配置[yum,epel]源

配置阿里云[yum,epel]源

备份系统原有yum源

mkdir /etc/yum.repos.d/OldRepo
mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/OldRepo/

下载yum源文件

curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

下载epel源文件

curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

[清除，生成]yum缓存

yum clean all
yum makecache

配置本地yum源

创建挂载目录

mkdir /mnt/cd

挂载光盘

echo "/dev/sr0    /mnt/cd     iso9660     defaults    0 0" >>/etc/fstab
mount -a

创建yum源文件

cat <<EOF  >/etc/yum.repos.d/local.repo
[Local-YUM]
name=Linux CentOS 7.4
baseurl=file:///mnt/cd
gpgcheck=0
EOF

[清除，生成]yum缓存

yum repolist all (列出所有源)

yum clean all
yum makecache