Updates – Fix Error During Update on Ubuntu

updates

When I try to Update my 14.04 ubuntu It sort 

A problem occurred during the update. 
This is usually some sort of network problem, 
please check your network connection and retry.
W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/natty-backports/main/source/Sources  404  Not Found [IP: 193.206.139.34 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/natty-backports/restricted/source/Sources  404  Not Found [IP: 193.206.139.34 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/natty-backports/universe/source/Sources  404  Not Found [IP: 193.206.139.34 80]
, W:Failed to fetch http://it.archive.ubuntu.com/ubuntu/dists/natty-backports/multiverse/source/Sources  404  Not Found [IP: 193.206.139.34 80]
, E:Some index files failed to download. They have been ignored, or old ones used instead.

I've installed it years ago with a 11.04 disk and I think it has some problems with EOL updates… anyone knows how to fix it?

Thanks!!

Best Answer

You must first delete old apt lists files from this path:

/var/lib/apt/lists/

then update apt:

sudo apt-get update