I have had an Ubuntu 17.04 box running for over a year and update it regularly no problem. In the last two days after running an sudo apt update I get a load of messages like the one below:


I also get an 'Hash Sum mismatch' message and 'The package cache file is corrupted'

At the end it says 'You may want to run apt-get update to correct these problems'
I have tried an apt-get update & apt update, however I still get the same problem.

Ran an apt clean & apt remove, when I run the remove I get similar error messages. Also done a few power cycles. Still the problem persists.

Any help in resolving this would be greatly appreciated.

Many thanks
Tim

Tim:
I'd stop issuing destructive commands until you get this sorted out.

Sounds like your repo's or your Update Mgr may have became corrupted.

https://www.google.com/search?q=Unab...utf-8&oe=utf-8

https://bugs.launchpad.net/ubuntu/+bug/1307762

Thanks for the reply. It looks like all my problem files are in /var/lib/apt/lists which, after a search, says this dir is a 'Storage area for state information for each package resource'

Is this a temp storage are before files have been installed? Wondering if it's safe to delete these files from that directory.

Cheers
Tim

You're Welcome.

Yeah, you can remove them. No repositories will be deleted, they are configured in the config file in /etc/apt/sources.list.

https://unix.stackexchange.com/quest...r-apt-get-list

You can safely remove the contents of that directory as it is recreated when you refresh the package lists. If you remove the files, but do not run apt-get update to fetch the lists, commands like apt-cache will fail to provide information.

https://askubuntu.com/questions/1799...-huge-in-12-04