How to install software that "Requires installation of untrusted packages"?

Posted by user135682 on Ask Ubuntu See other posts from Ask Ubuntu or by user135682
Published on 2013-03-13T22:58:26Z Indexed on 2013/06/26 16:29 UTC
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updates

I am using Ubuntu 12.10. When I try to update the software, it shows me this error:

Requires installation of untrusted packages
This requires installing packages from unauthenticated sources.
Details 
kalzium-data kanagram kate-data kde-l10n-engb kde-l10n-zhcn kde-runtime-data kdegames-data klettres-data libakonadi-kabc4 liblxc0 libwildmidi-config libwildmidi1 lxc marble-data nepomuk-core-data parley-data tomboy

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Developer IT

How to install software that "Requires installation of untrusted packages"? - Developer IT

How to install software that "Requires installation of untrusted packages"?

updates

Related posts about updates

sudo apt-get update problem

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yum update works but yum --security update fails to work in Fedora 12

Cannot update, apt-get cannot fetch index files

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