更新：
sudo rm /var/lib/apt/lists/partial/*暂时运行即可sudo apt-get update工作。
原来的：
我见过类似问题的答案，但答案都是“您的 ubuntu 版本不再受支持”。
我们使用的是 12.04 Server，这是一个 LTS 版本。据我所知，这意味着在支持结束之前应该会存在精确的软件包。
错误大约在一两周前才开始出现。如果有帮助的话，服务器位于 Amazon EC2 上。
我运行sudo apt-get update并收到以下错误：
Hit http://repos.sensuapp.org sensu Release.gpg
Hit http://repos.sensuapp.org sensu Release
Hit http://security.ubuntu.com precise-security Release.gpg
Hit http://packages.treasure-data.com precise Release.gpg
Hit http://us-east-1.ec2.archive.ubuntu.com precise Release.gpg
Hit http://packages.treasure-data.com precise Release
Hit http://us-east-1.ec2.archive.ubuntu.com precise-updates Release.gpg
Hit http://security.ubuntu.com precise-security Release
Hit http://repos.sensuapp.org sensu/main amd64 Packages
Hit http://packages.treasure-data.com precise/contrib amd64 Packages
Hit http://packages.treasure-data.com precise/contrib i386 Packages
Hit http://us-east-1.ec2.archive.ubuntu.com precise Release
Ign http://packages.treasure-data.com precise/contrib TranslationIndex
Hit http://repos.sensuapp.org sensu/main i386 Packages
Hit http://us-east-1.ec2.archive.ubuntu.com precise-updates Release
Ign http://repos.sensuapp.org sensu/main TranslationIndex
Hit http://security.ubuntu.com precise-security/main Sources
Hit http://security.ubuntu.com precise-security/universe Sources
Hit http://us-east-1.ec2.archive.ubuntu.com precise/main Sources
Hit http://security.ubuntu.com precise-security/main amd64 Packages
Ign http://packages.treasure-data.com precise/contrib Translation-en_US
Ign http://packages.treasure-data.com precise/contrib Translation-en
Hit http://security.ubuntu.com precise-security/universe amd64 Packages
Hit http://ppa.launchpad.net precise Release.gpg
Hit http://security.ubuntu.com precise-security/main i386 Packages
Hit http://security.ubuntu.com precise-security/universe i386 Packages
Hit http://us-east-1.ec2.archive.ubuntu.com precise/main i386 Packages
Hit http://security.ubuntu.com precise-security/main TranslationIndex
Ign http://repos.sensuapp.org sensu/main Translation-en_US
Hit http://security.ubuntu.com precise-security/universe TranslationIndex
Ign http://repos.sensuapp.org sensu/main Translation-en
Hit http://ppa.launchpad.net precise Release.gpg
Hit http://us-east-1.ec2.archive.ubuntu.com precise/main TranslationIndex
Hit http://security.ubuntu.com precise-security/main Translation-en
Hit http://us-east-1.ec2.archive.ubuntu.com precise/universe TranslationIndex
Hit http://security.ubuntu.com precise-security/universe Translation-en
Hit http://us-east-1.ec2.archive.ubuntu.com precise-updates/main Sources
Hit http://us-east-1.ec2.archive.ubuntu.com precise-updates/universe Sources
Hit http://us-east-1.ec2.archive.ubuntu.com precise-updates/main amd64 Packages
Hit http://ppa.launchpad.net precise Release
Hit http://us-east-1.ec2.archive.ubuntu.com precise-updates/universe amd64 Packages
Hit http://us-east-1.ec2.archive.ubuntu.com precise-updates/main i386 Packages
Hit http://us-east-1.ec2.archive.ubuntu.com precise-updates/universe i386 Packages
Hit http://ppa.launchpad.net precise Release
Hit http://us-east-1.ec2.archive.ubuntu.com precise-updates/main TranslationIndex
Hit http://us-east-1.ec2.archive.ubuntu.com precise-updates/universe TranslationIndex
Hit http://ppa.launchpad.net precise/main amd64 Packages
Hit http://us-east-1.ec2.archive.ubuntu.com precise/main Translation-en
Hit http://us-east-1.ec2.archive.ubuntu.com precise/universe Translation-en
Hit http://us-east-1.ec2.archive.ubuntu.com precise-updates/main Translation-en
Hit http://us-east-1.ec2.archive.ubuntu.com precise-updates/universe Translation-en
Hit http://ppa.launchpad.net precise/main i386 Packages
Err http://us-east-1.ec2.archive.ubuntu.com precise/universe Sources
404 Not Found [IP: 91.189.91.24 80]
Hit http://ppa.launchpad.net precise/main TranslationIndex
Err http://us-east-1.ec2.archive.ubuntu.com precise/main amd64 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us-east-1.ec2.archive.ubuntu.com precise/universe amd64 Packages
404 Not Found [IP: 91.189.91.24 80]
Err http://us-east-1.ec2.archive.ubuntu.com precise/universe i386 Packages
404 Not Found [IP: 91.189.91.24 80]
Hit http://ppa.launchpad.net precise/main amd64 Packages
Hit http://ppa.launchpad.net precise/main i386 Packages
Hit http://ppa.launchpad.net precise/main TranslationIndex
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en
W: Failed to fetch http://us-east-1.ec2.archive.ubuntu.com/ubuntu/dists/precise/universe/source/Sources 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us-east-1.ec2.archive.ubuntu.com/ubuntu/dists/precise/main/binary-amd64/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us-east-1.ec2.archive.ubuntu.com/ubuntu/dists/precise/universe/binary-amd64/Packages 404 Not Found [IP: 91.189.91.24 80]
W: Failed to fetch http://us-east-1.ec2.archive.ubuntu.com/ubuntu/dists/precise/universe/binary-i386/Packages 404 Not Found [IP: 91.189.91.24 80]
E: Some index files failed to download. They have been ignored, or old ones used instead.
答案1
答案2
正如所指出的这里您需要做的就是us-east-1.ec2从 URL 中删除。
sudo sed -i 's/us-east-1\.ec2\.//g' /etc/apt/sources.list