查找YUM源提示错误：
Loaded plugins: fastestmirror
Determining fastest mirrors
 * base: mirror.neu.edu.cn
 * extras: mirror.neu.edu.cn
 * updates: mirror.neu.edu.cn

Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: addons. Please verify its path and try again

 

 

============================================解决方法===========================================

1. cd /etc/yum.repos.d
2. [root@localhost yum.repos.d]# cp CentOS-Base.repo CentOS-Base.repo.bak
 [root@localhost yum.repos.d]# :>CentOS-Base.repo
 [root@localhost yum.repos.d]# vi CentOS-Base.repo

 

 

 

3. 复制以上内容
[base]
name=CentOS-$releasever - Base
#mirrorlist=http://mirrors.163.com/?release=$releasever&arch=$basearch&repo=os
baseurl=http://mirrors.163.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/devel/RPM-GPG-KEY-CentOS-5

#released updates
[update]
name=CentOS-$releasever - Updates
#mirrorlist=http://mirrors.163.com/?release=$releasever&arch=$basearch&repo=updates
baseurl=http://mirrors.163.com/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/devel/RPM-GPG-KEY-CentOS-5

#packages used/produced in the build but not released
[addons]
name=CentOS-$releasever - Addons
#mirrorlist=http://mirrors.163.com/?release=$releasever&arch=$basearch&repo=addons
baseurl=http://mirrors.163.com/centos/$releasever/addons/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/devel/RPM-GPG-KEY-CentOS-5

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
#mirrorlist=http://mirrors.163.com/?release=$releasever&arch=$basearch&repo=extras
baseurl=http://mirrors.163.com/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/devel/RPM-GPG-KEY-CentOS-5

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
#mirrorlist=http://mirrors.163.com/?release=$releasever&arch=$basearch&repo=centosplus
baseurl=http://mirrors.163.com/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=1
gpgkey=http://mirrors.163.com/centos/devel/RPM-GPG-KEY-CentOS-5

#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib
#mirrorlist=http://mirrors.163.com/?release=$releasever&arch=$basearch&repo=contrib
baseurl=http://mirrors.163.com/centos/$releasever/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.163.com/centos/devel/RPM-GPG-KEY-CentOS-5

 

 

4. 安装文件时会提示：GPG key retrieval failed: [Errno 14] HTTP Error 404: Not Found
5. 解放方法： yum install vsftp* --nogpgcheck

若出现一下提示 ：

解决办法：


如果是低版本，可以使用