Configure local source via cdrom 2018/4/23

1  rm - rf /etc/yum.repos.d/*
2  mount /dev/cdrom /mnt
3  vim /etc/yum.repos.d/dvd.repo

[dvd]
name=dvd
baseurl=file:///mnt
gpgcheck=0


4  yum install -y httpd
    yum remove httpd