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spiritofelric
January 21st, 2010, 09:15 PM
Hoping someone can lead me to documentation or explain how to handle the situation where:

Ubuntu software Center produces the warning, "Requires installation of untrusted packages". The guides I've read don't explain the preferred way of importing a key or what to do in the Ubuntu register to ensure I'm downloading trusted packages. Instead of just going to Synaptic PM and adding the package (if that isn't the way)?

Sorry for the naive question.

The specific download in question is:
=====================================
Qt 4 Designer

The message is:
==============
Requires installation of untrusted packages
The action would require the installation of packages from not authenticated sources.
Details:
fontconfig-config libfontconfig1 libfontconfig1-dev

cariboo907
January 21st, 2010, 10:44 PM
Where are you downloading the packages from? I just installed QT$ Designer yesterday using Synaptic, and never got any messages about untrusted packages. I'm running Karmic and I use the main US servers.

nothingspecial
January 21st, 2010, 11:20 PM
apt-cache showpkg qt4-designer
Package: qt4-designer
Versions:
4.5.3really4.5.2-0ubuntu1 (/var/lib/apt/lists/gb.archive.ubuntu.com_ubuntu_dists_karmic_main_bin ary-i386_Packages)
Description Language:
File: /var/lib/apt/lists/gb.archive.ubuntu.com_ubuntu_dists_karmic_main_bin ary-i386_Packages
MD5: cdfd30f0ec154b8bdc30b8b14be6b2d4


Reverse Depends:
kuiviewer,qt4-designer
qdevelop,qt4-designer
qt-sdk,qt4-designer
qdevelop,qt4-designer
libqtjambi-dev,qt4-designer
eric,qt4-designer
qt4-dev-tools,qt4-designer
libqtgui4,qt4-designer 4.1.4
libqt4-qt3support,qt4-designer 4.4.0~beta1-1
libqscintilla2-designer,qt4-designer
kuiviewer,qt4-designer
Dependencies:
4.5.3really4.5.2-0ubuntu1 - libc6 (2 2.3.4) libgcc1 (2 1:4.1.1) libqt4-designer (5 4.5.3really4.5.2-0ubuntu1) libqt4-network (5 4.5.3really4.5.2-0ubuntu1) libqt4-xml (5 4.5.3really4.5.2-0ubuntu1) libqtcore4 (5 4.5.3really4.5.2-0ubuntu1) libqtgui4 (5 4.5.3really4.5.2-0ubuntu1) libstdc++6 (2 4.1.1) libqt4-dev (0 (null)) libqt4-designer (3 4.4.0~beta1-1) libqt4-core (3 4.4.0~beta1-1) libqt4-designer (3 4.4.0~beta1-1) qt4-dev-tools (1 4.0.1-2)
Provides:
4.5.3really4.5.2-0ubuntu1 -
Reverse Provides:

Doesn`t look problamatic.

spiritofelric
January 22nd, 2010, 12:40 AM
Where are you downloading the packages from? I just installed QT$ Designer yesterday using Synaptic, and never got any messages about untrusted packages. I'm running Karmic and I use the main US servers.

I was using the Ubuntu Software Center... i suppose i could just try obtaining it through Synaptic Package Manager.

Just wondering what the consequence of marking not authenticated software is and if there is a proper process i should follow when installing non-authenticated files?

spiritofelric
January 22nd, 2010, 04:13 AM
GAH!

Well... i installed it through Synaptic and now my fonts are totally messed up. I further compounded the issue by trying to uninstall qt4-designer and all its dependencies, and now most fonts are barely legible.

I'm really stuck for how to fix this... any suggestions would be appreciated.


Additional:
It seems to be specifically linked to KDE apps. And more specifically apps that use QT as the design model.
Font Sizes 9-12 seem to be the only ones impacted. At this point, though, most of my KDE apps are unusable. Still searching for a solution.

DannStarr
January 23rd, 2010, 01:43 AM
Im in the same situation as you. Any software I want to download and install using ubuntu software centre gives me that same error message. I click OK, hoping it will continue to just download, but nothing... I've checked my repositories and all seem to be active

JiuJitsu500
January 23rd, 2010, 01:51 AM
I have the same issues no matter what I do, but it gets past that through the terminal...

In the software center, look at the app you wish to install. Instead of clicking install, scroll down to the bottom where the title is, and after it will be something in parenthesis... i.e. Movie Player has (totem) following it.

open a terminal and type:

sudo apt-get install WHATEVER-WAS-IN-PARENTHESIS

Obviousl replacing the caps there with whatever was in the parenthesis... so movie player would be "sudo apt-get install totem"

It'll ask you for your password, so give it... then to verify, so hit y, then y gaain to install.... But this only works from the software center outside of it you have you change the servers you have. But try this :)

DannStarr
January 23rd, 2010, 03:04 AM
I managed to fix my Ubuntu Software Centre with the following commands:


sudo apt-get clean


cd /var/lib/apt


sudo mv lists lists.old


sudo mkdir -p lists/partial


sudo apt-get clean


sudo apt-get update

spiritofelric
January 23rd, 2010, 07:16 PM
I managed to fix my Ubuntu Software Centre

Thank you... that was all very helpful. I did a 'man' on 'app-get' and learned quite a bit.

Sometimes the app doesn't have a relation in brackets. It's kind-of frustrating because synaptic shows all the dependencies at once, where as, USC only shows them one at a time. Wish there was a comprehensive guide on how to safely manage installs.

Really appreciate you taking the time to respond. Do you know any commands for completely removing an app?

lian1238
January 23rd, 2010, 09:34 PM
Dannstarr, could you explain what the fix does and why it works? Thanks a bunch!

I've experienced this bug since I first installed Karmic. I'm surprised it hasn't been fixed yet!

LouieGeetoo
March 11th, 2011, 02:53 AM
I managed to fix my Ubuntu Software Centre with the following commands:


sudo apt-get clean
cd /var/lib/apt
sudo mv lists lists.old
sudo mkdir -p lists/partial
sudo apt-get clean
sudo apt-get update
I was having trouble installing Skype on Ubuntu 10.10, and this fixed it for me. Thank you!