when I update new packages The updater does not want to update due to haveing to load some untrusted packages. then the updater shuts down

[R0bstr]

When I click on update manager to up date the system, it begins but then stops. I recive an error windo that says:

          " This action would require the installation of untrusted packages from unauthenticated sources"

 then I have only on option which is to close the window. Each time I start the updater I recive the same message and updating
 fails.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: update-manager 1:0.152.25.5
ProcVersionSignature: Ubuntu 3.0.0-15.26-generic 3.0.13
Uname: Linux 3.0.0-15-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Fri Feb 17 15:00:38 2012
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/update-manager
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: Upgraded to oneiric on 2011-10-28 (112 days ago)

[RedSingularity (redsingularity)]

Try the update via the command line and apt-get.

Duplicate of bug 707392.
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