable updates for this package?
...
3
votes
3answers
823 views
Why does Update Manager give me a 404 error with these Google repositories?
I have a red warning sign in my toolbar. When I click on it, it asks me to check for updates. When I check for updates, I get this:
W:Failed to fetch ...
3
votes
2answers
9k views
How to resolve “Failed to download repository information”?
Whenever I try to install anything with the Ubuntu Software Center, the following error appears.
Failed to download repository information
Check your Internet connection.
E:Unable to ...
24
votes
3answers
6k views
How can I tell what package requires a reboot of my system?
I have unattended-upgrade set up on my Ubuntu systems. Occasionally I will log in remotely to one of them and I'll see a message informing me that I need to reboot the system (in order to complete ...
47
votes
1answer
4k views
What is the difference between upstream and downstream when referring to who to go to as a developer?
What is the difference between upstream and downstream when referring to who (or where) to go to as a developer or packager?
10
votes
8answers
2k views
How do I find packages to install via apt-get
After doing a man apt-get and cursory Google search it's not clear how I find new programs to install (from the internet) using apt-get (which is amazingly powerful and simple coming from another ...
32
votes
10answers
12k views
How can I strip down Ubuntu?
I'm trying to fix what I consider a bloated install of Ubuntu. When I install Ubuntu on a machine, I get things that I don't want - web browsers, office applications, media players, accessibility ...
7
votes
2answers
4k views
How to uninstall all but the default Ubuntu packages?
I have a Dell Mini 9 with a 8 GB SSD. I installed Lucid some years ago, and upgraded each time, and now my hard disk is almost full. I see that new default programs get installed but old ones do not ...
14
votes
1answer
3k views
What's the difference between flashplugin-installer and adobe-flashplugin?
I usually installed flashplugin-installer and by chance noticed that in the partner repository the Flash entry says it's not installed. It also says the package flashplugin-installer will be removed ...
5
votes
4answers
22k views
Package system broken - E: Sub-process /usr/bin/dpkg returned an error code (1)
After installing some packages and libraries I have an error on Package Manager, I can't run any update because it says:
The package system is broken If you are using third party repositories
...
0
votes
5answers
11k views
“Package dependencies cannot be resolved” error when installing software
Iam getting a problem while install media player packages.
Package dependencies cannot be resolved
This error could be caused by required additional software packages which are missing or not ...
6
votes
2answers
5k views
How do I enable the “Universe” repository from the command line?
How do you use terminal to enable Universe source?
Or any those 4 from Software Sources: Main, Universe, Restricted, Multiverse
Main is on by default and Restricted is on if durring Ubuntu ...
