CentOS 7 yum install cobbler

需要关闭selinux。（重要）
centos官方源中无cobbler软件包，需要先安装epel源。然后清理yum缓存。
安装cobbler 和 cobbler-web等，启动相关服务，并且添加为开机启动。最后运行cobbler 常规检查

setenforce 0
yum install http://mirrors.163.com/centos/7/extras/x86_64/Packages/epel-release-7-9.noarch.rpm
yum clean all
yum install cobbler cobbler-web httpd tftp dhcp
systemctl start cobblerd.service
systemctl enable cobblerd.service
systemctl start httpd.service
systemctl enable httpd.service
cobbler check