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