Hello everyone. I had some trouble lately that lead me to re-install Ubuntu 10.10. Now I have problems using Update Manager, Ubuntu Software Center, and even apt-get update.
For both Update Manager and the Software Center, everything I try to install gives me this error that the sources are not authenticated. I have a full list of updates that it finds, but it can't install any.
When I run apt-get update, it finds all the updates fine, but gives me a bunch of these errors at the end:
W: GPG error: http://mirror.anl.gov maverick Release: Unknown error executing gpgv
I get the error regardless of what mirror I have selected.
I am able to install through both apt-get install and Synaptic Package Manager. A warning comes up about the not being able to authenticate the software, but both of them can proceed past this, unlike the previously mentioned applications.
So, looking into my settings in the update manager, I see that my list of trusted software providers is completely blank. I imagine this is why nothing is being authenticated. Is there some sort of default list that I can copy? I would prefer to avoid manually installing packages instead of simply updating.