当我使用此命令时，sudo do-release-upgrade我总是收到以下错误
Err http://us.archive.ubuntu.com xenial/universe Sources
Err http://us.archive.ubuntu.com xenial/universe amd64 Packages
Err http://us.archive.ubuntu.com xenial/universe i386 Packages
Err http://us.archive.ubuntu.com xenial/universe Sources
404 Not Found [IP: 91.189.91.26 80]
Err http://us.archive.ubuntu.com xenial/universe amd64 Packages
404 Not Found [IP: 91.189.91.26 80]
Err http://us.archive.ubuntu.com xenial/universe i386 Packages
404 Not Found [IP: 91.189.91.26 80]
Fetched 2.874 kB in 6s (0 B/s)
Error during update
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://us.archive.ubuntu.com/ubuntu/dists/xenial/universe/source/Sources
404 Not Found [IP: 91.189.91.26 80]
, W:Failed to fetch
http://us.archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-amd64/Packages
404 Not Found [IP: 91.189.91.26 80]
, W:Failed to fetch
http://us.archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-i386/Packages
404 Not Found [IP: 91.189.91.26 80]
, E:Some index files failed to download. They have been ignored, or
old ones used instead.
答案1
就我而言，从默认/当前镜像访问一个特定文件的速度非常慢。
wget http://us.archive.ubuntu.com/ubuntu/dists/xenial/universe/binary-amd64/Packages.xz
我测试了一个一堆镜子并使用了快速而有效的方法。