Additional information: I initially tried to deploy ISO on a KVM vm. It has two interfaces (eth0 and eth1), eth1 has Internet access (an address is assign via DHCP) and is configured after CentOS installation. So to the moment of menu's appearance the vm had Internet access
Additional information: I initially tried to deploy ISO on a KVM vm. It has two interfaces (eth0 and eth1), eth1 has Internet access (an address is assign via DHCP) and is configured after CentOS installation. So to the moment of menu's appearance the vm had Internet access