PC-BSD 9.2 がbootできない。
9.1 までは 64bitでも32bitでもbootできてたPCなんだけど

試しに9.1にvirtualbox入れて、VMに問題の9.2DVDでインストールしたら
問題なくインストールできた。

なんか制限がきつくなったのかなあ
9.1のdmesg はこんな感じ
Copyright (c) 1992-2012 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 9.1-RELEASE-p20 #0: Tue Sep 10 17:07:53 UTC 2013
root@amd64-builder.pcbsd.org:/usr/obj/usr/src/sys/GENERIC amd64
CPU: Intel(R) Core(TM)2 Quad CPU Q9650 @ 3.00GHz (2999.72-MHz K8-class CPU)
Origin = "GenuineIntel" Id = 0x1067a Family = 6 Model = 17 Stepping = 10
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Features2=0xc08e3fd<SSE3,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,XSAVE,OSXSAVE>
AMD Features=0x20100800<SYSCALL,NX,LM>
AMD Features2=0x1<LAHF>
TSC: P-state invariant, performance statistics
real memory = 5100273664 (4864 MB)
avail memory = 4076158976 (3887 MB)
Event timer "LAPIC" quality 400
ACPI APIC Table: <A_M_I_ OEMAPIC >
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
FreeBSD/SMP: 1 package(s) x 4 core(s)
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
cpu2 (AP): APIC ID: 2
cpu3 (AP): APIC ID: 3