Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again YUM报错

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2.# mount /dev/sr0 /media/

mount: block device /dev/sr0 is write-protected, mounting read-only

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3.本地yum源配置

# vi /etc/yum.repos.d/CentOS-Base.repo 

[local]

baseurl=file:///me

name=localdia

gpgcheck=0

enabled=1

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4.yum list  列出所有包

yum search php *  列出相关包;;;;;;;;;

yum install java* -y  安装包

yum remove java* 卸载包

yum provides /usr/sbin/semanage  //查找命令或文件对应包名

报错笔记：

注：如安装时出现以下错误

  Error Downloading Packages:

解决办法： 是因为没有安装 ftp包，进入到包目录下安装：

#cd  /media/Packageyum

#rpm -ivh ftp-0.17-51.1.el6.x86_64.rpmyum 

安装完成后即可。

注：如安装时出现以下错误

Error: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again

此错误为DNS设置错误：

解决办法：

 echo "nameserver 8.8.8.8" > /etc/resolv.conf

[root@PXEserver ~]# more /etc/resolv.conf 

nameserver 8.8.8.8

[root@PXEserver ~]# 

注：如安装时出现以下错误

Transaction Check Error:

  file /usr/bin/perror from install of mysql-server-5.1.73-3.el6_5.x86_64 conflicts with file from package sysinit-1.0-10.x86_64

原因：是mysql-server  里的perror 和 sysinit里的perror同名 冲突了

httpd.x86_64