Linux - Ubuntu下执行apt-get update报错：Some index files failed to download. They have been ignored, or old ones used instead.

本文转载自查看原文 2020-04-12 09:51 4899 Linux问题解决方案/ 常见问题解决方案 - Linux

报错命令

root@ubuntu:/etc/apt# apt-get update
Err:1 http://mirrors.aliyun.com/ubuntu trusty InRelease
  Could not resolve 'mirrors.aliyun.com'
Err:2 http://mirrors.aliyun.com/ubuntu trusty-backports InRelease
  Could not resolve 'mirrors.aliyun.com'
Err:3 http://mirrors.aliyun.com/ubuntu trusty-proposed InRelease
  Could not resolve 'mirrors.aliyun.com'
Err:4 http://mirrors.aliyun.com/ubuntu trusty-security InRelease
  Could not resolve 'mirrors.aliyun.com'
Err:5 http://mirrors.aliyun.com/ubuntu trusty-updates InRelease
  Could not resolve 'mirrors.aliyun.com'
Reading package lists... Done
W: Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty/InRelease  Could not resolve 'mirrors.aliyun.com'
W: Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-backports/InRelease  Could not resolve 'mirrors.aliyun.com'
W: Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-proposed/InRelease  Could not resolve 'mirrors.aliyun.com'
W: Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-security/InRelease  Could not resolve 'mirrors.aliyun.com'
W: Failed to fetch http://mirrors.aliyun.com/ubuntu/dists/trusty-updates/InRelease  Could not resolve 'mirrors.aliyun.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.

报错原因

解析域名不对

解决方案

vim /etc/systemd/resolved.conf

dns改成8.8.8.8

保存，重启机器即可

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