FreeBSD-12.0-BETA1-i386-bootonly.iso will not boot

[CenturyLink Customer]

Nov. 6, 2018I have been test booting FreeBSD-12.0-BETA1-i386-bootonly.iso without success this morning.Previously, the same no boot for a.k.a. "BETA2" and "BETA3", as well.Checksums for these discs match okay.Suggestion, was made by others, that recent changes to boot-loader may have caused this.Suggestions or workarounds would be appreciated.Sincerely,cksalexander at q.com