Yum 更新错误：无法检索镜像列表

Question

我正在尝试进行 yum 更新。这是我得到的错误。

sudo yum update
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=6&arch=x86_64&repo=os error was
12: Timeout on http://mirrorlist.centos.org/?release=6&arch=x86_64&repo=os: (28,'connect() timed out!')
Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again

我做了wget http://mirrorlist.centos.org/?release=6&arch=x86_64&repo=os。它永远不会通过。所以我知道我必须以某种方式改变这一点。谁能告诉我如何解决这个问题。我在这里找到了许多与此问题相关的帖子；但找不到合适的解决方案。

我的/etc/resolve.conf是：

nameserver 130.102.115.238
nameserver 130.102.128.53
nameserver 130.102.2.53

I tried adding nameserver 8.8.8.8. It didn't work.

My /etc/yum.repos.d/Centos-Base.repo is:

[base]
name=CentOS-$releasever - Base
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
#baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

#released updates
[updates]
name=CentOS-$releasever - Updates
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
#baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
#baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
#baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
#baseurl=http://mirror.centos.org/centos/$releasever/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

I tried commenting the mirrorlists and uncommenting the baseurls. Didn't work. I really need some help with this. Stuck on this for sometime now.

PS I am trying to set a Hadoop node using Cloudera. That's when I encountered this problem. So I tried doing a yum update individually to figure out what's wrong.

Answer 1

看起来您的 repo 文件中没有配置代理信息。根据http://www.centos.org/docs/5/html/yum/sn-yum-proxy-server.html，您必须在yum.conf. 本文档适用于 CentOS 5，但它也适用于 CentOS 6。