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I am trying to update Ubuntu 12.04 using the Update Manager, but when I click the Check button in the Update Manager window I get an error saying: 

Failed to download repository information

In the details it shows:

W:Failed to fetch http://ppa.launchpad.net/ronmi/wallbox/ubuntu/dists/precise/main/source/Sources  404  Not Found
W:Failed to fetch http://ppa.launchpad.net/ronmi/wallbox/ubuntu/dists/precise/main/binary-i386/Packages  404  Not Found
E:Some index files failed to download. They have been ignored, or old ones used instead.

Normal updates that show up automatically work just fine, but I want to upgrade my Ubuntu to the newer version without removing it and installing the new one. What do I have to do to get this update to download and install?

karel
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1 Answers1

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There is no longer a precise folder underneath the dists directory in Ronmi's Wallbox.

You should probably either take the opportunity to report it to the PPA manager (via his Launchpad page @ https://launchpad.net/~ronmi/+archive/wallbox ) or simply remove that PPA subscription entirely, since it is not available.

It's possible that they may have stopped supporting 12.04 for some reason, or may simply be doing some maintenance on their repositories.

gravity
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