I am trying to update my ubuntu 20.04 using cmd sudo apt-get update. But it's saying Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal/main/binary-arm64/Packages 404 Not Found [IP: 185.125.190.36 80] E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-updates/main/binary-arm64/Packages 404 Not Found [IP: 185.125.190.36 80] E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-security/main/binary-arm64/Packages 404 Not Found [IP: 185.125.190.36 80] E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-backports/main/binary-arm64/Packages 404 Not Found [IP: 185.125.190.36 80] E: Some index files failed to download. They have been ignored, or old ones used instead.
I have also tried copying new sources.list but am still unable to fix it. Can anyone help me with this? Thanks
