在搭建数据库环境的时候，往往要配置yum源，由于本地yum无法安装全部的依赖包，就需要配置在线包。在搭建环境的时候习惯用host-only来配置，如果需要在线配置的话，需要添加一块桥接网卡
然后修改repo
[root@mysql-db01 ~]# cat /etc/yum.repos.d/local.repo
[local-yum]
name=local-yum
baseurl=file:///mnt/iso/
enabled=1
gpgcheck=0
添加以下 内容到文件中local.repo
[root@mysql-db03 bin]# cat /etc/yum.repos.d/local.repo
[local-yum]
name=local-yum
baseurl=file:///mnt/iso/
enabled=1
gpgcheck=0
[epel]
name=Extra Packages for Enterprise Linux 7 - $basearch
baseurl=http://mirrors.aliyun.com/epel/7/$basearch
failovermethod=priority
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
[epel-debuginfo]
name=Extra Packages for Enterprise Linux 7 - $basearch - Debug
baseurl=http://mirrors.aliyun.com/epel/7/$basearch/debug
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
gpgcheck=0
[epel-source]
name=Extra Packages for Enterprise Linux 7 - $basearch - Source
baseurl=http://mirrors.aliyun.com/epel/7/SRPMS
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
gpgcheck=0
然后yum repolist
