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update-manager package

Ubuntu 11.10: Requires Installation of untrusted packages

Asked by Sean

I checked my update manager to see if I had any updates, which I did. When I first hit 'install' for the updates it came back with the "requires installation of untrusted packages" and then stopped the installation. So I did it again and got the same message, but after reading the details which read "libunity-2d-private0 unity-2d unity-2d-launcher unity-2d-panel unity-2d-places unity-2d-spread". I determined that it was only the Unity 2d updates that I couldn't install so I deselected them and proceeded to update everything else fine.

However, I'd like to update unity 2d also, but I don't know how to fix this problem. Any help would be appreciated.

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Ubuntu update-manager Edit question
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Solved by:
Eliah Kagan
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Sam_ (and-sam) said : 		#1

Please switch to main server and try again.
https://help.ubuntu.com/community/Repositories/Ubuntu#Download_Server

In case update via terminal in order to get verbose output.
sudo apt-get update
sudo apt-get ugrade

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Best Eliah Kagan (degeneracypressure) said : 		#2

Please follow steps 1-4 at https://help.ubuntu.com/community/PackageManagerTroubleshootingProcedure. That might fix the problem (in which case, you can mark this question as Solved). If not, then please report what happened, including posting the complete text from the Terminal.

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Sean (s-wuensch) said : 		#3

I switched to main server and tried again with the same results.

I followed the four steps at https://help.ubuntu.com/community/PackageManagerTroubleshootingProcedure and was able to resolve the problem this way.

Is this something I'll have to do on a continuous basis if I want to install Unity 2d updates or is this a permanent fix?

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Sean (s-wuensch) said : 		#4

Thanks Eliah Kagan, that solved my question.

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Eliah Kagan (degeneracypressure) said : 		#5

You should not have to do that every time there is an update for those packages. In fact, it is probable that the problem didn't have much to do with changes made to those packages, instead being cause by outdated package information on your system that was not properly brought up to date for some reason.

So while you might have to use that procedure again in the future, you will probably/hopefully never have to, and it would be very unusual if you had to do it every time those particular packages got updates.

If you find that you do have to do this regularly, or always in response to specific conditions, you should post a new question about that, as that might be an indication of a bug that could be investigated, reported, and fixed.

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Sam_ (and-sam) said : 		#6

Erratum: typo in #1
sudo apt-get upgrade