The Ubuntu Software Center gives you instant access to thousands of open-source and carefully selected free applications.

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71
votes
3answers
60k views

How do I deal with “unauthenticated sources” errors in the Software Center?

Any install that I'm trying through the Software Center is telling me: Requires installation of untrusted packages: The action would require the installation of packages from not authenticated ...
57
votes
11answers
7k 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 ...
32
votes
4answers
2k views

Are the programs in Ubuntu Software Center spy-ware free?

In Ubuntu Software center there are different sections for programs Provided by Ubuntu Canonical Partners For purchase I know all of these are open-source; but is there any validation process ...
31
votes
4answers
6k views

How can I set the Software Center to install software for non-root users?

How can I set the Software Center to allow non-root users to install stuff from the Ubuntu repos without having to type in their password? I'm fully aware of the security implications, and I am ...
30
votes
7answers
5k views

How to remove the “For Purchase” section from the Software Center?

The Software Center has a section of For Purchase programs —see screenshot below—, which is annonying me every time I want to install something. Is there any way to remove or hide these ...
28
votes
11answers
6k views

Are there alternatives to software center?

Are there any GUI alternatives to the Ubuntu Software Center with Fast application loading/Low startup time Fast search Low weight/size Application purchase facility
28
votes
6answers
3k views

How do I install an application by DEB file for a single user only?

When installing applications via the software center or by a DEB file they will usually be installed system wide for all users. Is there a way to install an application for a single user only?
25
votes
2answers
3k views

Should I install programs from a source tarball (`.tar.gz`), from the Ubuntu Software Centre, or from elsewhere?

There are several ways to install an application in Ubuntu: You can download a source tarball (generally a .tar.gz or a .tar.bz2 file) and install it manually. (See How to install a .tar.gz (or ...
25
votes
6answers
18k 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.
24
votes
6answers
3k views

Why the software center doesn't allow multiple downloads?

I was wondering why the software center doesn't download all the requested apps and install one by one as they finish to download. Or instead why the software center doesn't download an app while the ...
23
votes
1answer
1k views

How can I browse the Ubuntu Software Centre online?

I'd like to access entire contents of the Ubuntu Software Center online. Is there anyway to browse the Software Center online?
23
votes
5answers
1k views

Is there an “unofficial” software center with all the PPAs?

Many questions are answered simply with add this repository and install. I understand that Ubuntu developers cannot quickly verify all packages and make them available in official repositories. But ...
22
votes
4answers
98k 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.
21
votes
2answers
1k views

How do I install software using the Ubuntu Software Center?

The title says it all. I'd like to know how I can install software - an example is the Chromium web browser.
20
votes
1answer
1k views

Why are some programs in the Ubuntu Software Center not open source?

I'm concerned about the amount of proprietary software that seems to be part of Ubuntu now. I've noticed quite a few apps that in the software center are listed as "Licence: proprietary". Obviously ...
20
votes
3answers
1k views

What is the process for getting paid apps into the Ubuntu Software Center?

What is the process for getting paid apps into the Ubuntu Software Center?
19
votes
1answer
245 views

Will the software center offer an option to donate?

Will the software center offer an option to donate to the developer/s of a particular application?
18
votes
1answer
548 views

How can I install the $0 applications from the Ubuntu Software Center with apt-get?

In the Ubuntu Software Center, there are lots of $0 apps that I can 'purchase': for example: crazytoad pinball-bakno colorsudoku As these applications are free (as in beer), I wonder how I can ...
18
votes
5answers
44k views

How do I open “apt” links in Firefox on Lubuntu?

Many answers on Ask Ubuntu direct to links like this that in Xubuntu opened in Ubuntu Software Center. In Lubuntu I get this error message: In Firefox-Preferences/Applications cannot see something ...
18
votes
2answers
242 views

How to comply with this guideline for submitting an application to the Software Center?

I was reading through the Ubuntu Developer Programme Agreement for submitting applications to the Software Center and stubled across the following clause: 3.1 You must first test Apps you submit ...
17
votes
3answers
2k views

How to remove the big banner from Software Center?

In the new version of Ubuntu Software Center there is a big banner under toolbar. It's useless for me. How do I remove it?
17
votes
2answers
383 views

How is tax handled for purchases from the Ubuntu Software Centre?

I've just created an account to submit an application to the Ubuntu Software Centre and the agreement says: "You are responsible for determining applicable taxes in connection with distributing your ...
17
votes
2answers
228 views

Can I respond to comments in Software Center as app developer?

Is there anyway to respond to some comments privately on the Ubuntu software center? Some users of my app seem to be having problems but have not filed bug reports or asked questions on the launchpad ...
16
votes
1answer
3k views

How do I enable the “extras” repository?

I keep reading about an extras repository for Ubuntu with new software that comes out independently of the distro release. How do I enable it?
15
votes
1answer
518 views

Do I need to re-purchase software in the Ubuntu Software Centre if I reinstall?

I want to purchase the Fluendo DVD player using the Ubuntu Software Centre. If I reinstalled Ubuntu, would I have to purchase the software again?
14
votes
2answers
23k views

How do I enable the “backports” repository?

How to enable the backports repository so I can get newer versions of software?
14
votes
1answer
465 views

Is there a way to limit the bandwidth that Software Center uses?

Whenever I am downloading packages using Ubuntu Software Center (or any package manager for that matter), my Internet connection slows to an absolute crawl. In fact, most requests timeout. Is there a ...
14
votes
2answers
259 views

Why do some commercial apps have a section called 'also requires' and free apps don't?

In the Ubuntu Software Center paid (commercial) applications get a section called 'Also requires' which is quite neat. Why don't the free applications get this feature? For example Amnesia: The Dark ...
13
votes
4answers
653 views

How do I find add-ons for packages when using the command line?

My question is a little bit different from others already asked, I guess. I've already searched for answers, but I didn't find anything related. For example, I've always installed K3B via Terminal ...
13
votes
9answers
18k views

Dropbox install stuck at 99%, how do I fix it? (and any dpkg errors)

I tried to install Dropbox using How to install Dropbox?, or with apt-get install nautilus-dropbox. Dropbox loads until 99% and then hangs, causing the system to go to 100% cpu usage. If I reboot or ...
13
votes
4answers
32k views

How to list user installed applications (not packages)?

Not packages and not all applications. Just the applications user installed by himself from whatever source (Software Center, manually added PPA, etc.). If the above is not possible - a list of all ...
13
votes
3answers
484 views

When will ratings and review for Ubuntu Software Center start?

I remember there were announcements, that Ubuntu Software Center should get a rating and review system. Don't know if these announcement were official, but I remember it was stated it could start ...
13
votes
2answers
236 views

How can a free, proprietary application be submitted to the Software Center?

I'd like to suggest to the developers of simfy that their desktop application be submitted to the Software Center. How should they go about doing this?
13
votes
0answers
1k views

Uninstalling application built from source [duplicate]

Possible Duplicate: If I build a package from source how can I uninstall or remove completely? I know that Ubuntu has come a long way in helping new users to get used to their linux ...
13
votes
6answers
384 views

Multiple versions of the same app on Ubuntu Software Centre?

I already published my proprietary app on Ubuntu Software Centre (https://myapps.developer.ubuntu.com), and now I want to update it with the new version. This time I wanted to upload multiple builds ...
12
votes
4answers
46k views

Can I uninstall and reinstall Ubuntu Software Center?

Since migrating to a true install and upgrading to 12.04 I have had several problems that seem to relate to the Ubuntu Software Center. Hanging at applying changes and blank screen on screen lock only ...
12
votes
2answers
630 views

How can I add screenshots of programs to the Software Center

Some programs in the Software Center lack screenshots. Is there a way to add them? Idea: It would be nice if there was some sort of button Add Screenshot under the "no screenshot" area
12
votes
1answer
516 views

Is there any web API for Software Center available?

I wonder if there is an API available for using contents from the Ubuntu Software Center on my webpage. I know The Ubuntu Apps Directory website contains an almost complete database of applications ...
12
votes
1answer
299 views

How to take ownership over an existing Ubuntu Software Center app?

My name is Michael Tunnell and I am one of the project members of the download manager, uGet. uGet has been out of date in Ubuntu for over a YEAR and we are trying to fix that. (You can verify my ...
12
votes
1answer
288 views

Promoting an app in the Ubuntu Software Center through a ratings and reviews API

As an app author, I would like to promote my app in Ubuntu. One nice way to do it is to encourage users to submit their reviews and ratings to the Software Center. It would be really cool if I could ...
12
votes
4answers
7k views

“Authentication service is not available” when installing IDLE (using python 2.7)

I am getting this error installing IDLE on 12.10: Software can't be installed or removed because the authentication service is not available. (org.freedesktop.PolicyKit.Error.Failed: ...
12
votes
1answer
135 views

How to add dependency after submitting a proprietary app to USC?

I submitted my app "Brightness Controller" under proprietary license and it has been published. It contains an executable .py file. But the app depends on python-wxgtk2.8 I wrote it in the comments ...
11
votes
2answers
13k views

Fixing software center catalog

I'm new to Ubuntu, it looks like it is better than Windows. Last day I tried to install Kget (the download manager) but during the process my computer suddenly stopped working. So I had to switch it ...
11
votes
1answer
4k views

How to remove the Ubuntu Software Center Suggestions from the Dash

I want to remove the Ubuntu Software Center Suggestions from the Dash in Ubuntu 12.10. How to do that?
11
votes
7answers
81k 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 ...
11
votes
1answer
279 views

Show personalized banner exhibits on Ubuntu Software Center

How can I show my own personalized banner exhibits on Ubuntu Software Center? I've seen some URL definitions on /usr/share/software-center/softwarecenter/enums.py and ...
10
votes
2answers
31k 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.
10
votes
1answer
265 views

Hidden parts of recently uninstalled software

When I uninstall some software and then reinstall it through Ubuntu Software Centre after a short period of time, the notification says that it is only being installed and not downloaded. However if ...
10
votes
3answers
9k views

“Software can't be installed or removed because the authentication service is not available. ”

I have 12.10 ubuntu and when I try to remove / install programs I get notification : Software can't be installed or removed because the authentication service is not available. ...
10
votes
2answers
2k views

How can I install 'Revenge of the Titans'?

Revenge of the Titans is one of the games from the Humble Indie Bundle. I downloaded the i386 .deb file (I'm on a 32bit installation) and tried to install it using the Software Centre. However, when ...