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报错内容：[root@oldboy-32期 ~]# yum install rpcbind -y
Loaded plugins: fastestmirror, security
Setting up Install Process
Loading mirror speeds from cached hostfile
* base:mirrors.aliyun.com
* epel:mirrors.aliyun.com
* extras:mirrors.aliyun.com
* updates:mirrors.aliyun.com
http://mirrors.aliyun.com/centos/6/updates/x86_64/repodata/db9ad4c9c72226a12da21d3020b392a506ed5bf8bc05e69a3a80392b579fc790-primary.sqlite.bz2:[Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404 NotFound"
Trying other mirror.
To address this issue please refer to the belowknowledge base article
https://access.redhat.com/articles/1320623
If above article doesn't help to resolve this issueplease open a ticket with Red Hat Support.
http://mirrors.aliyuncs.com/centos/6/updates/x86_64/repodata/db9ad4c9c72226a12da21d3020b392a506ed5bf8bc05e69a3a80392b579fc790-primary.sqlite.bz2:[Errno 14] PYCURL ERROR 7 - "couldn't connect to host"
Trying other mirror.
Error: failure:repodata/db9ad4c9c72226a12da21d3020b392a506ed5bf8bc05e69a3a80392b579fc790-primary.sqlite.bz2from updates: [Errno 256] No more mirrors to try.
[root@oldboy-32期 ~]#
解决方法：
1. cd /etc/yum.repos.d/ ===>查看epel源是否下载
2. yum clean all======>清除所有下载的（包括已经坏的）
3. yum repolist=======>查看详情
4. yum install rpcbind nfs-utils===============>再次下载
5. echo $?===========>查看是否成功
