Can't install software from Ubuntu software center

Posted by Casbar on Super User See other posts from Super User or by Casbar
Published on 2011-02-25T18:52:36Z Indexed on 2012/03/30 17:34 UTC
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ubuntu-10.04

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linux-distributions

I've been experimenting with Ubuntu 10.04(64bit) inside a VirtualBox VM. This isn't my first experience with Linux, but I'm still very much a Linux noob.

Whenever I try to install software from the Ubuntu Software Center, the installation gets interrupted and I get a warning that this installation requires untrusted sources. I can install anything I want using apt-get, it's just the gui that doesn't work. I've done research on the issue and taken the following precautions with no result:

under software sources

Allowed Canonical partners
Allowed source code
Changed the download source to main server

I get no errors when running an apt-get update. Can anyone shed some light on the issue?

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