CentOS 7.1: don't install default packages in the core group except for linux-firmware
CentOS 7.1: don't install default packages in the core group except for linux-firmware

Pluto1010/packer-templates-1,Pluto1010/packer-templates-1,kaorimatz/packer-templates,ody/packer-templates,kaorimatz/packer-templates,reallyenglish/packer-templates,sachalin/packer_centos,matsumana/packer-templates-2,wporter82/packer-templates,ody/packer-templates,matsumana/packer-templates-2,sachalin/packer_centos,reallyenglish/packer-templates,wporter82/packer-templates