For further information on the topic, take a look at the upstream wiki page tracking broken repositories and explaining the two levels of brokenness:
https://wiki.debian.org/Teams/Apt/Sha1Removal Feel free to add other repositories there. @heiko: The PPAs are pending, but WRT Google Earth: There was no new release in the repository since Thu, 19 May 2011 16:50:30 +0000 (6.0.3.2197-r0 is the most recent in there) - it might be a good idea to delete the source. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/1558331 Title: message "The repository is insufficiently signed by key (weak digest)" is poorly worded Status in apt package in Ubuntu: Confirmed Bug description: The title pretty much says it all. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1558331/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp