I have tried installing on server Dell PowerEdge T130:
1. vCenter Appliance 6.5.0 U1g, Date: 2018-03-20 (VMware-VCSA-all-6.5.0-8024368) with ESXi 6.5 U1 A10, Date: 03 Apr 2018 (VMware-VMvisor-Installer-6.5.0.update01-7967591.x86_64-DellEMC_Customized-A10.iso)
2. vCenter Appliance 6.7 (VMware-VCSA-all-6.7.0-8217866.iso) with ESXi 6.7 A01, 23 Apr 2018 (VMware-VMvisor-Installer-6.7.0-8169922.x86_64-DellEMC_Customized-A01.iso),
in both installation (1. and 2.), it stuck in x% in stage 2, where installation is configuring vCenter on machine (RPM installation).
The installer log report I've at attached to this post.
From this thread https://communities.vmware.com/message/2738172#2738172
is seems that is has to do something with FQDN, but evey time I leave it blank and it fill it self with provided IP address.