Fix a "Installation Of Packages From Unauthenticated Source's " ERROR IN UBUNTU 11 10
The first thing i did after i bought my first laptop was changing it to dual-boot with windows 7 and Ubuntu. I installed Ubuntu 11 10. Now within hours i updated my Ubuntu with few software's likes vlc, shotwell,wine. Later on that week i found few updates for my ubuntu. It had updates for chrome, ffmeg, some updates on system utility too. But when i try to install updates it show up message.I searched few Ubuntu forums and blogs, and found this simple solution. Which i share with my readers below. In Ubuntu panel, click activities > applications> update manager
On the Software Sources window, click on the Ubuntu Software tab.
Under Downloadable from the Internet, put a check on Source code.
Close the window and the changes will be applied. On Update Manager, click on Install Updates. After checking 'Source code' (which was not checked in my case) The error did not show up again. Hope this works for you too.
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